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Self-hosted Search Engines

A curated collection of the best self-hosted specialized engines and platforms for implementing search functionality..

The leading distributed search and analytics engine
  • Stars

    78,383
  • Last commit

    12 hours ago
  • License

    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

    59,672
  • Last commit

    3 days ago
  • License

    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

    Stars growing over the last 30 days38,856
  • Last commit

    1 day ago
  • License

    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

    27,046
  • Last commit

    16 hours ago
  • License

    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

    13,906
  • Last commit

    20 hours ago
  • License

    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

    11,743
  • Last commit

    2 days ago
  • License

    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

    12,071
  • Last commit

    13 hours ago
  • License

    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

    1,928
  • Last commit

    2 days ago
  • License

    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: