Typesense

Typesense is an open-source search engine that focuses on delivering fast, typo-tolerant full-text search and faceted filtering. It is built in C++ for performance and offers a simple REST API, making it straightforward to integrate into applications without managing complex infrastructure. The engine supports instant search results with ranked relevance and can handle large datasets efficiently.

Typesense provides features like synonym groups, federated search across multiple collections, and automatic caching. It offers client libraries for popular languages including Python, JavaScript, Ruby, PHP, and Go. The tool can run on Linux servers, Docker, or as a managed cloud service. It uses a built-in HTTP server and does not require external dependencies like Java or Lucene.

Typesense is well-suited for startups, e-commerce sites, and anyone needing a self-hosted alternative to Algolia or Elasticsearch. It is dual-licensed under the Apache 2.0 and GPLv3 licenses. The project was originally created by the team behind the early search startup Typesense, Inc., and has gained adoption in production for applications requiring low-latency search.