Open source full-text-search projects
Every project in the registry tagged full-text-search, ranked by real GitHub adoption.
Lightning-fast search for your applications
Lightning-fast, typo-tolerant search engine for all
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
Lightning-fast open source search engine for big data
One Postgres for your application data, full-text search, vector retrieval, and aggregations. Home of the pg_search extension.
The AI-native database built for LLM applications, providing incredibly fast hybrid search of dense vector, sparse vector, tensor (multi-vector), and full-text.
Open-source file storage with complete data sovereignty
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
A fast, multi-threaded Redis® and Valkey alternative written in Rust: drop-in compatible, with full-text and vector search built in
A modern, feature-rich, databaseless flat-file wiki platform built with Go.
Capture web pages, text, and images. Find them fast.
Related tags
Frequently asked questions
How many open source full-text-search projects are there?
This registry tracks 12 projects tagged full-text-search, with 138,568 GitHub stars between them. The most-adopted is Meilisearch at 59,750 stars.
Are these full-text-search projects free to use?
Yes — 11 of the 12 carry an explicit open-source licence across 4 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 full-text-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 full-text-search projects still maintained?
12 of the 12 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.