Open Source Search Engines
A curated collection of the best open source specialized engines and platforms for implementing search functionality.
The leading distributed search and analytics engine
Stars
77,882Last commit
7 hours agoLicense
Unknown
Elasticsearch is an open-source, RESTful search engine designed for scalability, reliability, and easy management.
Open Source Alternative to:
Lightning-fast search for your applications
Stars
59,136Last commit
3 days agoLicense
MIT
A powerful, fast, and easy-to-use search engine that delivers instant and relevant results for your websites and applications.
Open Source Alternative to:
Privacy-first metasearch across 270+ sources
Stars
36,279Last commit
2 days agoLicense
AGPL-3.0
Self-hostable metasearch engine that aggregates results from 270+ sources without tracking or profiling users, with optional JavaScript and Tor support.
Open Source Alternative to:
Lightning-fast, typo-tolerant search engine for all
Stars
26,490Last commit
13 days agoLicense
GPL-3.0
Open-source search solution offering blazing speed, typo tolerance, and effortless scalability for developers and businesses.
Open Source Alternative to:
Open-source search and analytics at enterprise scale
Stars
13,605Last commit
2 days agoLicense
Apache-2.0
Community-driven, Apache 2.0-licensed search and analytics suite for ingesting, searching, visualizing, and analyzing data at scale with AI/ML capabilities.
Open Source Alternative to:
Lightning-fast search for massive datasets
Stars
11,557Last commit
2 days agoLicense
Apache-2.0
High-performance search engine designed for big data, offering scalability, real-time indexing, and cost-effective operations.
Open Source Alternative to:
Lightning-fast open source search engine for big data
Stars
11,967Last commit
7 hours agoLicense
GPL-3.0
Open source search database delivering 2.83x faster performance than Elasticsearch. Features vector search, SQL interface, and full-text capabilities.
Open Source Alternative to:
Full-text search API with real-time indexing and crawling
Stars
1,908Last commit
8 days agoLicense
Apache-2.0
Cloud search API and crawler service supporting billions of documents, real-time indexing, autocomplete, faceted filtering, and multi-language text across any application.
Open Source Alternative to:
Sevalla – Deploy your app before your coffee gets cold. It’s that easy. Try Sevalla with $50 free credit.
Sevalla