Fess

Distributed and RESTful search engine.

Enterprise search platform featuring full-text search, hit highlighting, faceted search, real-time indexing, dynamic clustering, and rich document (e.g., Word, PDF) handling.

Peer based, decentralized search engine server.

Ultra relevant, instant and typo-tolerant full-text search API.

Internet metasearch engine which aggregates results from various search services and databases (fork of Searx).

Blazing fast, typo-tolerant search engine optimized for developer happiness and ease of use.