List of Search Engines

This is a list of 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. For a list of search engine software, see List of enterprise search vendors.

By content/topic


Name Language
Baidu Chinese
Bing Multilingual
DuckDuckGo Multilingual
Ecosia* Multilingual
Exalead Multilingual
Gigablast English
Google Multilingual
Mojeek Multilingual
Qwant Multilingual
Sogou Chinese Chinese
Yahoo!* Multilingual
Yandex Multilingual
Youdao Chinese

* Powered by Bing

Based on

Based on
Based on Bing
Based on Google
Based on Yahoo!
  • Ecocho
  • Everyclick (formerly based on
  • Forestle (an ecologically motivated site supporting sustainable rain forests - formerly based on Google)
  • Rectifi

Dark Web



Name Description Speciality
Evi Specialises in knowledge base and semantic search answer engine
Yummly Semantic web search for food, cooking and recipes food related
Swoogle Searching over 10,000 ontologies Semantic web documents






Academic materials only:





Geographically limited scope






Real estate/property


Video Games

By data type




Source code

By model

Search appliances

Search appliance

Desktop search engines

Desktop search engines listed on a light purple background are no longer in active development.

Name Platform Remarks License
Autonomy Windows IDOL Enterprise Desktop Search, HP Autonomy Universal Search.[3] Proprietary, commercial
Beagle Linux Open source desktop search tool for Linux based on Lucene. Unmaintained since 2009. A mix of the X11/MIT License and the Apache License
Copernic Desktop Search Windows Major desktop search program. The full trial version downgrades after the trial period automatically to the free version, which is (anno 2018) limited to indexing a maximum of 10.000 files. Proprietary (30 day trial)
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)
Everything Windows Find files and folders by name instantly on NTFS volumes Freeware
Google Desktop Linux, Mac OS X, Windows Integrates with the main Google search engine page. 5.9 Release now supports x64 systems. As of September 14, 2011, Google has discontinued this product. Freeware
GNOME Storage Linux Open Source desktop search tool for Unix/Linux GPL
ISYS Search Software Windows ISYS:desktop search software. Proprietary (14-day trial)
Locate32 Windows Graphical port of Unix's locate & updatedb BSD License[4]
Lookeen Windows Desktop search product with Outlook plugin and limited support for other formats via IFilters, uses Lucene search engine. Proprietary (14-day trial)[5]
Nepomuk Linux Open Source semantic desktop search tool for Linux. Has been replaced by Baloo in KDE Applications from release 4.13 onward. License SA 3.0 and the GNU Free Documentation License 1.2
Tracker Linux, Unix Open Source desktop search tool for Unix/Linux GPL v2 [6]
Recoll Linux, Unix, Windows, macOS Open Source desktop search tool for Unix/Linux GPL [7]
Spotlight macOS 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 [8]
Terrier Search Engine Linux, Mac OS X, Unix Desktop search for Windows, Mac OS X (Tiger), Unix/Linux. MPL v1.1[9]
Tropes Zoom Windows Semantic Search Engine (no longer available).[10] Freeware and commercial
Unity Dash Linux Part of Ubuntu Desktop. GPL v3[11], LGPL v2.1[12]
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
X1 Desktop Search Windows Major desktop search product along with Copernic Desktop Search. Proprietary (14-day trial)[13]

Metasearch engines

Name Language
Dogpile English
Excite English
HotBot English English
Kayak and SideStep Multilingual
Metacrawler English
Mobissimo Multilingual
Otalo English
PCH Search and Win
Searx Multilingual
Skyscanner Multilingual Multilingual
WebCrawler English
Yippy (formerly Clusty) English

Natural language

Open source search engines

P2P search engines

Name Language
FAROO English
Seeks (Open Source) English
YaCy (Free and fully decentralized) Multilingual

Privacy search engines

Social and environmental focus

Semantic browsing engines

Social search engines


Visual search engines

By popularity

By venue type

Search engines dedicated to a specific kind of information


These search engines work across the BitTorrent protocol.




Question and answer

Human answers

Automatic answers

Defunct or acquired search engines

See also


  1. ^ "SimilarWeb". SimilarWeb. Retrieved 2015.
  2. ^ Sullivan, Danny (April 18, 2007). "Goodbye Froogle, Hello Google Product Search!". Search Engine Land. Retrieved 2018.
  3. ^ "HP Universal Search". Retrieved .
  4. ^ According to
  5. ^ "Lookeen 10". Lookeen. Retrieved .
  6. ^ According to COPYING Archived 2012-07-14 at in SVN trunk.
  7. ^ According to Recoll
  8. ^ According to COPYING in version 0.5.10 tar.bz2 package.
  9. ^ "Terrier License". GitHub.
  10. ^ According to Retrieved 15 August 2015.
  11. ^ "Unity on GitHub". GitHub.
  12. ^ "Required License Files". GitHub.
  13. ^ "X1 Search 8". X1 Technologies. Retrieved 2014.
  14. ^ Darrow, Barb (October 13, 2017). "Alibaba Is Adding This Key Technology to Its Growing Cloud". Fortune. Retrieved 2018.
  15. ^ "Data, Data, Everywhere Data. Now a Better Way to Understand It". 27 March 2015.
  16. ^ According to domain liquidation notice at (Italian)

External links

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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