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List of search engines

This is a list of Wikipedia articles about search engines, including web search engines, selection-based search engines, metasearch engines, desktop search tools, and web portals and vertical market websites that have a search facility for online databases.


By content/topic


Geographical limited scope











Real property


Video Games

By information type

Search engines dedicated to a specific kind of information




Source code


These search engines work across the BitTorrent protocol.




Question and answer

Human answers

Automatic answers

Natural language

By model

Open source search engines

Semantic browsing engines

Social search engines

Metasearch engines

Visual search engines

Search appliances

  • Google: Google Search Appliance

Desktop search engines

Name Platform Remarks License
Autonomy Windows IDOL Enterprise Desktop Search. Proprietary, commercial
Beagle Linux Open source desktop search tool for Linux based on Lucene A mix of the X11/MIT License and the Apache License
Copernic Desktop Search Windows Considered best overall search engine in 2005 UW benchmark study.[1] Free for home use
Docco cross-platform (Java) Based on Apache's indexing and search engine Lucene, and it requires a Java Runtime Environment. BSD License [2]
Docfetcher Cross-platform Open source desktop search tool for Windows and Linux, based on Apache Lucene Eclipse Public License
dtSearch Desktop Windows Proprietary (30 day trial)
Easyfind Mac OS Freeware
Google Desktop Linux, Mac OS, Windows Integrates with the main Google search engine page. 5.9 Release now supports x64 systems. Freeware
GNOME Storage Linux Open Source desktop search tool for Unix/Linux GPL
imgSeek Linux, Mac OS, Windows Desktop content-based image search GPL v2 [3]
InSight Desktop Search Windows Metadata-based search utility Freeware
ISYS Search Software Windows ISYS:desktop search software. Proprietary (14 day trial)
Likasoft Archivarius 3000 Windows - Proprietary (30 day trial)
Meta Tracker Linux, Unix Open Source desktop search tool for Unix/Linux GPL v2 [4]
Recoll Linux, Unix Open Source desktop search tool for Unix/Linux GPL [5]
Spotlight Mac OS Found in Apple Mac OS X "Tiger" and later OS X releases. Proprietary
Strigi Linux, Unix, Solaris, Mac OS X and Windows Cross-platform open source desktop search engine LGPL v2 [6]
Terrier Search Engine Linux, Mac OS, Unix Desktop search for Windows, Mac OS X (Tiger), Unix/Linux. MPL
Tropes Zoom Windows Semantic Search Engine. Freeware and commercial
Windows Search Windows Part of Windows Vista and later OSs. Available as Windows Desktop Search for Windows XP and Server 2003. Does not support indexing UNC paths on x64 systems. Proprietary, freeware
X1 Professional Client Windows Formerly Yahoo Desktop Search, then X1 Desktop Search, then X1 Enterprise Client Proprietary (30 day trial)


Based on





Acquired or defunct search engines

See also


  1. ^ "Benchmark Study of Desktop Search Tools". http://www.uwebi.org/reports/desktop_search.pdf. Retrieved 2008-03-10. 
  2. ^ According to SourceForge project page
  3. ^ According to COPYING in SVN trunk on SourceForge.
  4. ^ According to COPYING in SVN trunk.
  5. ^ According to [1].
  6. ^ According to COPYING in version 0.5.10 tar.bz2 package.

External links

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