YaCy
Free software for your own search engine.
YaCy is free search engine software that lets users run their own search engine for local content, build an organization-wide search portal, or participate in a decentralized peer-to-peer web index. It addresses the need for search infrastructure that does not depend on a central search provider, allowing independently run devices to contribute to a shared index.
The software supports local search, intranet search across web pages and shared file systems, and organization-specific search portals with their own web index and crawls. In peer-to-peer mode, users contribute to a shared index without centralized request storage. YaCy is distributed as free software and is available for download, with a demo and documentation provided. The project states that it does not collect personalized data and has no integrated phoning-home behavior.
YaCy is intended for individuals and organizations that want to operate their own search infrastructure, including intranet and web search portals. The software is free, with community contributions and donations supporting the project; consulting services are also offered for search-related business topics.
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