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codelibs/fess

Open-source, self-hosted enterprise & site search server built on OpenSearch. Crawls web / file / DB / cloud sources, 20+ languages, REST API, and AI/RAG & semantic search. Apache-2.0.

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Owner	codelibs
License (as declared)	Apache-2.0
Stars	1,141
Forks	176
Main language	Java
Created	13 September 2013
Last updated at source	14 October 2026

javaai-searchcrawlerdockerelasticsearchelasticsearch-alternativeenterprise-searchfull-text-searchllmlucenemcpopensearchragrest-apisearchsearch-engineself-hostedsemantic-searchsite-search

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