Open source ai-search-engine projects
Every project in the registry tagged ai-search-engine, ranked by real GitHub adoption.
Fast, scalable vector database for AI applications
Minimalistic AI-powered search engine for instant answers
XERJ is the new way for AI to search data. Its autoindex capability activates agents to know your data without the token waste of grep and sed. One command inde
Endee.io – A high-performance vector database, designed to handle up to 1B vectors on a single node, delivering significant performance gains through optimized
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Frequently asked questions
How many open source ai-search-engine projects are there?
This registry tracks 4 projects tagged ai-search-engine, with 49,754 GitHub stars between them. The most-adopted is Qdrant at 34,650 stars.
Are these ai-search-engine projects free to use?
Yes — 4 of the 4 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 ai-search-engine 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 ai-search-engine projects still maintained?
4 of the 4 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.