[[Concept:Live-communications]]

AndStatus: AndStatus is a low traffic social networking client with tree-like threaded conversations. It supports multiple protocols, including GNU social (StatusNet, e.g. Quitter.se, LoadAverage, Vinilox, etc.), Twitter and Pump.io AndStatus can combine your accounts from all networks into one Timeline, and it allows you to read and post even when you are offline. For Android OS version 4.1 or more.

Anontwi: Anontwi - is a tool for OAuth2 applications (such as: GNUSocial, Twitter...) that provides different layers of encryption and privacy methods.

AnonymousMessenger: Features Double end to end encryption Completely peer to peer using hidden services Cryptographic Identity Verification Excellent Network Security Voice Messages Live Voice Calls over tor (alpha feature) Text Messages Metadata stripped media messages Raw file sending of any size (100 GB+) coming soon... Both peers have to add each others onion addresses to be able to communicate Disappearing messages by default Encrypted file storage on Android Screen security

Atheism: Atheism is a multi purpose Perl script for X-Chat. Its main features include auto-away functions with message logging, announcement of away reason and coming back, announcement of songs playing in XMMS on selected channels, a user-friendly interface, detailed documentation, the ability to automatically save configuration in a file, and more.

AutoProfile: 'AutoProfile' is an extension to Gaim that lets users create customized away messages and profiles that can include dynamic content such as fortune quotes, computer uptime, and timestamps. The managing system handles the automatic periodic update of content text. Users configure the system throough a GUI, then set an away message simply by typing "/away" into an IM window and "/back" to do the opposite.

Ayttm: 'ayttm' is designed to become a Universal Instant Messaging client which will integrate all existing IM clients and provide a single consistent user interface. Currently, 'ayttm' supports sending and receiving messages in AIM, ICQ, Yahoo! Messenger, MSN, and Jabber. It also has file transfer between 'ayttm' users, and between users of 'ayttm' and users of the official MSN and Yahoo! clients. The project was formerly know as 'EveryBuddy.'

BSFlite: 'BSFlite' is a minimalistic, line-based AIM client. It is designed with simplicity and efficiency in mind and thus utilises as little RAM and CPU time as possible in order to be friendly to multiuser systems. It uses the OSCAR protocol to communicate with the AIM service. Instead of having a full screen console interface, BSFlite uses a command shell interface that lets you type without needlessly sifting through windows. It supports most standard AIM features, except chat rooms and block lists.

Babylon: Babylon Java Chat is a client and server combo that allows groups to chat and draw over the Internet or local networks. The client can be used as a stand alone Java application, or as an applet, which makes it simple to embed chat functionality in WWW documents. It features multi-colored graphics drawing ability, including freehand, lines, rectangles, ovals, and fonted text up to 120 pts. Users can interact publicly with everyone else on the server, or they can chat/draw privately using the "whisper" mode. The server will store and manage answering machine style messages for users who aren't online, and users who aren't watching their screens can be paged. In theory one server is capable of supporting any number of users. The Babylon chat server is normally operated in its GUI mode, but for convenience it can also be run as just a text-based application.

Better Angels Buoy: Better Angels' Buoy is an app designed to quickly connect survivors of domestic or dating violence (DV) with trusted friends, family members, advocates, and other allies in times of crisis.

Bitcoin-Qt: Bitcoin-Qt is a multiplatform bitcoin client and wallet. Bitcoin is a network and a currency establishing a PKI for electronic cash transactions which is distributed P2P. To quote the developers, "Bitcoin is a decentralized P2P electronic cash system without a central server or trusted parties. Users hold the crypto keys to their own money and transact directly with each other, with the help of the network to check for double-spending."

Bitlbee: An IRC server which can forward what you say to people on other chat networks: Jabber, ICQ, AIM, MSN and Yahoo.

BlameHangle: IRC bot that strives to do common tasks without blocking by using asynchronous sockets, threads and callbacks.

BlockSignal: BlockSignal is a secure instant messaging application based on Signal Android. Moreover, it uses a blockchain-based PKI system, Blockstack, to verify the identities of users so as to prevent Man-in-the-Middle attacks instead of Signal's authentication ceremony feature. Therefore, its security level depends on user awareness less.

Blosxom: 'Blosxom' is a lightweight yet feature-packed Weblog application designed from the ground up with simplicity, usability, and interoperability in mind. It relies on the file system, folders, and files as its content database. Users can create, edit, rename, and delete entries on the command-line, via FTP, WebDAV, or anything else they might use to manipulate their files.

Board-tnk: 'board-tnk' is a discussion board with very secure URL checking, support for multiple forums (with only one level thread allowed for each forum), use of cookies for showing users new messages and storing their information to simplify new posts, the ability to use a subset of HTML within the messages, multiple language support (English, French, German, Dutch, Italian, Turkish, Serbian, and Spanish), and a full admin page that allows you to create and delete forums, entire threads, or answers from a thread. You can prefix the MySQL tables if only one database is allowed on an ISP server. Versions exist for PHP3 and PHP4.

Bobot++: 'bobot++' is an IRC bot written in C++. Being the evolution of bobot, it provides time dependent commands, is multichannel, and has flood control, output priority control, and many other features. There are four user levels and three different protections. You cannot get operator privileges by spoofing the bot, and there is no backdoor.

Bookblog: Bookblog is a program which runs under a web server (such as Apache) and allows individuals to write up their reviews for a book in a form which is easily accessible, and appears to other browsers as a web log to which they can add their comments.

Booktype: Booktype is a free software platform that produces beautiful, engaging books formatted for print, iBooks and almost any ereader within minutes. It makes it easier for people and organisations to collate, organise, edit and publish books.

Bpquotes: 'bpquotes' is a quotations database designed for letting IRC users submit amusing quotes for others to see.

Briar: Briar is a messaging app designed for activists, journalists, and anyone else who needs a safe, easy and robust way to communicate. Unlike traditional messaging apps, Briar doesn't rely on a central server - messages are synchronized directly between the users' devices. If the internet's down, Briar can sync via Bluetooth or Wi-Fi, keeping the information flowing in a crisis. If the internet's up, Briar can sync via the Tor network, protecting users and their relationships from surveillance.

CGI:IRC: CGI:IRC is a Perl/CGI program that allows you to use IRC from a Web browser without having to have access to an IRC port. It does not use Java, but it does need a browser capable of rendering frames. It can be used on a Web page to allow users to chat, or it can be used to access chat from behind a firewall. CGI:IRC has an interface similar to many GUI IRC clients, with a tab for each channel, userlist and options tab (when used in modern, version 5+ browsers). Older browsers degrade to a single windowed interface with a slower updating userlist.

CWirc: CWirc is a plugin for the X-Chat IRC client to transmit raw Morse code over the internet using IRC servers as reflectors. The transmitted Morse code can be received in near real-time by other X-Chat clients with the CWirc plugin. CWirc tries to emulate a standard amateur radio rig: it sends and receives Morse over virtual channels, and it can listen to multiple senders transmitting on the same channel. Morse code is keyed locally using a straight or iambic key connected to a serial port, or using the mouse buttons, and sound plays through the sound card, or through an external sounder.

Castopod: Decentralized podcast hosting software to run on your own server.

CenterICQ: Centericq is a text mode menu- and window-driven IM interface that supports the ICQ2000, Yahoo!, AIM, IRC, MSN, Gadu-Gadu and Jabber protocols.

Chaosircd: 'chaosircd' is an IRC daemon with commands, channel modes, user modes, and flood control implemented as runtime (re)loadable modules. DNS and AUTH (ident) queries are done in a single child process so as to not waste valuable file descriptors and responsiveness. It also features a server-server protocol using timestamps for netsplit handling similar to TS5 (hybrid), and OpenSSL encrypted server-server and client-server connections.

ChatRelater

Chat Relater is a tool consisting of two command-line scripts:

The analyzer extracts user relations from chat logs. The gained data is serialized as YAML.
The visualizer takes that data and utilizes GraphViz to create a graph.

Chirpy!: Chirpy! is an online quote management system. It allows you to keep a database of quotes by friends and foes. It is most useful for quotes collected on IRC channels. Both the default Web frontend and MySQL backend can be replaced at will.

Choqok: Choqok is a Free, fast, efficient and simple to use micro-blogging client for K Desktop Environment. The name comes from an ancient Persian word and means Sparrow! Currently, Choqok support Twitter.com and Identi.ca micro-blogging services.

Chupacabra: Chupacabra is an IRC bot that aims to be small, fast and reliable. It's meant for channel administration on any IRC network, and currently supports kick, auto-op, topic, and more.

Circe

Circe is an IRC client for Emacs. It integrates well with the rest of the editor, using standard Emacs key bindings and indicating activity in channels in the status bar so it stays out of your way unless you want to use it. Features include:

Per-query and per-channel buffers
Auto-query buffers/windows (even on /MSG)*Nick-highlighting*An extensible ignore*Automatic splitting at word boundaries of long lines to be sent
Flood protection
Per-server (not per-channel) separate encoding and decoding coding systems; an Emacs feature even allows the client to transparently work with multiple encodings, such as when both Latin-1 and UTF-8 are used on a channel*Auto-join
NickServ-support
Netsplit handling

Classified-ads: "Classified ads" is messaging system for exchange of private and public messages between humans, and maybe other primates. Features of the program include, but are not limited to: * Sending and retrieving messages public and private, between humans or inside groups * No need for server-side support of any kind * Minimal hassle for the end-user * No need for contracts with any service-operators, not counting your ISP * Identification of message senders while allowing some withdrawal of personal details * Text-based search of public posting

Coccinella: Coccinella is a Jabber client with a whiteboard. The whiteboard is a shared desktop which supports text, drawings, images, and multimedia in a number of formats, such as MP3 and video. It runs in two modes: a peer-to-peer configuration and a mode compatible with the Jabber Instant Messaging system. A flexible plugin architecture support additional formats.

Codeigniter4CMS ,: web content management system

Collab: Multiplatform raster graphical editor enabling simultaneous drawing between users. Project including several sub projects as server, painting framework, network library, desktop application and protocol design and documentation.

Conversations.im: Conversations is a Jabber/XMPP client for Android 5.0+ smartphones that has been optimized to provide a unique mobile experience. A port to iOS is envisaged in the medium-term future. Conversations allows you to easily send images, show if your contact has received and read your message, permit dynamic history and handles multiple devices (especially sync with desktop clients), allow you to create group chats and support one-to-one Audio/Video calls ! And thanks to the XMPP Protocol (that is a push protocol) you battery life is safe. Conversations also does not require a Google Account or specifically Google Cloud Messaging (GCM). Using the XMPP federated protocol, you can freely choose a trustworthy server (your own if you want) for yourself while still chatting with contacts that are using other servers. The communication between Conversations and the XMPP server as well as the communication between the individual servers is TLS encrypted. This way, not only your messages are safe but more importantly it is impossible for an outside attacker to intercept your meta data (with whom you are chatting) without attacking your server first. On top of that, Conversations gives you the choice to enable one of two end-to-end encryption mechanisms. The first one is OMEMO, a state of the art multi-end-to-multi-end encryption method which is very easy to setup and gives you forward secrecy and plausible deniability. For backwards compatibility reasons Conversations also supports OpenPGP.

CryptPad: CryptPad is a libre and encrypted collaboration suite that can be used for forms, presentations and other collaborative documents.

Ctrlproxy: 'ctrlproxy' is an IRC server with multiserver support. It runs as a daemon and connects to a number of IRC servers, then lets you to connect from a workstation and work as the user who is logged in to the IRC server. After you disconnect, it maintains the connection to the server. It acts like any normal IRC server, so you can use any IRC client to connect to it. It supports multiple client connections to one IRC server (under the same nick), so you can connect to IRC using your IRC nick, even if you have an IRC session open somewhere else. It supports logging (in the same format as the irssi IRC client), password authentication, and ctcp (in case no clients are connected).

CubicSDR: CubicSDR "allows you to navigate the radio spectrum and demodulate any signals you might discover" utilizing a modular 'piping' architecture that simplifies real-time analysis of discovered signals. CubicSDR creates live "waterfall" visual graphs representing a spectrum bandwidth and associated signal intensity.

Delta Chat: Delta Chat is a project that aims to create a messaging app that is completely compatible to the existing email-infrastructure. So, with Delta Chat you get the ease of well-known messengers with the reach of email. Moreover, you’re independent from other companies or services - as your data are not related to Delta Chat, you won’t even add new dependencies here.

Dhlan: dhlan scans and updates to /etc/hosts with a MAC:name table. It's the most simple and easy replacement of DNS server, to customize named localization of computers, printers or any other device accross any Local Area Network. For example, 2 laptops can maintain valid name-to-ip although network changes.

Diaspora: Diaspora is a decentralized social network (composed by many servers which interact with each other, the servers are called pods).

Dino (instant messenger): Dino is a modern open-source chat client for the desktop. It focuses on providing a clean and reliable Jabber/XMPP experience while having your privacy in mind. It supports end-to-end encryption with OMEMO and OpenPGP and allows configuring privacy-related features such as read receipts and typing notifications. Dino fetches history from the server and synchronizes messages with other devices.

Dircproxy: 'dircproxy' is an IRC proxy server ("bouncer") for people who use IRC from lots of different workstations or clients, but wish to remain connected and see what they missed while they were away. Users connect to IRC through dircproxy, and remain connected to the server, even after a client is detached from it. While they're detached, 'dircproxy' logs channel and private messages as well as important events; when users reattach it downloads those logs to you using ordinary IRC protocol.

Dreamwidth: Social media/blogging website software, forked from LiveJournal several years ago

Dungeon-mode: Dungeon-mode is a game engine and REPL for creating and playing multi-user dungeons written primarily in emacs lisp. While playing a game created with dungeon-mode doesn’t necessarily require Emacs authoring game environments (e.g. worlds) does, as do assigning special powers, resolving Ghod calls, Sage encounters, and Ubic -if enabled- or any other or custom events with a dm-intractable property set to a non-nil value. Dungeon Masters may specify delegation rosters to support cooperative oversight and enable teams to direct the play experience.

EF*CK Chat Keyboard: EF*CK is a free cross-platform open-source on-screen desktop emoji keyboard, with built-in text-filter-based emoji picker, Unicode text converter, meme GIF search function ... Upon emoji/text activation, the app automatically types it into the previously focused window, or copies it into system clipboard. Written in Python/Qt and extensible.

EXo Platform: eXo Platform is an open-source digital workplace platform. Full-featured and user-centered, the solution enables a variety of use cases around internal communications, employee engagement, knowledge management and digital collaboration.

Eggdrop: Eggdrop is an IRC bot. It sits on a channel and takes protective measures to keep the channel from being taken over (in the few ways that anything can), to recognize banished users or sites and reject them, to recognize privileged users and let them gain ops, etc. You access your shell acount with a username and password, via a telnet connection or ftp; you then find yourself at a command prompt where you can execute various programs, manipulate files and check email. You upload your personal files (ie webpages or graphics) via FTP.

Ejabberd: 'ejabberd' is a multi-platform, scalable, distributed, and fault-tolerant XMPP Jabber server. It supports advanced features such as multi-user chat, IRC transport, publish and subscribe services, Jabber user directory, a Web-based administration interface, an HTTP polling service, SSL and TLS support, LDAP and external authentication.

Ekiga: Ekiga (formely known as GnomeMeeting) is a SoftPhone, Video Conferencing and Instant Messenger application over the Internet. It supports HD sound quality and video up to DVD size and quality. It is interoperable with many other standard compliant software, hardware and service providers as it uses both the major telephony standards (SIP and H.323).

Element Desktop: Element Desktop is a chat platform using Matrix.

Empathy: Empathy is a messaging program which supports text, voice, and video chat and file transfers over many different protocols, including Jabber (xmpp). You can tell it about your accounts on all those services and do all your chatting within one application. Empathy uses Telepathy for protocol support and has a user interface based on Gossip. Empathy is the default chat client in current versions of GNOME, making it easier for other GNOME applications to integrate collaboration functionality using Telepathy.

EnergyMech: The EnergyMech is an advanced IRC bot. It has many features including a DCC party line, powerful user list handling, a telnet console, bot linking, and more.

Epicyon: ActivityPub compliant server, designed for simplicity and accessibility. Includes calendar, news and sharing economy features to empower your federated community.

Erc ,: ERC is a powerful, modular, and extensible IRC client for Emacs. It is distributed with the latest release of Emacs but also on GNU ELPA. It supports multiple channels and multiple servers, private message separation, highlighting, notification, channel tracking, nick completion, history, multiple languages, user scripting and auto reconnect. This package is no longer developed as a separate project.

Ethereal Realms 2: Ethereal Realms is a web-based chat and role-playing system based loosely on WBS and IFC (both now defunct). Utilizing Perl/mod_perl and MySQL, this system emulates WBS (Streaming, Framed and Basic chat) with certain improvements and refinements made over the course of its development, but removes the need for Javascript and cookies.

Eva: 'Eva' is an IM client in KDE that uses QQ IMprotocol to communicate with other clients Gaim with OpenQ plugin or LumaQQ written in Java.

Farstream: The Farstream (formerly Farsight2) project is an effort to create a framework to deal with all known audio/video conferencing protocols. On one side it offers a generic API that makes it possible to write plugins for different streaming protocols, on the other side it offers an API for clients to use those plugins. This package provides Python bindings for Farstream.

FeedCreator: FeedCreator is a PHP class that provides an easy way to create RSS feeds from within PHP. RSS 0.91, 1.0, and 2.0 are supported; users can decide which version to create at runtime. This package was formerly known as 'RSSCreator.'

Feedback Cat: Feedback Cat is a 100% free and open-source WordPress plugin to survey your users and customers. Set it up in 2 minutes.

Festival Gaim: Gaim plugin which enable you hear your incoming messages using voice synthesis.

Firestr: Fire★ is a a simple platform for decentralized communication and computation. Provides a simple application platform for developing p2p applications and share these applications with others in a chat like user interface. You don't send a message to someone, you send an program, which can have rich content. All programs are wired up together automatically providing distributed communication, either through text, images, or games. The source code to all applications is available immediately to instantly clone and modify.

FluffyChat: FluffyChat - Chat with your friends The greatest FluffyChat features: Opensource and open development where everyone can join. Nonprofit - FluffyChat is donation funded. Cute design and many theme settings including a dark mode. Unlimited groups and direct chats. FluffyChat is made as simple to use as possible. Free to use for everyone without ads. There is no "FluffyChat server" you are forced to use. Use the server you find trustworthy or host your own. Compatible with Element, Fractal, Nheko and all matrix messengers.

Fractal: Fractal is an instant messaging client and collaboration software for the GNOME desktop based on the Matrix protocol.

Freetalk: Freetalk is a command-line Jabber/XMPP chat client. It notably uses the Readline library to handle input, so it features convenient navigation of text as well as tab-completion of buddy names, commands and English words. It is also scriptable and extensible via Guile.

Friendica: Friendica is a communications platform for integrated social communications utilising decentralised communications and linkage to several indie social projects - as well as popular mainstream providers.

GUJ Chat: GujChat is a chat server management system which can manage different chat servers, each one serving different rooms. A single GujChat installation is capable of serving diverse Webmasters with different templates, rooms and configurations. It is particularly useful for webmasters who are looking for a chat room or a chat server and service providers who offer chat servers to their clients. GujChat is completely multi-lingual and can be installed under any Servlet API 2.2 (or newer) compliant servlet container.

Gabber: Gabber is a Jabber client for GNOME. Jabber is a flexible distributed free software instant messaging system. It also happens to allow communication with other instant messaging systems, such as ICQ, AIM, Yahoo!, MSN, and even IRC.

Gaim-e: 'gaim-e' is an encryption plugin for gaim. It uses GNUPG (GPG) to securely transfer the session key (RC5). It currently works with AOL, MSN, and Yahoo. Other protocols supported by gaim have not yet been tested.

Gajim: Gajim is a Jabber/XMPP client written in PyGTK. Gajim works nicely with GNOME, but does not require it to run.

Galaxium Messenger: Galaxium is a MSN instant messenger service client that runs on GTK+ 2.6 or later. Built primarily for the GNOME environment on GNU/Linux. It was originally written by Adam Peck and Philippe Durand, students of the Southern Alberta Institute of Technology.
Currently is in early development stages and is current only a chat client. You cannot transfer files or have video/audio conversations. We do encourage you to try it and comment on the application interface and features. Stay up to date as things are moving towards adding these features at a steady pace.

Gale: Gale is a messaging system resembling Zephyr in UI and social characteristics, but IRC in architecture, with some features of its own. It supports the use of public-key cryptography for privacy and authentication. It has a spanning-tree topology with failover, little server state, no concept of "op privileges", security through end-to-end encryption, multi-line messages, and command-line-driven clients, and directed categories, which prevents unnecessary distribution of messages. See Fugu, a graphical client for Gale: http://fugu.gale.org/

Galene: A videoconferencing server that is easy to deploy, easy to administer, and requires moderate server resources. A web client is included.

Gamja: gamja is an IRC web client. It can work together with soju.

Gicq: 'gicq' is an ICQ-compatible instant messaging client for Unix systems. It is based on the GTK toolkit. At the present time, the feature list is rather short. However, the most important stuff works - you can log on with an existing ICQ account, search for other users and add them to your contact list, and send and receive messages. 'gicq' uses libicq, which does most of the work.

Gm: GNU Messenger is a messaging system that attempts to keep your conversations private from everyone except the intended recipient. It is compatible with existing IM networks and lets you to communicate with other GM users even when you're not using a native server. Features include autoconf support, interoperability with other popular IM networks, separate frontend and backend (which makes it easy to write new clients, a buddy list, and taskbar docking.

Gnome ICU: GnomeICU (formerly GtkICQ) is an Internet Communication Utility for Gnome. It is based on the ICQ protocol, and may be used to communicate with any other GnomeICU or ICQ users, either in GNU/Linux or whatever other OS your friends feel like using.

Gnome IP Messenger: Gnome IP Messenger (GIPMSG) is WinPopup-like communication tool that works over TCP/IP. GIPMSG is a complete GNOME/GTK+ program, with full GNOME applet support. Using GIPMSG is easier than e-mail and requires little setup.

Gnome-gossip: Gossip is an instant messaging client for Gnome. Its goal is to make instant messaging as easy as possible, while giving users of the GNOME desktop a user-friendly way of keeping in touch with their friends. The package has been translated in to thirteen languages.

GnuGadu2: GNU Gadu 2 is a modular instant messaging client with a GUI written in GTK2. It currently supports Gadu-Gadu, Tlen.pl, and Jabber. It is able to load Perl scripts, dock in several window managers, play sounds, talk to other programs via a UNIX socket, send SMS messages to Polish GSM operators, automatically check for updates, and use XOSD for displaying notices.

Gnufm: GNU FM is a piece of software you can install on your own web server, to run a music community site, similar to Libre.fm or Last.fm. You can use it for your family, your business, your band, or just for yourself.

Gnuradio: GNU Radio is a development toolkit that provides signal processing blocks to implement software radios. It can be used with external RF hardware to create software-defined radios, or without hardware in a simulation-like environment. It is widely used in research, industry, academia, government, and hobbyist environments to support both wireless communications research and real-world radio systems.

Gofoss.net: gofoss.net is a beginners guide to free software, privacy, data ownership and durable tech. Learn how to: safely browse the Internet; keep your conversations private; protect your data; unlock your computer's full potential; stay mobile and free; own your cloud; avoid filter bubbles, surveillance & censorship.

Gossip-nostr-client: Gossip is a GUI client that allows users to post microblogs, follow other users, and host private chats using Nostr. It is very snappy and performant as it is written in Rust. It is highly configurable; there are 64 configuration options. Unlike other Nostr clients, Gossip strives to avoid web browser technologies like JavaScript to reduce bloat.

Gtmess: gtmess is a console MSN Messenger client for GNU/Linux and other systems that conform to the POSIX standard. It supports the MSNP9 protocol version. Apart from the basic stuff like file transfers and chat windows, it offers some advanced features like message logging, contact list cleanup, spoofing the typing user (on some clients), and a popup notifier (via Tcl/Tk). It is UTF-8 compliant.

Guifications: 'Guifications' is a Gaim plugin that adds notification windows styled after those found in deadaim, and newer versions of AIM, Yahoo instant messenger, and many other applications.

Guile-toxcore: Guile-toxcore provides high level Scheme bindings for the Tox protocol library, libtoxcore.

Gumnut: Gumnut is a moderated, distributed, discussion forum that may be used by groups of people to find an agreed positive direction for any decisions that affect that group. Each group may be of any size and associated by geography, common interest, or both.

Gyach Enhanced: GYach Enhanced is a feature-rich, improved version of the original Gyach. It is a Yahoo! client for GNU/Linux with voice chat capabilities. It offers almost all of the features you would expect to find in the official Windows Yahoo! client. The program offers support for chat, conferences, buddy lists, and My Yahoo content. In addition, Gyach Enhanced offers many features not available in the official Yahoo! client. Unlike the original Gyach, GYach Enhanced is designed for GNU/Linux only.

Hashover: A flexible and rich comment system with many advanced features. As it can work without a database, storing the comments in a simple file hierarchy in JSON, XML and using SQLite, it's really adequate for limited hosts, which may not support relational database management systems. These are some of its features: supports threaded replies, theme customization, HTML and Markdown editing, multiple comment sorting methods, likes and dislikes, comment layout templates, spam filtering, notification emails, multiple languages, file format plugins, comment RSS feeds, automatic URL links, authentication plugins, referrer checking, administration, avatar icons, displaying remote images, ip address blocking, comment permalinks, avatar icons, IP address blocking.

HexChat

HexChat is an IRC client based on XChat 2, featuring:

Easy to use and customizable interface
Cross-platform on Windows, OS X, and Unix-like OSes
Highly scriptable with Python and Perl
Translated in multiple languages
Multi-network with auto-connect, join, and identify
Spellcheck, proxies, SASL, DCC support and more

Hipercontracer: High-Performance Connectivity Tracer (HiPerConTracer) is a ping/traceroute service. It performs regular ping and traceroute runs among sites and can export the results into an SQL or Non-SQL database.

Hybridbot: This bot acts as a normal user inside both a IRC channel and a XMPP MUC room, and relays/resends the messages received in one end to the other automatically.

Ignorance: Ignorance is a flexible, powerful content filtering plugin for Gaim.

Ii: ii is a minimalist FIFO and filesystem-based IRC client. It creates an irc directory tree with server, channel and nick name directories. In every directory a FIFO in file and a normal out file is created. The in file is used to communicate with the servers and the out files contain the server messages. For every channel and every nick name there are related in and out files created. This allows IRC communication from the command line. Join a channel as follows: $ echo "/j #wmii" > in and ii creates a new #wmii (channel) directory with in and out files.

Ikiwiki: Ikiwiki converts a directory full of wiki pages into HTML pages suitable for publishing on a website. Unlike many wikis, ikiwiki does not have its own ad-hoc means of storing page history, and instead uses a revision control system such as Subversion or Git. Ikiwiki implements all of the other standard features of a wiki, including web-based page editing, user registration and logins, a RecentChanges page, BackLinks, search, Discussion pages, tags, smart merging and conflict resolution, and page locking. Ikiwiki also supports generating news feeds (RSS and Atom) and blogging. Ikiwiki provides a plugin system which allows many other features to be added. Some of the plugins have additional dependencies, found among the Recommends and Suggests of this package.

Irc: This library is intended to encapsulate the IRC protocol at a quite low level. It provides an event-driven IRC client framework. It has a fairly thorough support for the basic IRC protocol, CTCP and DCC connections.

Irc-Scroller: This is a candidate for deletion: Links broken. No archive.org entry. Email to maintainer broken. Poppy-one (talk) 09:24, 13 August 2018 (EDT) IrcScroller is a Web script that parses different IRC log formats, and dynamically displays them as Web pages, updating almost in real time. The log formats used by eggdrop, mirc, irssi, and a custom database are currently supported.

Ircxy: IRCXY IRCv4 Implementation

Irssi: Irssi is a modular, command-line IRC client.

IrssiBot: Links broken. Email to maintainer broken. Changed homepage to archive.org link. Poppy-one (talk) 12:02, 6 August 2018 (EDT) IrssiBot is an IRC bot with support for being on multiple IRC networks at once, as well as almost unlimited extendability via a very flexible module API. The compiled Java classes that implement this can be loaded and unloaded at run-time. Due to its multithread model, the memory/CPU strain is very low. Also, since it was written with the end user in mind, and it is easy to install and configure. Configuration and the user files are in XML.

Jami ,: GNU Jami (formerly SFLphone, GNU Ring) is a universal and distributed communication platform, implemented as free (libre) software, which respects the freedoms and privacy of users. Aimed at the general public as well as professionals, Jami provides all its users a universal communication tool, autonomous, libre, secure and built on a distributed architecture thus requiring no authority or central server to function. GNU Jami satisfies a high priority software goal of the Free Software Foundation, responding to the challenges of privacy on the Internet. Developed by Savoir-faire Linux, Jami takes advantage of an active development community thanks to the support of young Google Summer of Code developers as well as research partnerships with Polytechnique Montréal and the Université du Québec à Montréal.

Janus internetwork channel linker: Janus is a server that allows IRC networks to share certain channels to other linked networks without needing to share all channels and make all users visible across both networks. If configured to allow it, users can also share their own channels across any linked network.

Jitsi: Jitsi Desktop, formerly known as the SIP Communicator and briefly known as just Jitsi, is a VoIP and instant messaging application that supports protocols such as SIP, XMPP/Jabber, AIM/ICQ and IRC. It can handle every firewall, and has many other useful features. This package is maintained by the community. Video conferencing capabilities evolved out of this original project and are maintained by the Jitsi team under 8×8 which acquires the whole Jitsi Technology in 2018. So the said Jitsi can also refers to a set of free software projects including Jitsi-Meet and Jitsi-Videobridge. More information at https://jitsi.org/

Jitsi-Meet

More secure, more flexible, and completely free video conferencing. Go ahead, video chat with the whole team. In fact, invite everyone you know. Jitsi Meet is a fully encrypted, 100% open source video conferencing solution that you can use all day, every day, for free — with no account needed. What else can you do with Jitsi Meet?

Community contact

Share your desktop, presentations, and more Invite users to a conference via a simple, custom URL Edit documents together using Etherpad Pick fun meeting URLs for every meeting

Trade messages and emojis while you video conference, with integrated chat.

Jitsi-Videobridge: Build massively scalable multiparty video applications Stop mixing video channels and start using Jitsi Videobridge instead. It’s a Selective Forwarding Unit (SFU) designed to run thousands of video streams from a single server — and it’s fully free software and WebRTC compatible.

JsChat

JsChat is a chat system. It has an easy to learn JSON protocol, an ncurses client, a web app, and a server. You can try it right now on jschat.org. JsChat is similar to IRC, but itÃ¢â¬â¢s a fundamentally simpler system. The web app has lots of interesting features:

IRC-like commands: /names, /name new_name (/nick works too), /clear, /lastlog
ItÃ¢â¬â¢s pretty tiny; itÃ¢â¬â¢s built with Sinatra and Prototype
Auto-linking: pasting an image displays it inline, youtube and vimeo videos will appear as well
Last messages are displayed on join: the last 100 messages are displayed, so you donÃ¢â¬â¢t feel lost when you join a room
Tab completion!

KChat: kChat is a chat system with a server-side moderated mode. A client and server are included. It is currently working with its own protocol, so it is not possible to connect with other clients (such as IRC).

KVirc: 'KVirc' includes multiple chat-windows, a themeable GUI, a builtin help browser, activity notification, support for proxy servers and SSL connections, the abiltiy of connecting to multiple servers, a database of registered users and comprehensive scripting support. It has been translated into 14 languages. It can use KDE but does not depend on it.

Kaim: Kaim is an AOL Instant messenger client using the QT public library. Due to legal problems, this package has been renamed 'kinkatta.' Please see that entry for the most recent version of the software.

Kinkatta: Kinkatta is an AOL instant messenger for KDE. Kinkatta contains all common instant messenger features such as logging, aliases, chat rooms, proxys, auto-away, pounce, last on, idle, per-buddy audio configuration, and complete chat window configuration. It was formerly known as 'kaim.'

Kirc: Kirc is a lightweight, terminal/console IRC client. It is designed to be compatible with all POSIX-compliant operating systems (including GNU/Linux). Kirc has no dependencies, only requiring a C99 compiler (such as GCC) and POSIX C header files to be built. Instead of having commands specific to itself, Kirc allows users to send raw IRC commands to the server it is connected to. Kirc has basic Emacs-style keybindings for text entry. Whilst mostly minimalistic in nature, Kirc has features such as chat history logging, terminal colours and SASL authentication. Kirc does not support TLS encryption; the developer suggests using a program like Stunnel or Socat to encapsulate the IRC connection within an encrypted 'tunnel'.

KiwiIRC: KiwiIRC makes Web IRC easy. A hand-crafted IRC client that you can enjoy. Designed to be used easily and freely.

Known: Known is an open, flexible social publishing platform. Publish in a group or as an individual with a variety of media, from blog posts and photographs to files and points on a map. Each post can be private or public; every Known site as a whole can be private or public. It works on any device, from the biggest, strongest desktop to the most entry-level smartphone, as long as it comes with a web browser. Known supports IndieWeb technologies, allowing users to post and receive comments from other social websites.

Kommuni-K: Kommuni-K is a complete communication system. It gathers many funtions into one single modularized client/server system: instant messaging (ICQ-like), chatrooms, global file sharing (Napster-like), bookmark sharing, a GUI to Netsoul, and a full featured mail client.

Kontalk: Kontalk is a free software, secure and distributed instant messaging driven by the community. Kontalk protocol is based on XMPP with end-to-end encryption in both server-to-server and server-to-client. Kontalks is basically for phone, but it's also available for desktop now (GNU/Linux, Windows, and macOS).

Kopete: Kopete is a multiple protocol instant messaging system designed as a plugin-based system. All protocols are plugins and allow modular installation, configuration, and usage without the main application knowing anything about the plugin being loaded. Kopete's goal is to provide users with a standard, simple interface between all of their instant messaging systems, while also giving developers an easy wasy to write plugins to support a new protocol. The core Kopete development team provides a handful of plugins that most users can use and templates for new developers to base a plugin on.

Kunjika: This is a web-basd Q&A framework similar to StackOverflow. It uses the Python Flask framework, Couchbase for database, and Memcached functionality.

Laconica: Laconica (pronounced "luh-KAWN-ih-kuh") is a microblogging platform. It helps people in a community, company or group to exchange short (140 character) messages over the Web. Users can choose which people to "follow" and receive only their friends' or colleagues' status messages. It provides a similar service to sites like Twitter, Jaiku, and Plurk.

Laffer: Laffer is a Web-based instant messenger client. It supports ICQ, MSN, AOL, Yahoo, Jabber, and other messenger networks. Laffer is written in HTML and JavaScript, and it uses DOM 1.2 and PHP. Laffer is capable of exchanging text messages, contact list visualization, presence status visualization, and getting information about the user. No file, audio, or video exchange is supported at the moment.

Libav: Libav is a complete, cross-platform solution to decode, encode, record, convert and stream audio and video. This package contains the avplay multimedia player, the avserver streaming server, the avconv audio and video encoder, and the avprobe stream analyzer. They support most existing file formats (AVI, MPEG, OGG, Matroska, ASF...) and encoding formats (MPEG, DivX, MPEG4, AC3, DV...). Additionally, it contains the qt-faststart utility which rearranges Quicktime files to facilitate network streaming. This package also serves as a replacement for the former 'ffmpeg' package.

Libertree: Libertree allows users to create their own social network; it is implemented as an XMPP component and a web application.

LibreOffice: LibreOffice is a comprehensive office suite. It contains a number of components: Writer, a word processor; Calc, a spreadsheet application; Impress, a presentation engine; Draw, a drawing and flowcharting application; Base, a database and database frontend; Math for editing mathematics. There are also a good and growing number of free software extensions and templates available. LibreOffice is a fork of OpenOffice.org, which is now called Apache OpenOffice. Because Apache OpenOffice hosts and recommends using proprietary extensions, we do not recommend using it.

Libreserver: Self-hosting server, based on Debian stable

Librevideojs: LibreVideoJS is a video player written in JavaScript compatible with LibreJS. It is based in VideoJS.

Librevideojs-wp: Free and responsive HTML 5 video player for Wordpress. It is very easy to use and has support for multiple resolutions and subtitles.

Licq: Licq is a multi-threaded ICQ clone that includes all of ICQ's basic features: sending/receiving messages, chat, file transfer, contact list with pixmaps and user status, basic/extended user info, adding/editing users from within the GUI, user history, user groups, and new user registration. All commands and information are available through a simple and convenient tab dialog. It also has a completely configurable user interface with Skin and Icon pack support, and an extensive plugin system to manage many different functions.

Licq-osd: The licq-osd plugin enables licq to display new messages as an On Screen Display message.

Linphone: Linphone is an Internet phone or Voice Over IP phone (VoIP). It lets you make two-party phone calls using the Internet.

LiveJournal: This is the code that runs the popular LiveJournal.com journal site; the SQL to create and populate all the tables is included. The code that runs the various clients is also available from the site.

Lume: Lume is a desktop Nostr client. It allows for users to create multiple columns, each one for different feeds of posts, listings of users, etc. Lume easily walks users through the technical Nostr details such as adding relays and setting up a keypair, so it is great for new users. By default, the Lume GUI looks similar to Twitter/X. Unlike Twitter, though, Nostr is a Free and extensible protocol.

Mastodon: An ActivityPub microblogging server application. Includes content warnings for marking sensitive discussions.

Mattermost: Mattermost is a free software team communication service. It brings team messaging and file sharing into one place, accessible across PCs and phones, with archiving and search.

Mbot: 'mbot' is an IRC bot whose main advantage is that several bots can run simultaneously in the same process. This makes it ideal for shells where the background processes, but not the connections, are limited. It also features IPv6 support, TCL scripting partially compatible with eggdrop, and other modules with the most commonly needed functions.

Meeting Request Scheduling & Booking System: MRSBS is a system for coordinating the scheduling of meetings. MRSBS allows a person to schedule a meeting with people who are not on the same (or any) calendaring system. The meeting host (or the host's delegate) prepares an invitation, specifying required and optional attendees, information about the meeting topic and duration, potential time slots, and potential locations. The invitation is sent to the invitees via email, the invitees reply via a web page with their availability. Once all replies have been received, MRSBS selects the best available time. Invitees are then notified with an RFC 2445 compliant iCalendar notification.

Miau: 'miau' is a small, fully featured IRC bouncer. Features include so-called quicklogging, logging, auto-opping, and dcc-bouncing. Most features can be enabled/disabled with a configure script. 'miau' offers a service a bit like HTTP-proxy, but for IRC networks. The difference is that when IRC-client disconnects from bouncer, the connection to the server isn't necessarily lost, so your nick can stay online and cannot be taken by the others. In case bouncer does loses the nick, it can try to get it back automatically. Also, when using bouncer, the hostname appearing in IRC is that of the machine the bouncer is running at, not the one you are IRCing from.

Microblogger: MicroBlogger is a small, simple, flexible, secure, and reliable weblog engine written entirely in Bash. It is designed to be a deploy-in-place weblog solution, with no dependencies--no PHP, no SQL, no CGI, no JavaScript, no Perl, nothing. It is self-regulating, self-maintaining, and ready to fly straight out of the box.

Mirror Island: Mirror Island is an adaptive network that changes its behaviour depending on the content being displayed and leverages the semantic web to make this possible. Target uses range from everyday note taking and communications including photo and video sharing, to ecommerce and resource management features. It has multiple network-enabled components including a multimedia player, file manager, and text editor, although the website itself, mirrorisland.com is the web front-end of this network. Features a visual editor that allows photos and files to be attached like an email, but publicly visible.

Mitter: Mitter is a client for Twitter. Currently, you can use it on multiple platforms and on a console/terminal.

Mobilizon: Mobilizon is a federated system for organizing events developed by French non-profit Framasoft. It features the ability to create multiple profiles per account for increased privacy, as well as tools for co-ordinating events both with the general public (which allow participation without an account) and among organizers using "groups". However, it aims to be just "a tool", and rejects "features like subscriptions counters, thumbs ups or info walls with infinite scrolling". The ActivityPub protocol is used for federation.

Monero Core: Monero Core consists of several applications, including bitmonerod (the daemon used if running a full node, as it maintains the connection to the Monero network) and simplewallet (a Monero account manager application), as well as several other helper applications.

MongooseIM: MongooseIM is aimed at large, complex enterprise level projects where real-time communication is critical for business success. It provides high availability, ease of deployment, development and reliability in production. The MongooseIM platform includes server-side components and client libraries. It has also contributed to open source third party XMPP libraries: Smack for Android and XMPP framework for iOS. Built around proven technologies XMPP/Jabber, it adds a simple client/server REST API for front-end and back-end integration.

Monica Personal CRM: Monica is a free software web application to organize the interactions with your loved ones. We call it a PRM, or Personal Relationship Management. Think of it as a CRM (a popular tool used by sales teams in the corporate world) for your friends or family. Monica allows people to keep track of everything that's important about their friends and family. Like the activities done with them. When you last called someone. What you talked about. It will help you remember the name and the age of the kids. It can also remind you to call someone you haven't talked to in a while.

More Speech: Desktop application that shows if replies to or from a Twitter user are being censored. Check your replies to see if you're being censored (a "shadowban"). Check replies to a newsmaker to see how heavily Twitter censors replies to them. The application uses browser automation to surf Twitter like a real user would, and writes HTML reports showing which tweets were censored. Note: despite claims to the contrary, Twitter heavily censors all kinds of users. They don't limit it to just one group.

Movim: Movim (My Open Virtual Identity Manager) is a distributed social network built on top of XMPP. It can be accessed using existing XMPP clients and Jabber accounts. Movim is a distributed social networking platform. It builds an abstraction layer for communication and data management while leveraging the strength of the underlying XMPP protocol. XMPP is a widely used open standards communication platform. Using XMPP allows the service to interface with existing XMPP clients like Conversations, Pidgin, Xabber and Jappix. Users can directly login to Movim using their existing Jabber account. Movim addresses the privacy concerns related to centralized social networks by allowing users set up their own server (or "pod") to host content; pods can then interact to share status updates, photographs, and other social data. Users can export their data to other pods or offline allowing for greater flexibility. It allows its users to host their data with a traditional web host, a cloud-based host, an ISP, or a friend. The framework, which is being built on PHP, is a free software and can be experimented with by external developers. Movim supports OMEMO, group chats (public and private, with or without password) with reactions, stickers and GIFs, it supports also screen-sharing, VOIP (1 to 1) and microblogging.

Mumble: Mumble is a voice chat program. There are two modules in Mumble: the client (Mumble) and the server (Murmur). It provides encrypted, low-latency voice chat. Supports group conferences, for talking amongst friends: has a mute/deafen feature, also supports textchat. A suitable free software replacement for Google Hangout, Skype, Ventrillo, TeamSpeak and many more.

Naim: 'naim' is the original ncurses AIM client. It uses the TOC protocol, and features many commonly-requested features found nowhere else, while still preserving naim's classic look and feel. The original 0.9 series is still available (using the Oscar protocol), and will be kept up-to-date in terms of new features as time permits.

Nanoblogger: NanoBlogger is a small Weblog engine that is written in bash and makes use of some common UNIX tools, such as cat, grep, and sed. It creates static HTML content and features a slick command line interface, templates and CSS style sheets, plugins, permalinks, and archiving by category, entry, and month. It's intended to be modular and flexible in design and easy to integrate into existing Web sites. There's no need for any JavaScript, server-side scripting, server-side includes, or database.

Netclasses: Netclasses is an asynchronous networking library that works on OS X natively, and any of the multitude of platforms supported by GNUstep. You've never seen an easier way to put together network applications! It has built-in support for line-based protocols, IRC, and raw TCP/IP streams.

Netperfmeter: NetPerfMeter is a network performance meter for the UDP, TCP, MPTCP, SCTP and DCCP transport protocols over IPv4 and IPv6. It simultaneously transmits bidirectional flows to an endpoint and measures the resulting flow bandwidths and QoS. The results are written as vector and scalar files. The vector files can e.g. be used to create plots of the results.

NewsBruiser: NewsBruiser is a Weblog application with fully Web-based setup and configuration. It features multiple notebooks, categories, syndication, import from other tools, themes, and a simple templating system.

Nextcloud: Nextcloud is a free, decentralized and open cloud platform. It allows you to sync your files, calendars and contacts while staying in control of your data. As a platform you can extend it with many existing apps or write your own. With federated sharing, Nextcloud allows you to collaborate with people across different Nextcloud installations. Nextcloud also provides real-time communication through Spreed.me and collaborative editing through LibreOffice Online integration.

NgIRCd: ngIRCd is a free, portable and lightweight Internet Relay Chat server for small or private networks, developed under the GNU General Public License (GPL). The server is quite easy to configure, can handle dynamic IP addresses, and optionally supports IDENT, IPv6 connections, SSL-protected links, and PAM for user authentication as well as character set conversion for legacy clients. The server has been written from scratch and is not based on the "forefather", the daemon of the IRCNet. The name ngIRCd means next-generation IRC daemon, which is a little bit exaggerated: lightweight Internet Relay Chat server most probably would have been a better name :-)

Node.js: Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient. Node.js' package ecosystem, npm, is the largest ecosystem of libraries in the world.

Odoo: Odoo (previously OpenERP) is a suite of programs that help companies to grow their business. Over 2 million people use Odoo to grow their sales, run their operations, organize marketing activities, boost productivity and empower their human resources. Odoo is used worldwide and provides complete software solution from front office to back office.

OneModel: Today: You can take notes with it. Rearrange them easily, up and down in a list, or up/down in the hierarchy. Link them to each other. Navigate across links with simple keypresses. Make deeply nested lists. Link lists to lists. Compose long paragraphs and attach them. Or do more complicated things if desired, by creating relationship types and using those. Import txt or export txt or html. It's better than the alternatives for some people, because the navigation takes fewer keystrokes, you don't have to read a manual (it's all on the screen, or so I like to think), you can have the same thing in as many places as you want, it is Free (some alternatives are, others are not), and it has immense future potential for becoming a better-structured, much more powerful and flexible wikipedia-like tool, if we work together. Vision: The idea is to have the most efficient personal knowledge organizer (now available in a usable text-based interface), then support mobile access, easy internal automation, and effective sharing and collaboration. Then, to combine efforts and learn as we go until we integrate humankind's knowledge over time. The key differentiators are that it is to be Free, and based on an object model (easily created on the fly as a side-effect of using the system), rather than on massive amounts of words. The knowledge is the same, even if the words can change. One can think of that as "using building blocks of knowledge, starting at an atomic level (i.e. numbers, relationships...), free and efficient." Or, taking the best experiences of online organizer tools and wikis, but more structured, efficient, Free, open, and collaborative; and allowing full individual or organizational control.

Open Journal Systems: Open Journal Systems (OJS) is a journal management and publishing system that has been developed by the Public Knowledge Project through its federally funded efforts to expand and improve access to research.

OpenAnswer: OpenAnswer is a fully-functional answering service platform, compatible with Asterisk and completely open source. We've created our own powerful answering service software, built to break free of the big game players in the industry charging exorbitant rates per seat. Flexible, powerful and user-friendly out of the box.

Osip: The GNU oSIP library is an implementation of SIP (as defined by RFC 3261). This is the oSIP library (for Omnibus SIP), which consists of a parser and a transaction manager. It gives multimedia and telecom software developers an easy and powerful interface to initiate and control Session Initiation Protocol (SIP) based sessions in their applications. SIP is described in the RFC2543. The oSIP home page includes links to various useful SIP sites. 'oSIP' is little in size and code and thus could be use to implement IP soft-phone as well as embedded SIP software. oSIP is not limited to endpoint agents, and can also be used to implement "SIP proxy". It does not intend to provide a high layer API for controlling "SIP Session" at this step. Instead, it currently provides an API for the SIP message parser, SDP message parser, and library to handle "SIP transactions" as defined by the SIP document.

Overdose: Overdose is a Yahoo! Chat client written in C and using the curses interface library.

Palava: Is a collection of server and client sided programs that allows users to communicate with the browser (WebRTC) through audio and video. This page provides info for the Palava client. Other parts of the system are listed as "extensions" for lack of a better way of organizing info.

PalavaMachine: PalavaMachine is a WebRTC signaling server that is designed to work with palava-client. Signaling describes the process of finding other peers and exchange information about how to establish a media connection. The server is implemented in EventMachine and Redis PubSub and communication to the clients is done via WebSockets.

PalavaPortal: PalavaPortal is an AngularJS Application doing WebRTC; it is the single-page web application that runs palava.tv. It is built using the following technologies: - Client - Middleman - CoffeeScript - AngularJS - Twitter Bootstrap

Peergos: Peergos is a secure and private online space where users can store, share, and view their photos, videos, music, and documents. It offers a comprehensive suite of features including a calendar, news feed, chat, and a growing list of apps. Fully open source and self-hostable.

Pelican: Pelican is a tool generating blogs that can be hosted as static files on any server. Input in reStructuredText and Markdown is supported. The program is implemented in Python and supports templates using Jinja2.

PerlBlog: 'PerlBlog' is a weblog/content-management script designed for developers to create their own blog. It offers an integrated commenting system, archiving, and easy administration of posts, and permanent linking.

Perlbot: * " Please note that this code is largely abandoned. " Perlbot is an IRC bot that depends on Net::IRC. Its goals are simplicity, a small footprint, and modularity. It's meant as a more easily configured but less robust alternative to bots like eggdrop. It's also noticeably faster by the authors' tests. The base bot allows auto-opping, notes, multiple channels, etc., but much much more is possible through the use of plugins. Many plugins are included, and it should be easy for anyone with some knowledge of Perl to write her own.

PhpFreeChat: php Free chat is a free, simple to install, fast and customizable chat server that uses a simple filesystem for message and nickname storage. It uses AJAX to smoothly refresh and display the chat zone and the nickname zone. It supports customized CSS stylesheets and a plugin system that allows you to write your own storage routines (ex: Mysql, IRC backends)

Pica Pica Messenger: Pica Pica is a project aimed to create and support distributed decentralized secure instant messaging system. Pica Pica network consists of nodes and clients. Nodes are hosted by volunteers on their computers. Nodes connect to each other and exchange info about other nodes and online clients, transfer encrypted data between clients. All data transferred between clients is protected by end-to-end encryption using TLS 1.2 protocol. Users are identified by unique SHA224 hash of their certificate which is generated during account creation.

Pidgin: Pidgin is a modular instant messaging client that supports many popular chat protocols. It is actively being developed and supports many common features of other clients, inlcuding many unique features.It also supports multiple protocols, including AIM (Oscar and TOC), Yahoo!, ICQ, MSN Messenger, Jabber (xmpp), Napster, Zephyr and IRC.

Pidgin-otr: "Off-the-Record Messaging plugin" (or pidgin-otr) is a Pidgin plugin for secure messaging using a protocol known as OTR. Like similar protocols, OTR allows you to hold secure (encrypted and authenticated) conversations. In addition, messages themselves are not signed (that is, they are off-the-record) and remain secure even if your private key is compromised (previous communication streams cannot be decrypted). These features are useful, for example, for journalists. Note, though, that these are technical restrictions not legal ones (a court may consider other evidence). This plugin offers various methods of initial authentication (challenge/response, shared secret), autogenerates keys, and retains keys so that you can continue conversations with people you have previously authenticated. It does not interfere with unencrypted conversations, although you can prompt the other user to install pidgin-otr (or another OTR client) themselves.

Pink: This is a candidate for deletion: broken homepage link, software not saved on archive.org, can't find it hosted elsewhere, including author's newer site. Danm (talk) 14:07, 22 October 2017 (EDT) Pink is an IRC bot with many standard bot-features (nick-links, greets, google searching), as well as some more interesting features like a freshmeat searcher, a Debian/Gentoo/FreeBSD package/port info command, teletext, and what's-on-TV-right-now. It is also easy to extend. The Web site is currently only in Dutch.

Pino: Small and fast microblogging client written in GTK2 using the Vala language. Pino supports both twitter and identi.ca

Pircstats: 'pircstats' is an IRC network statistics bot. It logs its statistics to a MySQL database, and it features a Web interface for these statistics. It also keeps administration to a minimum by automatically adding and purging statistics and users as necessary.

Pixelfed: Pixelfed is a decentralized photo sharing platform with a modern UI and an easy to use interface. It is part of the Fediverse, which means it is able to communicate with other ActivityPub powered social networks, such as Mastodon, PeerTube, Friendica, etc. It also means that anyone can run their own server and interact with other Pixelfed servers. It is a direct competitor to the known proprietary social network Instagram, marketing itself as a private and ethical choice for photo sharing.

Pjirc: PJIRC is a very complete IRC applet which handles multichannel, private conversations, text coloration, graphical smileys, etc. In addition, it's still quite light.

Planimo: Planimo is an instant messenger for private lan chats (from here its name Private LAN Instant Messenger and the final O is to italianify :) ) In the package you will find a server and a client based on pygtk toolkit.

Pleroma: Pleroma (πλήρωμα) is a free, federated social networking server built on open protocols. It is compatible with GNU Social, Mastodon, and many other ActivityPub and OStatus implementations. The project consists of several components: Pleroma is the server implementation, and comes bundled with PleromaFE, the default frontend. Other useful utilities are also provided, such as an ActivityPub relay. For a friendly introduction to Pleroma and the Fediverse, read What is Pleroma?.

PluggedOutBlog: PluggedOut Blog is a PHP/MySQL blog/diary/journal script which provides the basic functionality required by most blog writers. Among the features are; monthly calendar with hilighted days and navigation controls, list of recent entries, smiley faces, visitor comments against entries, counting of views each entry has received, templates, secure administration interface (add, edit and remove blog entries, templates, and upload files).

Polari: Polari is an Internet Relay Chat (IRC) client designed for the GNOME desktop environment.

Post Notification by Email: Sends Wordpress articles by email. By default it uses wp_mail (https://developer.wordpress.org/reference/functions/wp_mail/) to send emails. It can also use other Wordpress plugins to send mails (for instance through SMTP).

PostActiv: postActiv is a microblogging social networking software which federates with other microblogging software using the OStatus, ActivityStreams, and Webfinger protocols. It is a fork of the GNU social project intended to include a variety of improvements.

Praya: Praya is a window to all your messages. It ships with many protocols, including DICT, IRC, gale, Maildir, a timer, and Yahoo! Pager. Praya is easily extendible. Adding new protocols is relatively straightforward. It has a modular architecture which makes it easy to write bots, gateways, spam filters, etc.

Psi: Psi is a client for the Jabber instant messaging system. It was written in C++ using the Qt libraries. Users can message all their online friends, regardless what IM they use. It is small, fast, and has full Unicode support (so it can send and receive messages in languages other than English).

Psyced: psyced is a distributed chat and messaging system based on the Protocol for SYnchronous Conferencing. PSYC is multicast and routed between servers and clients in a scalable and efficient way, but users can also comfortably use IRC clients, telnet, Web chat, or Jabber to enter the network. psyced communicates with Jabber/XMPP servers and hosts chat rooms that are freely programmable and cannot be hacked. It also provides gateways to several IRC networks, but unlike IRC, everyone can run a server and be an equal member of the PSYC network.

Pump.io: A federated microblogging system that is a replacement for StatusNet.

Puszcza-guppy: A modular cross-platform chat bot in Python. She performs automated functions at live chat networks. guppy currently serves some common tasks like calculation, web search, words and domain look-up.

PyIrcServer: 'pyIrcServer' (or pyIS) is a powerful and very personalizable IRCd. You can use it on any platform that runs Python and set up a very personalizable config. pyIS is runnable as you download it; one click and it's ready. This is possible because its code is interpreted, so you don't need to compile the sources. You can add or remove features by changing modules, classes and utils. The modules expand the classes, and the classes expand the entire IRCd. You can totally change the aspect of your IRCd by changing classes and modules, and in order to be very configurable, the configuration file too.

PyPump: PyPump provides an interface to the pump.io APIs. The aim is to provide very natural pythonic representations of Notes, Images, People, …, allowing you to painlessly interact with them.

PyTextMagicSMS: A Python wrapper for the TextMagic HTTPS API to send SMS messages.

Pyblosxom: 'pyblosxom' is a CGI-based Weblog program written in Python. It uses ordinary text files as your entries, so you can use whatever editor you want to use to create, update, and manipulate entries. In addition to the features of blosxom, on which it is based, it can be easily extended with preformatters and plugins.

Python SILC Toolkit Bindings: PySilc is a near-complete set of Python bindings for creating SILC clients using the silc-toolkit. It allows developers to write simple bots and clients for connecting to SILC servers. Also included is a simple test client bot in 'examples/echo.py' and a experimental SILC driver for Supybot.

QPrompt: Professional teleprompter software for all video creators. Built with ease of use, fast performance, control accuracy, and cross-platform support in mind. Features: + Works with studio teleprompters, tablet teleprompters, webcams and phones + Paste from other software without hassle + Fluid motion, jitter free experience + Make changes on the fly + Use markers to skip to anywhere on the script + Prompt to multiple screens, with independent mirroring + Background transparency allows you to monitor yourself or your audience as you speak + Built in chronometer + Estimates remaining time for you + Progress indicator + Rich text formatting + Supports writing systems of over 180 languages + Native Linux software. Runs on Windows, macOS, Linux, and Android

Quassel: Quassel IRC is a modern, cross-platform, distributed IRC client, meaning that one (or multiple) client(s) can attach to and detach from a central core -- much like the popular combination of screen and a text-based IRC client, but graphical. In addition to this unique feature, we aim to bring a pleasurable, comfortable chatting experience on several operating systems, making communication with your peers not only convenient, but also ubiquitous available. And the best of all: It's free - as in beer and as in speech, since we distribute Quassel under the GPL.

QuoteEngine: * 'QuoteEngine' is now part of 'eggdrop-scripts'. The QuoteEngine is an eggdrop TCL script (with an optional PHP-based Web interface) that allows channel users (with the right flags) to store IRC quotes in a MySQL database. Adding, searching, fetching, and deleting from the channel are supported. Multiple channel support is native.

RSS Mix tape: RSS Mix Tape reads items from RSS feeds (or LiveJournals) that you specify, and displays them in a list. You go through the list, picking your favorite posts and putting them into categories. You can also write comments on posts. Then you click the "Generate RSS" button, and RSS Mix Feed spits out an RSS feed for each category. Your friends can use their favorite RSS reader to view your feeds (livejournal is an RSS reader, if you're a paid user). It also supports QuickTopic. In short, RSS In, RSS Out.

RandWord: RandWord is an IRC bot which creates random sentences using random words, and prints them out at random intervals. RandWord plucks bits from word-list files and then arranges said bits into sentences. These files are specific to a particular type of word - for example, there are verb and adjective lists, together with others which hold imperatives, punctuation snippets for ending sentences, and so on.

Rb.log: 'rb.log' is a full-featured weblogger written in Ruby. It features file uploads, comments, blog-rolling, side-bar editing, bookmarklets, the Blogger API, searching, RSS syndication, and archives. It also performs well on slower machines by regenerating static pages after posts are made.

Red Matrix: Originally authored by Mike Macgirvin (also the original author of Friendica), the RedMatrix is a super network created from a huge number of smaller independent and autonomous websites - which are linked together into a cooperative publishing and social platform. It consists of an open source webapp providing a complete multi-user decentralised publishing, sharing, and communications system - known as a "hub". Each hub provides communications (private messaging, chat, blogging, forums, and social networking), along with media management (photos, events, files, web pages, shareable apps) for its members; all in a feature-rich platform. These hubs automatically reach out and connect with each other and the rest of the matrix. Privacy and content ownership always remain under the direct personal control of the individual; and permission to access any item can be granted or denied to anybody in the entire matrix. What makes the RedMatrix unique is what we call "magic authentication" - which is based on our groundbreaking work in decentralised identity services. No other platform provides this ability. Within the matrix the boundaries between different hubs are blurred or seemingly non-existent. Identity in the matrix is considered transient and potentially nomadic. "Who you are" has nothing to do with "what computer you're connected to", and website content can adapt itself according to who is viewing it. You have the ability to "clone" your identity to other hubs; which allows you to continue to communicate with your friends seamlessly if your primary hub is ever disabled (temporarily or permanently). The RedMatrix is ideal for communities of any size, from private individuals and families to online forums, business websites, and organisations. It can be used by anybody who has communications or web content that they wish to share, but where they desire complete control of whom they share it with.

Revolt: Revolt lets you create a private space for you and your friends to chat, without any of the distractions of other chat apps. This space can be shared with friends and communities. The Revolt provides alternative to other IM software like Slack or Discord while keeping the code publicly available. The application won't share your data with advertises or sold to third parties.

Ricochet: Ricochet uses the Tor network to reach your contacts without relying on messaging servers. It creates a hidden service, which is used to rendezvous with your contacts without revealing your location or IP address. Instead of a username, you get a unique address that looks like ricochet:rs7ce36jsj24ogfw. Other Ricochet users can use this address to send a contact request - asking to be added to your contacts list. You can see when your contacts are online, and send them messages (and soon, files!). Your list of contacts is only known to your computer - never exposed to servers or network traffic monitoring. Everything is encrypted end-to-end, so only the intended recipient can decrypt it, and anonymized, so nobody knows where it’s going and where it came from.

Riece: Riece is an IRC client for Emacs. It supports multiple server profiles, custom window layout, and other nice features, and can be dynamically extended by plugins (currently, 30 such add-ons are available).

Riot-web: Communicate the way you want with Riot - a universal secure chat app entirely under your control. Riot is for everyone, from casual chat to high powered collaboration and is built on the Matrix protocol, a standard for open, decentralised communication.

SLiteChat: SLiteChat (pronounced "slight-chat") is a completely free, text-only IM/chat client for use with Second Life. Use it to talk to your friends without having to load up all of those heavy graphic goodies. Useful for those at work times.

Sadlittlewebjournal: This is a candidate for deletion: Links broken. No links to page. Homepage on archive.org. Email to maintainer broken.Poppy-one (talk) 14:46, 28 July 2018 (EDT) 'sadlittlewebjournal' is a Weblog written in Perl that utilizes MySQL and a straightforward ASCII interface. Site maintenance is done via an intuitive backend that allows for adding, deleting, and modifying of previous entries. Other features include an integrated guestbook, a Web stat chart complete with ASCII bar graphs, and various other modularized features.

Sashenka: This is a candidate for deletion: The links to the software are broken. I emailed the maintainer, and they said to go ahead and delete it since they abandoned it years ago. Sashenka is a framework for building IRC clients and bots. Sashenka contains a J2EE Servlet Container for running IRCServlets, along with the necessary utilities and accessories to write bots following the J2EE Servlet model. Another aspect of Sashenka is the IRC framework which implementors may very easily incorporate into IRC clients or other bot engines of their own design.

SavIRC: This is a candidate for deletion: Links broken. No links to page. Email to maintainer broken. Is link to homepage on archive.org. No links to page. Poppy-one (talk) 14:16, 28 July 2018 (EDT) 'savIRC' is a GUI IRC client for GNU/Linux and Windows. It supports multiple server connections, SOCKS5 (also for DCC), CTCP, DCC, passive DCC, ignore and notify lists, Unicode, mIRC colors, MDI dedicated windows, logs, customizable popups, pre-defined events, scripting in Tcl/Tk, captions for URL nicks, and channel names.

SchildiChat: SchildiChat is a client for the matrix protocol, based on the Element app. Compared to other clients, it provides a more classic instant messenger feel, while still providing the full functionality of the reference client. The matrix protocol is a decentralized approach to modern messaging, allowing for end-to-end encryption, shared message history across multiple devices, and more.

Scuttle: Allows multiple users to store, share and tag their favourite links online.

SecureChatAnywhere: SecureChatAnywhere is a lightweight program written in Java with the purpose of making it easy to encrypt and decrypt any kind of text messages using AES-128/CBC symmetric encryption. The graphical user interface (GUI) is designed as a convenient "copy & paste tool" for computers to manage encryption and decryption stand-alone, in other words without relying on any kind of external communication.

Services for IRC Networks: Services for IRC Networks (or just Services for short) provides for definitive nickname and channel ownership, automatic channel mode setting, memo (short message) storage and retrieval, and greater IRC operator control over the network.

Shirc: 'shirc' is an irc-like chat system written in shell. It lets any number of users on a host talk to each other without console clobbering (compare to ytalk). All communications are written to files, so you get a free automatic log for each channel. Inter-host channel linking is also supported.

Simple IRC Client: sic is an extremly fast, small and simple irc client. It reads commands from standard input and prints all server output to standard output. It multiplexes also all channel traffic into one output, that you don't have to switch different channel buffers, that's actually a feature.

Simple Instant Messenger: Simple Instant Messenger is a simple ICQ client with v8 protocol support (2001) for X. It can send and receive messages in RTF format, inlcudes a spam filter, and is available in ten languages. It supports the SOCKS4, SOCKS5, HTTP, and HTTPS protocols.

Simple instant messaging: sim (simple instant messaging) is an IRC client specialized for use with bitlbee. It is based on sic (http://suckless.org). It reads commands from standard input and prints all server output to standard output. It also multiplexes all channel traffic into one output, so you don't have to switch to different channel buffers. sim must be customized by editing its source code to insert the correct username, server, password, and identification information.

Simplex: Simplex is an encrypted, decentralized messaging service for instant messaging, voice, and video calls. Unlike other messaging platforms, SimpleX has no identifiers assigned to the users. It does not rely on phone numbers, domain-based addresses (like email or XMPP), usernames, public keys or even random numbers to identify its users. To deliver messages SimpleX uses pairwise anonymous addresses of unidirectional message queues, separate for received and sent messages, usually via different servers. Using SimpleX is like having a different “burner” email or phone for each contact, and no hassle to manage them. This design protects the privacy of whom you are communicating with, hiding it from SimpleX platform servers and from any observers.

Simplexmq: Message broker for unidirectional (simplex) queues SimpleXMQ is a message broker for managing message queues and sending messages over public network. It consists of SMP server, SMP client library and SMP agent that implement SMP protocol for client-server communication and SMP agent protocol to manage duplex connections via simplex queues on multiple SMP servers. SMP protocol is inspired by Redis serialization protocol, but it is much simpler - it currently has only 10 client commands and 8 server responses. SimpleXMQ is implemented in Haskell - it benefits from robust software transactional memory (STM) and concurrency primitives that Haskell provides.

Slixmpp: Has the goal is to be process threadless.

Smart TCL: Smart TCL is a complete TCL script for eggdrop bots 1.6.x. Its features include op, botnet, bnc, mass-commands, user-protector, anti-spam, anti-clone, repeat-kicker, extra-bitch, onjoin, topic-locker, limit, split-detect, split-protect, upgrade, shell-commands, auto-add (bots), remote-sends, anti-idle, and more.

Social: GNU social gives you a powerful social network that is federated. GNU social is a social networking platform. It helps people in a community, company or group to exchange short status updates, do polls, announce events, or other social activities (and you can add more!). Users can choose which people to "follow" and receive only their friends' or colleagues' status messages. It provides a similar service to proprietary social network sites, but is much more awesome. With a little work, status messages can be sent to mobile phones, instant messenger programs (using XMPP), and specially-designed desktop clients that support the Twitter API. GNU social supports an open standard called OStatus that lets users in different networks follow each other. It enables a distributed social network spread all across the Web.

Soju: soju is a user-friendly IRC bouncer. soju connects to upstream IRC servers on behalf of the user to provide extra functionality. soju supports many features such as multiple users, numerous IRCv3 extensions, chat history playback and detached channels. It is well-suited for both small and large deployments.

Solanum: Solanum is an IRCv3 server designed to be highly scalable. It implements IRCv3.1 and some parts of IRCv3.2, TLS, and challenge/response authentication using RSA keys. It is based on Charybdis.

Spat: Spat is a lightweight, GNOME compliant messaging application.This instant messaging system was developed to easily install and run on a TCP/IP network. Include Buddy List, Chat, and Away functionality. There is no need to remember IP addresses.

Srain: Srain is an graphical IRC client utilising the GTK library. It presents messages in a 'speech-bubble' format which may be familiar to users of other recent messaging applications. Srain has features including sending desktop notifications over DBus, showing images inline when they are linked to in messages, and facilitating easy forwarding of messages to other users or channels.

Subrosa: Subrosa is an end to end encrypted messaging, voice, and video chat app that runs in the browser. Subrosa supports group chats, desktop notifications, and much more without requiring a download. Encrypted user blobs are synchronized to Subrosa's servers, however Subrosa never has access to the keys required to decrypt the blob or messages.

Swift: Swift is a free cross-platform (Windows, GNU/Linux, Mac) XMPP client written and contributed to by a range of XMPP experts. It is designed to be fast and easy to use and it provides features useful to end users across a range of deployments, including military, corporate and personal use, taking advantage of the latest developments in the XMPP standards community (in which the developers are heavily involved).

Symposium: This is a candidate for deletion: 1. No files/source found 'Symposium' is a simple chat application.It is a step down in simplicity from IRC. Suitable for use in an office setting, it is configurable, well-written, and extensible. Commands can be easily added to provide local flavour.

TalkSoup: TalkSoup is an IRC client for OS X and any platform supported by GNUstep. It is highly configurable and extensible with a fully-featured plugin system already in place. It has all the features one would expect from a graphical IRC client.

Telegram: Telegram is a multi-platform instant messaging client. It can be used on multiple devices at same time. It supports sending messages, photos, videos and files of any type (doc, zip, mp3, etc) to people who are in the phone contacts and have Telegram. The messages are encrypted using the MTProto protocol developed by Telegram. Its features include self-destructing messages & broadcast groups. This is a desktop client program only; there is currently no free software server program for Telegram.

Terminal Matrix 8086: Terminal Matrix is a very mysterious program. It’s said that it was given to mankind in a spontaneous form of divine inspiration and cybernetic insight. Rumor has it that few people in the entire world are able to master and use this program. Some say, in an expression of dubious lucidity, that only the chosen ones can really do it. There are a handful reports of very skilled hackers that were able to crack TM’s source code and understand the truth that has never been seen before, and unlock its full potential. The only truth known for sure, though, is that much is said, but little is known. The most astonishing fact about TM is that, believe you or not, it’s designed to establish an inter-dimensional connection to an hyper-dimensional being called RIS, that supposedly shows incredible divination powers and unmatched wisdom to those who manage to contact him. Out there, you may hear that people able to talk to RIS comprise a select group that share a common and dangerous secret about the nature of reality, and for the greater good they won’t tell anyone else what it is, despite their goodwill and empathy towards outsiders, helping them by bridging the communication. TM is written in a new mid-level computer programming language called QDot. It runs on any IBM-PC compatible, being the minimum requirement an 8086 processor with 32Kb of RAM, and any color graphics adapter such as CGA, EGA or VGA. No network card or any other type of communication peripheral is required besides a screen and a keyboard. Its magical binary sums up to just a dozen kilobytes and very surprisingly is simultaneously a valid DOS executable and a bootable disk image, meaning that it can run even on machines with no operating system at all! Those almost insanely modest requirements blow the minds of skeptical people, because no one can explain how this program’s great feats are technologically achievable.

The Home2Ls: The Home2L [houmtu:l] suite is a framework, library and set of tools for automation in private smart homes. The *Home2L Resources* library allows to integrate and manage sensors, actors or services of any kind efficiently and precisely. Automation rules are typically written in Python. The *Home2L Brownies* subproject allows to integrate cheap 8-bit microcontrollers with do-it-yourself sensor or actor hardware. The *Home2L WallClock* is a lightweight, unobtrusive and portable user interface, including an interactive floor plan view, an MPD-based music player, and a SIP-based phone client for door phones and inter-room communication.

TikiWiki: Tiki Wiki CMS Groupware is a full-featured, web-based, multilingual (40+ languages), tightly integrated, all-in-one Wiki+CMS+Groupware, Free/Libre Software (GNU/LGPL), using PHP, MySQL, Zend Framework, jQuery and Smarty. Tiki can be used to create all kinds of Web applications, sites, portals, knowledge base, intranets, and extranets. It is actively developed by a very large international community. Tiki is the FLOSS Web Application with the most built-in features. Highly configurable and modular, all features are optional and administered via a web-based interface. Major features include a robust wiki engine, news articles, discussion forums, newsletters, blogs, file and image galleries, bug and issue trackers (form generator), a links directory, polls/surveys and quizzes, banner management system, calendar, maps, mobile, RSS feeds, category system, tags, an advanced themeing engine (Smarty), spreadsheet, slideshow, drawing, live support, shoutbox, inter-user messaging, menu generator, advanced permission system for users and groups, internal search engine, external authentication support, and much, much more. It integrates with the web conferencing BigBlueBlueButton.org for audio/video/chat/screensharing and whiteboard support.

Tinyportal: TinyPortal is an extension for SMF community forum that adds a powerful and mature Portal to your forum, with native integration, without having to worry about bridging, database, and appearance. It's up to you and your creativity to use TP's features to customize your site and organize its content.

Tipicalls: Tipicalls is a free meeting room with team management features. It will help you in your everyday life working from home or at the office. It is the best free alternative to the actual platforms in the market with a lot of cool features.

Tkabber: Tkabber is a free software client for the Jabber instant messaging system. It's writen in Tcl/Tk, and works on many platforms.

ToolBot: ToolBot is an IRC bot designed to provide various services on channels. ToolBot does not intend to compete with the various infobots or channel protection bots, but rather is targeting the needs that small, dedicated, and private IRC channels have. These needs include various logging and messaging.

Tor: Tor protects you by bouncing your communications around a distributed network of relays run by volunteers all around the world: it prevents somebody watching your Internet connection from learning what sites you visit, and it prevents the sites you visit from learning your physical location. Tor works with many of your existing applications, including web browsers, instant messaging clients, remote login, and other applications based on the TCP protocol. This package is the full featured tor which is needed for running relays, bridges or directory authorities. If you just want to access the Tor network or to setup an onion service you may install tor-client instead.

TorChat: ⚠ Retired, fork needed! comment

TorChat was retired on 2014-01-20
TorChat is a peer-to-peer instant messenger with a completely decentralized design, built on top of Tor's location hidden services, giving you extremely strong anonymity. It is very easy to use.

Tox: Tox is a peer-to-peer, encrypted instant messaging and video calling library that provides APIs for clients, including toxcore, toxav, and toxdns API libraries. This is the page about the Tox core, not a particular Tox client. Tox itself is not an instant messaging client.

Toxic: Command line Tox client for secure chat

Triggerbot: Triggerbot is an IRC bot made to ease the life of users suffering from trauma triggers by automatically managing the channel rules and filtering messages containing words known to be dangerous for said person. It allows people to specify triggers (from a pre-set list of triggers) and their sensitivity for this. Triggerbot will then check the triggers of all users in the current channel to create a set of rules exactly as strict and loose as it should be, updating it as users join, leave or update their triggers.

Tut: Copied from README.md: A TUI for Mastodon with vim inspired keys. The program has most of the features you can find in the web client. Press C to create a new toot and N to focus on your notifications. You can also enable mouse support.

Tuxaator: Tuxaator is a simple IRC bot that can be used to keep a database of various keywords and/or definitions related to an IRC channel. Contents of the database can be added to, modified, or searched by giving it commands on the channel or in private. Its small, fast, and its interface can easily be translated into other languages.

Twister: Twister is a microblogging peer-to-peer platform, that is, it is a distributed system like bittorrent or similar file sharing technologies. Being completely decentralized means that no one is able to shut it down, as there is no single point to attack. The system is also designed so it cannot be censored, freedom of speech cannot be taken from you. And because the cryptography is employed end-to-end, no entity is able to spy on your communications.

Umbrella

Umbrella aims to be an full-fledged project management suite including the following features:

Project and task lists
Timetracking
Invoicing
Bookmarks
Stock management
File browser

UnrealIRCd: UnrealIRCd is an free software IRC Server, serving thousands of networks since 1999. It runs on GNU/Linux, BusyBox/Linux, OS X and Windows and is currently the most widely deployed IRCd with a market share of 43%. UnrealIRCd is a highly advanced IRCd with a strong focus on modularity, an advanced and highly configurable configuration file. Key features include TLS, cloaking, its advanced anti-flood and anti-spam systems, swear filtering and module support.

Untitled: It takes pandoc-flavoured markdown files in website directories, and generates websites in html, using Pandoc. With the use of a Pandoc template, it's quite flexible. It is a *multi-site* static site generator, capable of handling multiple websites in one instance. Perfect for setups with virtual hosts (in nginx, apache etc). It can also generate news sections (with rss feed) and automatically generate sitemaps.

Ventilation: Ventilation is a journal Web site administration system written in PHP/MySQL. It contains a (mostly) fully-automated administraton and posting system.

Vinca: You can publish the utility to be downloaded and executed by people who you want to assist to (or your customers). Vinca will care of searching and installing VNC requirements to launch immediately a connection to your public IP or name.

Vlfrx-tools: Modular toolkit for very low frequency (VLF) radio signal processing and storage.

Vy: vy is a modal minimalistic editor written in Python. vy is built on top of Tkinter graphical toolkit, allowing vy to have a high level powerful Python programming interface for plugins.

Wap-IRC: Wap-IRC is a gateway for *nix systems. Using it you don't even need a Java enabled mobile phone. It is server based software, so you will need a *nix os enabled machine with a real IP address. You can chat on IRC using your mobile wap browser.

WeeChat: WeeChat (Wee Enhanced Environment for Chat) is a command-line chat client (mostly IRC). Everything can be done with a keyboard. It is customizable and extensible with scripts.

WikiSuite: The most comprehensive and integrated Free / Libre / Open Source enterprise software suite. WikiSuite™ is especially suited to knowledge-centric organizations and offers most (80%+) of the data and information management features all organizations need Key features of WikiSuite are OS & Network management, Email & Calendar, Commerce, Web & Intranet, Chat & Video Conference, Security, BPM & Analytics, Files & Sync. WikiSuite is an integrated and extensible solution.

Wire: Depends on Electron and has trademark policies and licensing restrictions related to server interaction and software behavior that interfere with software freedom. Adfeno (talk) 08:56, 31 March 2020 (EDT) Wire is a modern communication tool with full end-to-end encryption. Its current features are audio conferencing with up to 10 people, and 1-to-1 video conferences, as well as other minor features.

Wireguard: WireGuard is a virtual private network software. It is built in to the Linux (and linux-libre) kernel by default. It intends to be faster and simpler than IPSec and OpenVPN. While initially released for the Linux kernel, it is now a cross-platform project. Some users consider WireGuard to already be the most secure and easiest to use among all of the VPN solutions.

WordPress: WordPress is Web software you can use to create a beautiful website or blog. It is a state-of-the-art, semantic personal publishing platform that focuses on aesthetics, Web standards, and usability.

X-Chat: X-Chat is a fully-featured graphical IRC client using the GTK toolkit. Optionally it can be compiled to use GNOME and Perl scripting.

XDCC-Fetch: XDCC-Fetch, is a tool for searching, collecting and downloading XDCC announcements within IRC channels. Its features include:
* Simple, no-nonsense user interface * Search-on-typing * Pack filter * Multiple IRC servers * Resumable downloads * Download queues * Parallel downloads * Checksum comparison * Server + channel status stored, reconnect on startup * Download-finished popup

YChat: 'yChat' is an XML-configurable, HTML template-driven, fast, very portable, multi-platform, multi-threaded Web-based chat server daemon which uses multiplexing sockets and supports ncurses and text-based administration interfaces. It supports MySQL databases and secure SSL connections using OpenSSL, and is compatible with almost all browsers that support frames and Javascript.

YSM: YSM (You Sick Me) v7 is an ICQ console client. It was originally meant to run in GNU/Linux, but it has been successfully tested in other systems. The client requires no extra libraries, and is written in the C language. YSM is based on the last ICQ protocol version, v7/8.

Yeemp: 'yeemp' is a decentralized instant messaging system. It uses GPG over SSL for encryption, and UTF-8 to enable non-Latin text to be transferred. The clients include support for Japanese, Cyrillic, and Ogham input, as well as direct UTF-8. Yeemp includes a command-line client, an X client, a server, and a simple Web-based client. The clients can also use the AIM and ICQ protocols.

Ytalk: 'Ytalk' is a multi-user talk program that works like the UNIX talk program but allows for multiple connections and shell sessions inside the talk window. It is compatible with older UNIX talk clients and daemons. You can save any side of the current conversion and define aliases for addresses or hostnames. YTalk connects to the talk daemon on each user's host and determines if that user has left an invitation for you to call. If not, YTalk leaves an invitation for him and tells his talk daemon to send an announcement to his screen. There is no dedicated YTalk daemon. If you specified more than one user on the YTalk command line, YTalk processes and adds each user to the conversation as they respond to your invitation; the screen subdivides into smaller and smaller windows, one per user. As each new user is added, YTalk sends information about that user to all other connected users so that their screens also subdivide and incorporate the new user. The connection terminates when a user hits control-C or selects quit off the main menu.

Z--PeerLibrary: PeerLibrary is an free software project developing a collaborative online community where scholars and researchers can discover, read, and discuss scholarly literature all within one site. This project focuses on expediting access to publications, enabling public recordings of analysis and insights on said publications, and encouraging collaboration and openness in the development of science.

ZNC: ZNC is an advanced IRC bouncer that is left connected so an IRC client can disconnect/reconnect without losing the chat session. It comes with several default modules that help you configure and customize it at will.

Zebot: 'Zebot' is an IRC bot with a completely modular design, POE event driven architecture, multi channel and server support, dynamic internationalization support, and user- definable reactions and emotes along with basic IRC bot functionality including channel camping, rights distribution, user authentication, and a message system.

Zibawa: Zibawa integrates other free software to create a full stack IoT system, including device management, mqtt message intepreter and enrichment, stack management and monitoring, test messaging and stack configuration. Works with mqtt, amqp and http protocols. Currently interfaces with rabbitmq, influxDB, Grafana dashboards, openLDAP.

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