Search engines, including web search engines, selection-based search engines, metasearch engines, desktop search tools, and web portals and vertical market websites have a search facility for online databases.

By content/topic

General

NameLanguage Backend ownership
Ask.comMultilingual Google United States
BaiduChinese Baidu China
Brave SearchMultilingual Brave United States
DogpileEnglish Metasearch engine
DuckDuckGoMultilingual Microsoft Bing United States
EcosiaMultilingual Microsoft Bing United States
ElasticsearchMultilingualApache 2.0 until 2021, then Elasticsearch
ExaleadMultilingual Cloudview France
ExciteMultilingual Microsoft Bing United States
GigablastEnglish Apache License 2.0
GoogleMultilingual Google United States
HotBotEnglish Microsoft Bing United States
LycosMultilingual Microsoft Bing United States
MetaCrawlerEnglish Metasearch engine
Microsoft BingMultilingual Microsoft Bing United States
MojeekMultilingual Mojeek United Kingdom
OpensearchMultilingualApache License 2.0 (Elasticsearch fork)
PetalMultilingual Huawei China
QwantMultilingual Microsoft Bing United States
SearxMultilingual Metasearch engine
SogouMultilingual Tencent China
StartpageEnglish Google United States
SwisscowsMultilingual Microsoft Bing United States
WebCrawlerEnglish Microsoft Bing United States
YaCyMultilingualGPL-2.0-or-later
Yahoo! SearchMultilingual Microsoft Bing United States
YandexMultilingual Yandex Russia
YoudaoChinese NetEase China
You.comEnglish Microsoft Bing United States

Main website is a portal

Geographically localized

NameLanguageCountry
AccoonaChinese, EnglishChina, United States
BiglobeJapaneseJapan
DaumKorean Korea
NateKorean Korea
EgerinKurdishSweden[1][2][3]
FireballGerman, EnglishGermany
GooJapaneseJapan
Leit.isIcelandic, EnglishIceland
Miner.hu (defunct)HungarianHungary
Najdi.siSlovenianSlovenia
NaverKoreanKorea
ParsijooPersianIran
Pipilika (defunct)Bengali, EnglishBangladesh
RamblerRussianRussia
RediffIndia
Search.chSwitzerland
Sesam (defunct)Norway, Sweden
SeznamCzechCzech Republic
Walla!Israel
Yahoo! JapanJapaneseJapan (Google backend)
YongzinTibetanChina
ZipLocalEnglishCanada, United States

Accountancy

Business

Computers

Content

Dark web

Education

General:

Academic materials only:

Enterprise

Events

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

Food and recipes

Genealogy

Job

Medical

Mobile/handheld

News

People

Real estate/property

Television

Travel

Video games

By data type

Search engines dedicated to a specific kind of information

Maps

Multimedia

Price

Source code

BitTorrent

These search engines work across the BitTorrent protocol.

Blog

Email

Forum

Question and answer

Human answers

Automatic answers

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
HP Autonomy Windows IDOL Enterprise Desktop Search, HP Autonomy Universal Search.[5] 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. 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[6]
Lookeen Windows Desktop search product with Outlook plugin and limited support for other formats via IFilters, uses Lucene search engine. Proprietary (14-day trial)[7]
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 [8]
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 [9]
Terrier Search Engine Linux, Mac OS X, Unix Desktop search for Windows, Mac OS X (Tiger), Unix/Linux. MPL v1.1[10]
Tracker Linux, Unix Open-source desktop search tool for Unix/Linux GPL v2 [11]
Tropes Zoom Windows Semantic Search Engine (no longer available)[12] Freeware and commercial
Unity Dash Linux Part of Ubuntu Desktop GPL v3,[13] LGPL v2.1[14]
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)[15]
Wumpus Cross platform Desktop search focused on information retrieval research GPL

Child-safe search engines

Metasearch engines

NameLanguage
DogpileEnglish
ExciteEnglish
Info.comEnglish
Kayak.comMultilingual
Mamma.com
MetaCrawlerEnglish
MetaGerMultilingual
MobissimoMultilingual
Otalo.comEnglish
Publisher's clearinghouse Search and Win
SearxMultilingual
SkyscannerMultilingual
Wego.comMultilingual

Natural language

Open-source search engines

Web search engine

P2P search engines

NameLanguage
Seeks (open-source)English
YaCy (free and fully decentralized)Multilingual

Privacy search engines

Social and environmental focus

Semantic browsing engines

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

Usenet

Visual search engines

By popularity

Defunct or acquired search engines

NameBackend ownershipDemise
iWonAsk.comShut down after AT&T merger
TeomaAsk.comMerged to Ask.com which still uses its algorithms
A9.comMicrosoft BingRedirect to Amazon homepage (parent company)
AOLGoogle until 2015, then Microsoft BingMerged to Yahoo!
Alexa InternetMicrosoft BingBought by Amazon in 1999, shut down in 2021
Ciao!Microsoft BingShut down in 2018
Ms. DeweyMicrosoft BingJanuary 2009
GroovleGoogleTaken over by Google after Google sued for name similarity
MySpace SearchGoogleFunction taken over by Google in 2006
Mystery SeekerGoogleNovelty "search"; went offline in 2017
NetscapeGoogleNow redirects to AOL
RippleGoogleas of 2017 at the latest
EcochoGoogle, then Yahoo!
ForestleGoogle, then Yahoo!Redirected to Ecosia in 2011
Yippy IBM Watson Redirected to DuckDuckGo in 2021
Grams Grams (anonymous owner) Closed in 2017

See also

References

  1. "Kurdish Swede creates first Kurdish search engine". Bas News. Archived from the original on 2014-01-02. Retrieved 1 January 2014.
  2. "First Kurdish Search Engine, Egerin, Is Launched". SBWire. 30 December 2013. Retrieved 1 January 2014.
  3. "This Entrepreneur Wants to Build a Kurdish Alternative to Google". www.vice.com. 18 March 2016.
  4. Sullivan, Danny (April 18, 2007). "Goodbye Froogle, Hello Google Product Search!". Search Engine Land. Retrieved 3 June 2018.
  5. "HP Universal Search". Archived from the original on 2015-05-16. Retrieved 2014-07-01.
  6. "Download Locate32 3.1.11.7100". softpedia. 20 August 2012.
  7. "Lookeen 10". Lookeen. Retrieved 2016-02-03.
  8. According to Recoll
  9. According to COPYING inside version 0.5.10 tar.bz2 package.
  10. "Terrier License". GitHub. 13 November 2021.
  11. According to COPYING Archived 2012-07-14 at archive.today in SVN trunk.
  12. "Retrieved 15 August 2015". Archived from the original on 6 August 2019. Retrieved 16 August 2015.
  13. "Unity on GitHub". GitHub. 19 November 2021.
  14. "Required License Files". GitHub. 19 November 2021.
  15. "X1 Search 8". X1 Technologies. Retrieved 12 July 2014.
  16. Darrow, Barb (October 13, 2017). "Alibaba Is Adding This Key Technology to Its Growing Cloud". Fortune. Retrieved August 21, 2018.
  17. "Data, Data, Everywhere Data. Now a Better Way to Understand It". 27 March 2015.
  18. "Il dominio Volunia.it è in vendita". MRW.it News.
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