5 open-source Enterprise Search vendors.

Open-source software for Enterprise Search that you can self-host, with auditable source code — regardless of the developer's headquarters.

• Apache SolrSelf-hosted / open source

  Open-source (Apache 2.0) enterprise search platform from the Apache Software Foundation with full-text, vector and geospatial search.

  United States

• DatafariSelf-hosted / open source

  French open-source enterprise search solution built on Apache Solr, maintained by France Labs; self-hosted deployment.

  France

• ElasticsearchEU sovereign

  Distributed, open-source search engine and analytics platform with commercial enterprise features; Netherlands-headquartered with major US operations.

  Netherlands

• OpenSearchSelf-hosted / open source

  100% Apache 2.0 licensed open-source search and analytics suite; community-driven fork of Elasticsearch, now governed under the Linux Foundation.

  United States

• TypesenseSelf-hosted / open source

  Open-source (GPL-3.0) typo-tolerant search engine (Los Angeles) as an alternative to Algolia and Elasticsearch, with self-hosted and SaaS options.

  United States