Typesense is a developer-friendly search engine for instant, typo-tolerant search-as-you-type with faceting, filtering, geo search, and vector/semantic search APIs.

26.5k stars965 forksGPL-3.0last commit Actively maintained

Managed cloud offering of Manticore Search, a full‑text search and analytics engine (Sphinx successor). Provides hosted clusters for scalable indexing and querying of structured and unstructured data via APIs, supporting real‑time search and analytics.
Typesense is a developer-friendly search engine for instant, typo-tolerant search-as-you-type with faceting, filtering, geo search, and vector/semantic search APIs.

26.5k stars965 forksGPL-3.0last commit Actively maintained
ZincSearch is a Go-based, lightweight search engine for full-text indexing with Elasticsearch API-compatible ingestion, a Vue UI, and a schema-less document model.

17.9k stars775 forkslast commit Actively maintained
OpenSearch is an Apache 2.0 open source distributed search and analytics engine for indexing, querying, and analyzing large-scale data with REST APIs.
13.6k stars2.9k forksApache-2.0last commit Actively maintained
Manticore Search is a fast open-source search database for full-text, faceted, and vector search with SQL (MySQL protocol) and HTTP JSON APIs.

12k stars641 forksGPL-3.0last commit Actively maintained
Scalable enterprise search platform supporting full-text, vector, faceted and geospatial search with SolrCloud clustering and a web admin UI.

1.7k stars859 forksApache-2.0last commit Actively maintained
sist2 is a fast, low-memory file system indexer with a web UI for searching file contents and metadata, with Elasticsearch or SQLite backends.
1.3k stars78 forksGPL-3.0last commit Actively maintained
Every option on this page is open source and free to run on your own hardware, so you own the data and there is no subscription to cancel. 6 of 6 shipped a commit in the last six months. Licences in this list: GPL-3.0, Apache-2.0. In exchange you take on hosting, backups and updates yourself.
Browse everything in Search & Indexing Engines.