Category/Chat/instant-messaging

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Category/Chat

Achoz: will offer search and tools to reduce your data, keep it clean, fast and easy. in alpha development stage.

Actor platform: The Actor platform allows you to run a server for clients running the free software Actor messaging and group chat app on their computers and other devices. NB: Actor platform needs other modules in order to work, which is not covered by this entry.

Amethyst: Amethyst is one of the most feature-rich Nostr clients out there. Like other Nostr clients, users can post microblogs, follow other users, and upload images. However, because Nostr is so extensible, Amethyst has has a built-in peer-to-peer marketplace which works over the Bitcoin Lightning Network.

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

BChat: BChat is a private messaging App designed to keep your chats, identity, and data fully private. With end-to-end encryption and secure decentralized routing, your messages remain completely untraceable.

Bitcoin-Safe (FOSS) desktop wallet: Bitcoin Safe is a desktop software designed for managing Bitcoin in a secure, cold storage environment. It focuses on reducing risks associated with private key exposure by requiring hardware wallet integration and enforcing best practices for key management. The application includes guided setup flows for both single-signature and multi-signature wallets, helping users configure secure storage without needing deep technical expertise. It also provides tools for monitoring transactions through visual money flow diagrams and supports collaboration in multisig setups by enabling secure sharing of partially signed transactions. Additional features such as address poisoning detection, PDF backup generation, PSBT remote signing, Categories and Labels Sync across different devices or MultiSig parties, and Encrypted Chat groups for each multisig to enhance usability while maintaining security. The software is open source and compatible with a wide range of hardware wallets, making it suitable for individuals prioritizing long-term Bitcoin storage and control. Your keys, your sats!

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.

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.

Catgirl: A minimal terminal IRC client with tab completion, split scrolling, nick colouring, topic diffing, and message filtering.

Chatty: Chatty (sometimes called Chats) is part of the GNOME Circle initiative. The software was originally developed by Purism SPC until the project migrated to the GNOME World Gitlab. The application supports mobile and desktop usage as well as matrix, SMS/MMS, and limited libpurple support.