YaCy
Java search engine server with a built-in web crawler and web interface, usable for a private index or in a peer-to-peer search network.
YaCy is a search engine server written in Java that combines a web crawler, a search index and a web interface in one application. Its download page offers packaged installers for Windows, macOS and Linux, a build from its git sources with ant, and an official Docker image.
Worth knowing
A new installation joins a peer-to-peer search network by default, in which peers share index data. The README says the mode can be changed in the web interface, and that a search can be limited to the local index, in which case results come only from that index.
Identity
Rendering and deploy
Releases
Adoption
Sources
- 2026-10-28: links
yacy.net/ - 2026-10-28: links, Written in, GitHub stars
api.github.com/repos/yacy/yacy_search_server - 2026-10-28: Maintainer, Runtime, Minimum runtime, Categories, License, Runs as
github.com/yacy/yacy_search_server - 2026-10-28: Install with
yacy.net/download_installation/ - 2026-10-28: Current major version, Last release
api.github.com/repos/yacy/yacy_search_server/git/refs/tags/Release_1.941 - 2026-10-28: First release
api.github.com/repos/yacy/yacy_search_server/git/refs/tags/0.99 - 2026-10-28: Contributors
api.github.com/repos/yacy/yacy_search_server/contributors?per_page=1