Presented below is a list of search engine software.

Commercial

Free

{{columns-list, colwidth=22em, * Apache Lucene * Apache Nutch * Apache Solr * Datafari Community Edition * DocFetcher * Gigablast *

Grub Grub can refer to Grub (larva), of the beetle superfamily Scarabaeoidea, or as a slang term for food. It can also refer to: Places * Grub, Appenzell Ausserrhoden, Switzerland * Grub, St. Gallen, Switzerland * Grub (Amerang), a hamlet in Bavaria, ...

* Ht-//Dig *

Isearch Isearch is open-source text retrieval software first developed in 1994 by Nassib Nassar as part of the Isite Z39.50 information framework. The project started at the Clearinghouse for Networked Information Discovery and Retrieval (CNIDR) of t ...

* Meilisearch * MnoGoSearch *

OpenSearch OpenSearch is a collection of technologies that allow the publishing of search results in a format suitable for syndication and aggregation. Introduced in 2005, it is a way for websites and search engines to publish search results in a standard ...

* OpenSearchServer * PHP-Crawler * Sphinx *

StrangeSearch ''StrangeSearch'' is a free, open-source indexing and search engine for Windows by Jeremy Davis and Dan Dunham. It was originally developed at Iowa State University and is the inspiration of several search engines. StrangeSearch is written i ...

* SWISH-E *

Terrier Search Engine The Terrier IR Platform is a modular open source software for the rapid development of large-scale information retrieval applications. Terrier was developed by members of thInformation Retrieval Research Group Department of Computing Science, at th ...

Vespa
*

Xapian Xapian is a free and open-source probabilistic information retrieval library, released under the GNU General Public License (GPL). It is a full-text search engine library for programmers. It is written in C++, with bindings to allow use from Per ...

YaCy ''YaCy'' (pronounced “ya see”) is a free distributed search engine, built on the principles of peer-to-peer (P2P) networks created by Michael Christen in 2003. The engine is written in Java and distributed on several hundred computers, , so- ...

Zettair Zettair is a compact text search engine for indexing and search of HTML (or TREC) collections. It is an open source software developed by a group of researchers at RMIT University. Its primary feature is the ability to handle large document coll ...

Commercial

Free

See also