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.

For a topical guide to this subject, see Outline of search engines.

By content/topic

General
NameLanguageAlexa global ranking
AOL Search*Multilingual318 †[1]
Ask.com**Multilingual173[2]
BaiduChinese4[3]
BingMultilingual47[4]
Dogpile***English10,603[5]
DuckDuckGo*Multilingual214[6]
Ecosia*Multilingual700[7]
ExaleadMultilingual116,560[8]
Excite*Multilingual15,098 †[9]
GigablastEnglish135,070[10]
GoogleMultilingual1[11]
HotBot*English298,374[12]
LycosMultilingual36,396[13]
MetaCrawler***English19,168[14]
MojeekMultilingual148,996[15]
Qwant*Multilingual2,158[16]
Searx***Multilingual93,323[17]
SogouChinese162[18]
SosoChinese96[19]
Startpage.com**English1,946[20]
Swisscows*Multilingual232,931[21]
WebCrawler*English4,264[22]
Yahoo!*Multilingual7 †[23]
YandexMultilingual1,060
Yippy***English137,607[24]
YoudaoChinese260[25]

* Powered by Bing

** Powered by Google

*** Metasearch engine

† Main website is a portal

Based on
Based on Ask.com (formerly)
Based on Bing
Based on Google
Based on Yahoo!
  • Ecocho
  • Forestle (an ecologically motivated site supporting sustainable rain forests – formerly based on Google)
  • Rectifi

Mobile/handheld

Geographically limited scope
NameLanguageCountry
AccoonaChinese, EnglishChina, United States
BiglobeJapaneseJapan
DaumKorean Korea
EgerinKurdishKurdistan
FireballGerman, EnglishGermany
GooJapaneseJapan
Leit.isIceland
MaktoobArab World
Miner.huHungary
Najdi.siSlovenia
NaverKoreanKorea
PipilikaBangladesh
RamblerRussia
RediffIndia
SAPOPortugal, Angola, Cape Verde, Mozambique
Search.chSwitzerland
SesamNorway, Sweden
SeznamCzech Republic
Walla!Israel
YandexRussia, Turkey, Ukraine, Belarus, Kazakhstan
ZipLocalCanada, United States

Accountancy

Business

Computers

Dark Web

Education

General:

Academic materials only:

Enterprise
See also: Enterprise search

Events
  • Tickex (US, UK)
  • TickX (UK, Ireland, Spain, Netherlands)

Food/recipes

Genealogy

Job

Medical

News

People

Real estate/property

Television

Video games

By data type

Search engines dedicated to a specific kind of information

Maps

Multimedia
See also: Multimedia search

Price

Source code

BitTorrent

These search engines work across the BitTorrent protocol.

Blog

Email

Forum

Question and answer

Human answers

Automatic answers
See also: Question answering

By model

Search appliances

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.[28] 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
GNOME Storage Linux Open Source desktop search tool for Unix/Linux GPL
Google Desktop Linux, Mac OS X, Windows Integrates with the main Google search engine page. 5.9 Release supports x64 systems. As of September 14, 2011, Google has discontinued this product. Freeware
ISYS Search Software Windows ISYS:desktop search software. Proprietary (14-day trial)
Locate32 Windows Graphical port of Unix's locate & updatedb BSD License[29]
Lookeen Windows Desktop search product with Outlook plugin and limited support for other formats via IFilters, uses Lucene search engine. Proprietary (14-day trial)[30]
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
Recoll Linux, Unix, Windows, macOS Open Source desktop search tool for Unix/Linux GPL [31]
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 [32]
Terrier Search Engine Linux, Mac OS X, Unix Desktop search for Windows, Mac OS X (Tiger), Unix/Linux. MPL v1.1[33]
Tracker Linux, Unix Open source desktop search tool for Unix/Linux GPL v2 [34]
Tropes Zoom Windows Semantic Search Engine (no longer available)[35] Freeware and commercial
Unity Dash Linux Part of Ubuntu Desktop GPL v3[36], LGPL v2.1[37]
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)[38]

Kids' safe search engines

Metasearch engines
NameLanguage
DogpileEnglish
ExciteEnglish
Info.comEnglish
Kayak.comMultilingual
Mamma.com
MetacrawlerEnglish
MobissimoMultilingual
Otalo.comEnglish
Publisher's clearinghouse Search and Win
SearxMultilingual
SkyscannerMultilingual
Yippy (formerly Clusty)English

Natural language
See also: Natural language search engine and Semantic search

Open source search engines

Web search engine
See also: Enterprise search and List of enterprise search vendors

P2P search engines
NameLanguage
FAROOEnglish
Seeks (open source)English
YaCy (free and fully decentralized)Multilingual

Privacy search engines
See also: Search engine privacy

Social and environmental focus

Semantic browsing engines
See also: Semantic search
NameDescriptionSpeciality
EviSpecialises in knowledge base and semantic searchanswer engine
SwoogleSearching over 10,000 ontologiesSemantic web documents
Yeboldefunct
YummlySemantic web search for food, cooking and recipesfood related

Social search engines
See also: Social search, Relevance feedback, and Human search engine

Usenet

Visual search engines

By popularity

Defunct or acquired search engines

See also

References
  1. "Aol.com Traffic, Demographics and Competitors - Alexa". www.alexa.com. Retrieved 2018-12-28.
  2. "Ask.com Traffic, Demographics and Competitors - Alexa". www.alexa.com. Retrieved 2018-12-28.
  3. "Baidu.com Traffic, Demographics and Competitors - Alexa". www.alexa.com. Retrieved 2018-12-28.
  4. "Bing.com Traffic, Demographics and Competitors - Alexa". www.alexa.com. Retrieved 2018-12-28.
  5. "Dogpile.com Traffic, Demographics and Competitors - Alexa". www.alexa.com. Retrieved 2018-12-28.
  6. "Duckduckgo.com Traffic, Demographics and Competitors - Alexa". www.alexa.com. Retrieved 2018-12-28.
  7. "Ecosia.org Traffic, Demographics and Competitors - Alexa". www.alexa.com. Retrieved 2018-12-28.
  8. "Exalead.com Traffic, Demographics and Competitors - Alexa". www.alexa.com. Retrieved 2018-12-28.
  9. "Excite.com Traffic, Demographics and Competitors - Alexa". www.alexa.com. Retrieved 2018-12-28.
  10. "Gigablast.com Traffic, Demographics and Competitors - Alexa". www.alexa.com. Retrieved 2018-12-28.
  11. "Google.com Traffic, Demographics and Competitors - Alexa". www.alexa.com. Retrieved 2018-12-28.
  12. "Hotbot.com Traffic, Demographics and Competitors - Alexa". www.alexa.com. Retrieved 2018-12-28.
  13. "Lycos.com Traffic, Demographics and Competitors - Alexa". www.alexa.com. Retrieved 2018-12-28.
  14. "Metacrawler.com Traffic, Demographics and Competitors - Alexa". www.alexa.com. Retrieved 2018-12-28.
  15. "Mojeek.com Traffic, Demographics and Competitors - Alexa". www.alexa.com. Retrieved 2018-12-28.
  16. "Qwant.com Traffic, Demographics and Competitors - Alexa". www.alexa.com. Retrieved 2018-12-28.
  17. "Searx.me Traffic, Demographics and Competitors - Alexa". www.alexa.com. Retrieved 2018-12-28.
  18. "Sogou.com Traffic, Demographics and Competitors - Alexa". www.alexa.com. Retrieved 2018-12-28.
  19. "Soso.com Traffic, Demographics and Competitors - Alexa". www.alexa.com. Retrieved 2018-12-28.
  20. "Startpage.com Traffic, Demographics and Competitors - Alexa". www.alexa.com. Retrieved 2018-12-28.
  21. "Swisscows.com Traffic, Demographics and Competitors - Alexa". www.alexa.com. Retrieved 2018-12-28.
  22. "Webcrawler.com Traffic, Demographics and Competitors - Alexa". www.alexa.com. Retrieved 2018-12-28.
  23. "Yahoo.com Traffic, Demographics and Competitors - Alexa". www.alexa.com. Retrieved 2018-12-28.
  24. "Yippy.com Traffic, Demographics and Competitors - Alexa". www.alexa.com. Retrieved 2018-12-28.
  25. "Youdao.com Traffic, Demographics and Competitors - Alexa". www.alexa.com. Retrieved 2018-12-28.
  26. "SimilarWeb". SimilarWeb. Retrieved 20 February 2015.
  27. Sullivan, Danny (April 18, 2007). "Goodbye Froogle, Hello Google Product Search!". Search Engine Land. Retrieved 3 June 2018.
  28. "HP Universal Search". Retrieved 2014-07-01.
  29. According to http://www.softpedia.com/get/Internet/Servers/Database-Utils/Locate32.shtml
  30. "Lookeen 10". Lookeen. Retrieved 2016-02-03.
  31. According to Recoll
  32. According to COPYING in version 0.5.10 tar.bz2 package.
  33. "Terrier License". GitHub.
  34. According to COPYING Archived 2012-07-14 at Archive.today in SVN trunk.
  35. According to http://www.semantic-knowledge.com/download.htm. Retrieved 15 August 2015.
  36. "Unity on GitHub". GitHub.
  37. "Required License Files". GitHub.
  38. "X1 Search 8". X1 Technologies. Retrieved 12 July 2014.
  39. Darrow, Barb (October 13, 2017). "Alibaba Is Adding This Key Technology to Its Growing Cloud". Fortune. Retrieved August 21, 2018.
  40. "Data, Data, Everywhere Data. Now a Better Way to Understand It". 27 March 2015.
  41. According to domain liquidation notice at http://blog.mrwebmaster.it/2014/04/11/il-dominio-volunia-it-e-in-vendita.html (Italian)
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