ElasticSearch

Ultra relevant, instant and typo-tolerant full-text search API.

Internet metasearch engine which aggregates results from various search services and databases (Fork of Searx).

Blazing fast, typo-tolerant open source search engine optimized for developer happiness and ease of use.

Distributed and RESTful search engine.

Full-text search and data analytics, with fast response time for small, medium and big data (alternative to Elasticsearch).

Personal web search engine with automatic indexing of visited websites. Supports offline local result previews, local files, multi-user handling and optional semantic search.