YaCy is free software for your own search engine.

YaCy is free search engine software for local search, organization-wide search portals, and a decentralized peer-to-peer web index.

Download YaCy Try Demo

Choose how you want to use YaCy

Run YaCy locally, build a search portal for your organization, or join the decentralized peer-to-peer search network.

P2P Mode

Web Search by the people, for the people: decentralized, all users are equal, no central, no search request storage, shared index.

Your Search Portal

Your YaCy installation is independent from other peers. Define your own web index and start your own web crawl.

Intranet Search

Create a search portal for your intranet, web pages or your (shared) file system.

Decentralization

YaCy does not depend on a central search provider. In peer-to-peer mode, many independently run devices contribute to a shared search index, so no single company or server controls the network.

Here is a live image of the YaCy network: