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 ...

Azure Search makes it easy to add powerful and sophisticated search capabilities to your website or application. Quickly and e ...