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YaCy is a distributed search engine

YaCy (Yet another Cyberspace) peers crawl the internet and share the results. This decentralized network does not store search queries and makes censorship impossible.



Verified by

Verified on


Verified by

Craig Topham

Verified on

15 January 2020


All parts of the software known as YaCy are covered under the

terms of the GNU Lesser General Public License (files in source/net/yacy/cora) or the GNU General Public License (all other files) as published by the Free Software Foundation; either version 2 of the License, or (at your option)

any later version unless stated otherwise.

Leaders and contributors

Resources and communication

AudienceResource typeURI
DeveloperBug Trackinghttps://github.com/yacy/yacy_search_server/issues
DeveloperVCS Repository Webviewhttps://github.com/yacy/yacy_search_server

Software prerequisites

Required to useOpenJDK


Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

The copyright and license notices on this page only apply to the text on this page. Any software or copyright-licenses or other similar notices described in this text has its own copyright notice and license, which can usually be found in the distribution or license text itself.