ElasticSearch is a distributed, RESTful, free/open source search server based on Java and under the Apache License ( Lucene ).

Sphinx is a free software search engine designed with indexing database content in mind. It currently supports MySQL, PostgreS ...

The goal of ItemsAPI is creating search application without spending time for backend. You just provide json data and your bac ...

Measured Search provides a fully-managed personalized search & discovery service offering feature packed textual & rel ...

With Google Custom Search, add a search box to your homepage to help people find what they need on your website.

The best site search for any website. Simple type, get search suggests, autocompletions and structured data at your fingertips ...

The easiest way to add great search to your website Swiftype is a hosted software service that eliminates the need to create y ...

Cludo is a powerful search solution to your website. It is built on top of Elasticsearch which means you do not have to do any ...

Solr is an open source enterprise search server based on Lucene search library, with XML/HTTP and JSON APIs. Its major feature ...

Whoosh is a fast, featureful full-text indexing and searching library implemented in pure Python. Programmers can use it to ea ...

Heritrix is the Internet Archive's open-source, extensible, web-scale, archival-quality web crawler project. Heritrix (sometim ...

Manticore Search is a feature-rich search engine that is blazing fast, reliable and scalable. It is 100% open source project s ...

Xapian is an open source probabilistic information retrieval library, released under the GNU General Public License (GPL). It ...

OpenSearchServer is an open source application server allowing development of index-based applications like search engines. Ma ...