Open Source Search Engines Tools

Open source search engines tools

projects 8 combined stars ★ 240K refresh nightly

Search Engines is one of the most active slices of the open source world — the 8 projects below are ranked by GitHub stars, which makes this page roughly a community-voted shortlist rather than a vendor-curated catalogue. Every card shows the license and the last-commit date, so you can filter out the two failure modes of free software in one glance: restrictive licensing that blocks your use case, and abandonment that leaves you maintaining a fork. When two projects look comparable, prefer the one with more recent activity and the more permissive license (MIT/Apache-2.0 over AGPL) unless copyleft specifically serves your goals. Hover into any project for its full README — the documentation quality is usually the honest tell of engineering quality.

All Search Engines tools

Elasticsearch ★ 78K

The leading distributed search and analytics engine

rank001 licenseNOASSERTION written inJava typeSearch Engines

Meilisearch ★ 59K

Lightning-fast search for your applications

rank002 licenseNOASSERTION written inRust typeSearch Engines

SearXNG ★ 37K

Privacy-first metasearch across 270+ sources

rank003 licenseAGPL-3.0 written inPython typeSearch Engines

Typesense ★ 27K

Lightning-fast, typo-tolerant search engine for all

rank004 licenseGPL-3.0 written inC++ typeSearch Engines

OpenSearch ★ 14K

Open-source search and analytics at enterprise scale

rank005 licenseApache-2.0 written inJava typeSearch Engines

Manticore Search ★ 12K

Lightning-fast open source search engine for big data

rank006 licenseGPL-3.0 written inC++ typeSearch Engines

Quickwit ★ 12K

Lightning-fast search for massive datasets

rank007 licenseApache-2.0 written inRust typeSearch Engines

SeekStorm ★ 1.9K

Full-text search API with real-time indexing and crawling

rank008 licenseApache-2.0 written inRust typeSearch Engines

Frequently asked questions

How many open source Search Engines tools are there?

This registry tracks 8 open source Search Engines projects, with 240,366 combined GitHub stars. The list is ranked by stars and refreshed nightly.

What is the most popular open source Search Engines project?

Elasticsearch leads this category with 77,925 GitHub stars, followed by Meilisearch.

Are these Search Engines tools free?

Yes — every project listed here is open source. Some also offer paid hosted versions alongside the free self-hosted option; the licence for each project is shown on its card.