List of Top Free Open Source & Self Hosted Application for Search Engines

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A search engine is an information retrieval system designed to help find information stored on a computer system. This includes Web search engines.

Fess – Fess is a very powerful and easily deployable Enterprise Search Server. Apache-2.0 Java/Docker
Gigablast – Open-source search engine. Apache-2.0 C++
Hound – Lightning fast code searching made easy. MIT Go/Docker
Jina – Cloud-native neural search framework for any kind of data. Apache-2.0 Python
librengine – Private web search engine. GPL-3.0 C++
LibreX ⚠ – Framework and javascript free privacy respecting meta search engine. AGPL-3.0 PHP/Docker
Manticore Search – Much faster alternative to Elasticsearch for full-text search and data analytics. Provides much lower response time for small, medium and big data. GPL-2.0 Docker/C++
MeiliSearch – Ultra relevant, instant and typo-tolerant full-text search API. MIT Rust
OpenSearch – Open source distributed and RESTful search engine. Apache-2.0 Java
Searx ⚠ – Privacy-respecting, hackable metasearch engine. AGPL-3.0 Python
sist2 – Lightning-fast file system indexer and search tool. GPL-3.0 C
Typesense – Blazing fast, typo-tolerant open source search engine optimized for developer happiness and ease of use. GPL-3.0 C++
Whoogle ⚠ – A self-hosted, ad-free, privacy-respecting metasearch engine. MIT Python
Yacy – Peer based, decentralized search engine server. GPL-2.0 Java
ZincSearch – A lightweight alternative to elasticsearch that requires minimal resources, written in Go. Apache-2.0 Go

Ashwani K

👤 About the Author

Ashwani is passionate about DevOps, DevSecOps, SRE, MLOps, and AiOps, with a strong drive to simplify and scale modern IT operations. Through continuous learning and sharing, Ashwani helps organizations and engineers adopt best practices for automation, security, reliability, and AI-driven operations.

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