Yacy

Distributed, RESTful search and analytics engine.

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

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

Cloud-native neural search framework for any kind of data.

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

Search engine that requires minimal resources (alternative to Elasticsearch).

Distributed and RESTful search engine.

A self-hosted, ad-free, privacy-respecting metasearch engine.

Full-text search and data analytics, with fast response time for small, medium and big data (alternative to Elasticsearch).

BitTorrent indexer, DHT crawler, content classifier and torrent search engine with web UI, GraphQL API and Servarr stack integration.

Tool for indexing large amounts of both documents (PDF, Word, HTML) and structured (CSV, XLS, SQL) data for easy browsing and search. It is built with investigative reporting as a primary use case.