Presented below is a list of search engine software.

Commercial

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Apache Lucene
Apache Solr
ApexKB
Ark
Arrowsmith System
Chomp
Cue
dtSearch Engine
Datafari Enterprise Edition
Elasticsearch
Endeca
ExaSearch
Intergator
Koru search engine
LEVAN
Library Genesis
Lookeen
Meilisearch
Million Short
Mimvi
Myriad Search
Openbook
OpenSearchServer
Pubget
Q-go
Quixey
Sci-Hub
SinglePoint
SMART Information Retrieval System
Sparrho
Sphinx
Svensk mediedatabas
Swiftype
Thunderstone Software
Yandex Data Factory
Yaoota Shopping Engine
Yebol
Zedge

Free

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Apache Lucene
Apache Nutch
Apache Solr
Datafari Community Edition
DocFetcher
Gigablast
Grub
Ht-//Dig
Isearch
Meilisearch
Typesense
MnoGoSearch
OpenSearch
OpenSearchServer
PHP-Crawler
Manticore
StrangeSearch
SWISH-E
Terrier Search Engine
Vespa
Xapian
YaCy
Zettair

See also

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Search appliance
Bilingual search engine
Content discovery platform
Document retrieval
Incremental search
Web crawler

Categories

Categories:

Search engine software
Lists of software