Open source enterprise-search projects
Every project in the registry tagged enterprise-search, ranked by real GitHub adoption.
Lightning-fast search for your applications
Unified AI-powered enterprise search across company data
Lightning-fast, typo-tolerant search engine for all
Enterprise workplace AI with data you own and control
Full-text search API with real-time indexing and crawling
Open-source, self-hosted enterprise & site search server built on OpenSearch. Crawls web / file / DB / cloud sources, 20+ languages, REST API, and AI/RAG & sema
Related tags
Frequently asked questions
How many open source enterprise-search projects are there?
This registry tracks 6 projects tagged enterprise-search, with 126,980 GitHub stars between them. The most-adopted is Meilisearch at 59,758 stars.
Are these enterprise-search projects free to use?
Yes — 4 of the 6 carry an explicit open-source licence across 2 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which enterprise-search project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these enterprise-search projects still maintained?
6 of the 6 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.