List of search engines
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
| Name | Language | Backend ownership |
|---|---|---|
| Ask.com | Multilingual | Google  |
| Baidu | Chinese | Baidu  |
| Brave Search | Multilingual | Brave |
| Dogpile | English | Metasearch engine |
| DuckDuckGo | Multilingual | Microsoft Bing |
| Ecosia | Multilingual | Microsoft Bing |
| Elasticsearch | Multilingual | Apache 2.0 until 2021, then Elasticsearch |
| Exalead | Multilingual | Cloudview  |
| Excite† | Multilingual | Microsoft Bing |
| Gigablast | English | Apache License 2.0 |
| Multilingual | Google | |
| HotBot | English | Microsoft Bing |
| Lycos | Multilingual | Microsoft Bing |
| MetaCrawler | English | Metasearch engine |
| Microsoft Bing | Multilingual | Microsoft Bing |
| Mojeek | Multilingual | Mojeek  |
| Opensearch | Multilingual | Apache License 2.0 (Elasticsearch fork) |
| Petal | Multilingual | Huawei |
| Qwant | Multilingual | Microsoft Bing |
| Searx | Multilingual | Metasearch engine |
| Sogou | Multilingual | Tencent |
| Startpage | English | Google |
| Swisscows | Multilingual | Microsoft Bing |
| WebCrawler | English | Microsoft Bing |
| YaCy | Multilingual | GPL-2.0-or-later |
| Yahoo! Search† | Multilingual | Microsoft Bing |
| Yandex | Multilingual | Yandex  |
| Youdao† | Chinese | NetEase |
| You.com | English | Microsoft Bing |
† Main website is a portal
Geographically localized
Accountancy
Business
- Business.com
- GenieKnows (United States and Canada)
- GlobalSpec
- Nexis (Lexis Nexis)
- Thomasnet (United States)
Computers
Content
- Openverse, search engine for open content.
Education
General:
Academic materials only:
Enterprise
- Apache Solr
- Jumper 2.0: Universal search powered by Enterprise bookmarking
- Oracle Corporation: Secure Enterprise Search 10g
- Q-Sensei: Q-Sensei Enterprise
- Swiftype: Swiftype Search
- TeraText: TeraText Suite
Food and recipes
- RecipeBridge: vertical search engine for recipes
- Yummly: semantic recipe search
Genealogy
- Mocavo.com: family history search engine
Job
- Adzuna (UK)
- CareerBuilder (USA)
- Craigslist (by city)
- Dice.com (USA)
- Glassdoor (USA)
- Indeed (USA)
- JobStreet.com (Southeast Asia, Japan, India)
- Monster.com (USA), (India)
- Naukri.com (India)
- Rozee.pk (Pakistan)
- Yahoo! HotJobs (Countrywise subdomains, International)
Medical
- Bing Health
- Bioinformatic Harvester
- CiteAb (antibody search engine for medical researchers)
- EB-eye EMBL-EBI's Search engine
- Entrez (includes PubMed)
- GenieKnows
- Healia
- Healthline
- Nextbio (Life Science Search Engine)
- PubGene
- Searchmedica
- WebMD
Mobile/handheld
- Taganode Local Search Engine (now defunct)
- Taptu: taptu mobile/social search (now defunct)
News
- Bing News
- Google News
- Newslookup
- Nexis (Lexis Nexis)
- Yahoo! News
People
Real estate/property
Television
Video games
By data type
Search engines dedicated to a specific kind of information
Maps
Multimedia
- Bing Videos
- blinkx
- FindSounds
- Google Video
- Munax's PlayAudioVideo
- Openverse, search engine for open content.
- Picsearch
- Pixsta
- Podscope
- SeeqPod
- Songza
- Tencent Video
- TinEye
- TV Genius
- Veveo
- Yahoo! Video
Price
- Bing Shopping
- Google Shopping (formerly Google Product Search and Froogle[1])
- Kelkoo
- MySimon
- PriceGrabber
- PriceRunner
- Pronto.com
- Shopping.com
- Shopzilla
- TickX
Source code
- codeseek.com
- Google Code Search
- Koders
- Krugle
BitTorrent
These search engines work across the BitTorrent protocol.
Email
Forum
Question and answer
Human answers
Automatic answers
By model
Search appliances
- Fabasoft
- Google Search Appliance - discontinued
- Munax
- Searchdaimon
- Thunderstone
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.[2] | 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[3] |
| Lookeen | Windows | Desktop search product with Outlook plugin and limited support for other formats via IFilters, uses Lucene search engine. | Proprietary (14-day trial)[4] |
| 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 [5] |
| 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 [6] |
| Terrier Search Engine | Linux, Mac OS X, Unix | Desktop search for Windows, Mac OS X (Tiger), Unix/Linux. | MPL v1.1[7] |
| Tracker | Linux, Unix | Open-source desktop search tool for Unix/Linux | GPL v2 [8] |
| Tropes Zoom | Windows | Semantic Search Engine (no longer available)[9] | Freeware and commercial |
| Unity Dash | Linux | Part of Ubuntu Desktop | GPL v3,[10] LGPL v2.1[11] |
| 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)[12] |
Child-safe search engines
Metasearch engines
| Name | Language |
|---|---|
| Dogpile | English |
| Excite | English |
| Info.com | English |
| Kayak.com | Multilingual |
| Mamma.com | |
| MetaCrawler | English |
| MetaGer | Multilingual |
| Mobissimo | Multilingual |
| Otalo.com | English |
| Publisher's clearinghouse Search and Win | |
| Searx | Multilingual |
| Skyscanner | Multilingual |
| Wego.com | Multilingual |
Open-source search engines
Enterprise search
P2P search engines
| Name | Language |
|---|---|
| Seeks (open-source) | English |
| YaCy (free and fully decentralized) | Multilingual |
Social and environmental focus
Semantic browsing engines
| Name | Description | Speciality |
|---|---|---|
| Evi | Specialises in knowledge base and semantic search | answer engine |
| Swoogle | Searching over 10,000 ontologies | Semantic web documents |
| Yebol | defunct | |
| Yummly | Semantic web search for food, cooking, and recipes | food related |
Social search engines
Usenet
- Google Groups (formerly Deja News)
By popularity
Defunct or acquired search engines
| Name | Backend ownership | Demise |
|---|---|---|
| iWon | Ask.com | Shut down after AT&T merger |
| Teoma | Ask.com | Merged to Ask.com which still uses its algorithms |
| A9.com | Microsoft Bing | Redirect to Amazon homepage (parent company) |
| AOL | Google until 2015, then Microsoft Bing | Merged to Yahoo! |
| Alexa Internet | Microsoft Bing | Bought by Amazon in 1999, shut down in 2021 |
| Ciao! | Microsoft Bing | Shut down in 2018 |
| Ms. Dewey | Microsoft Bing | January 2009 |
| Groovle | Taken over by Google after Google sued for name similarity | |
| MySpace Search | Function taken over by Google in 2006 | |
| Mystery Seeker | Novelty "search"; went offline in 2017 | |
| Netscape | Now redirects to AOL | |
| Ripple | as of 2017 at the latest | |
| Ecocho | Google, then Yahoo! | |
| Forestle | Google, then Yahoo! | Redirected to Ecosia in 2011 |
| Rectifi | Yahoo! | |
| Yippy | IBM Watson | Redirected to DuckDuckGo in 2021 |
- AlltheWeb (acquired by Yahoo!)
- AltaVista (acquired by Yahoo! in 2003, shut down in 2013)
- Bixee.com (India) (acquired by Ibibo)
- Blekko (acquired by IBM in 2015 for its use for Watson-based products)[14]
- BlogScope (acquired by Marketwire)
- BRS/Search (now OpenText Livelink ECM Discovery Server)
- Btjunkie
- Cuil (patents acquired by Google after shutdown)
- DeepPeep
- Direct Hit Technologies (acquired by Ask Jeeves in January, 2000)
- FedWorld Information Network (Archived 4 November 1996 at the Wayback Machine, a web and telnet search engine and FTP site specialized to searching for and within United States federal government documents, established in 1992 by the National Technical Information Service (NTIS) and shut down in 2013)
- Getit Infoservices Private Limited
- Google Answers
- GoPubMed
- hakia
- IBM STAIRS
- Infoseek (acquired by Disney)
- Inktomi
- Ixquick (merged into Startpage)
- Jubii
- Kartoo
- LeapFish
- Lotus Magellan
- MetaLib
- mozDex
- Munax
- Myriad Search
- Overture.com (formerly GoTo.com, now Yahoo! Search Marketing)
- PicoSearch [defunct July 2014][15] ...[16] [17]
- PubSub
- RetrievalWare (acquired by Fast Search & Transfer and now owned by Microsoft)
- Scroogle (Google Scraper)
- Singingfish (acquired by AOL)
- Soso
- Speechbot
- Sphere (acquired by AOL)
- Startpage (acquired by System1, an advertising company)
- Tafiti (replaced by Microsoft Bing)
- Volunia[18]
- Wikia Search (defunct)
- WiseNut
- World Wide Web Worm
See also
- List of academic databases and search engines
- List of web directories
- Search aggregator
- Search engine optimization
- Category:Search engine software
References
- Sullivan, Danny (April 18, 2007). "Goodbye Froogle, Hello Google Product Search!". Search Engine Land. Retrieved 3 June 2018.
- "HP Universal Search". Archived from the original on 2015-05-16. Retrieved 2014-07-01.
- "Download Locate32 3.1.11.7100". softpedia. 20 August 2012.
- "Lookeen 10". Lookeen. Retrieved 2016-02-03.
- According to Recoll
- According to COPYING inside version 0.5.10 tar.bz2 package.
- "Terrier License". GitHub. 13 November 2021.
- According to COPYING Archived 2012-07-14 at archive.today in SVN trunk.
- "Retrieved 15 August 2015". Archived from the original on 6 August 2019. Retrieved 16 August 2015.
- "Unity on GitHub". GitHub. 19 November 2021.
- "Required License Files". GitHub. 19 November 2021.
- "X1 Search 8". X1 Technologies. Retrieved 12 July 2014.
- Darrow, Barb (October 13, 2017). "Alibaba Is Adding This Key Technology to Its Growing Cloud". Fortune. Retrieved August 21, 2018.
- "Data, Data, Everywhere Data. Now a Better Way to Understand It". 27 March 2015.
- PicoSearch, the webpage from January 2008 when the site was 10 years old(WaybackMachine)
- PicoSearch May 27 2014 the last Wayback archived version of the page a few weeks before it shutdown](Wayback Machine)
- "Goodbye, PicoSearch", Kessler Freedman inc. May 28 2014
- "Il dominio Volunia.it è in vendita". MRW.it News.
External links
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