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 |
| Kagi | English | Metasearch engine and Kagi Inc |
| 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
- Daily Stocks
- GenieKnows (United States and Canada)
- GlobalSpec
- Nexis (Lexis Nexis)
- Thomasnet (United States)
Computers
Content
- Openverse, search engine for open content.
Dark web
Education
General:
Academic materials only:
- BASE (search engine)
- ChemRefer
- CiteULike
- Google Scholar
- Internet Archive Scholar
- Library of Congress
- Semantic Scholar
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
Events
Food and recipes
- RecipeBridge: vertical search engine for recipes
- Yummly: semantic recipe search
Genealogy
- Mocavo.com: family history search engine
Job
- Adzuna (UK)
- CareerBuilder (US)
- Craigslist (by city)
- Dice.com (US)
- Glassdoor (US)
- Indeed (US)
- JobStreet.com (Southeast Asia, Japan, India)
- Monster.com (US), (India)
- Naukri.com (India)
- Rozee.pk (Pakistan)
- Yahoo! HotJobs (Countrywise subdomains, International)
Legal
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
People
Real estate/property
Television
Travel
Video
Video games
By data type
Search engines dedicated to a specific kind of information
Maps
- Baidu Maps
- Bing Maps
- Géoportail
- Google Maps
- MapQuest
- Nokia Maps
- OpenStreetMap
- Petal Maps
- Qwant Maps
- Tencent Maps
- Wikiloc
- WikiMapia
- Yahoo! Maps
- Yandex Maps
Multimedia
- Bing Videos
- blinkx
- FindSounds
- Google Images
- Google Video
- Munax's PlayAudioVideo
- Openverse, search engine for open content.
- Picsearch
- Podscope
- SeeqPod
- Sepia Search
- Songza
- Tencent Video
- TinEye
- TV Genius
- Veveo
- Yahoo! Video
Price
- Bing Shopping
- Google Shopping (formerly Google Product Search and Froogle[4])
- Kelkoo
- MySimon
- PriceGrabber
- PriceRunner
- Pronto.com
- Shopping.com
- Shopzilla
- TickX
Source code
BitTorrent
These search engines work across the BitTorrent protocol.
- BTDigg
- Isohunt - discontinued
- Mininova - discontinued
- The Pirate Bay
- TorrentSpy - discontinued
- Torrentz - discontinued
Blog
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.[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) |
| KRunner | Linux | ||
| 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. Unmaintained since 2011-06-02[9]. | LGPL v2 [10] |
| Terrier Search Engine | Linux, Mac OS X, Unix | Desktop search for Windows, Mac OS X (Tiger), Unix/Linux. | MPL v1.1[11] |
| Tracker | Linux, Unix | Open-source desktop search tool for Unix/Linux | GPL v2 [12] |
| Tropes Zoom | Windows | Semantic Search Engine (no longer available)[13] | Freeware and commercial |
| Unity Dash | Linux | Part of Ubuntu Desktop | GPL v3,[14] LGPL v2.1[15] |
| 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)[16] |
| Wumpus | Cross platform | Desktop search focused on information retrieval research | GPL |
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 |
Natural language
- Ask.com
- Bing (Semantic ability is powered by Powerset)
- Lexxe
- Perplexity.ai
Open-source search engines
- ht://Dig
- Isearch
- Lemur Toolkit & Indri Search Engine
- Lucene
- mnoGoSearch
- Nutch
- Openverse
- Recoll
- Searchdaimon
- Searx
- Seeks
- Sphinx
- SWISH-E
- Terrier Search Engine
- Xapian
- YaCy
- Zettair
Web search engine
Enterprise search
P2P search engines
| Name | Language |
|---|---|
| Seeks (open-source) | English |
| YaCy (free and fully decentralized) | Multilingual |
Privacy search engines
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)
Visual search engines
By popularity
Defunct or acquired search engines
| Name | Backend ownership | Demise |
|---|---|---|
| iWon | Ask.com | Shut down after AT&T merger[citation needed] |
| 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 |
| Yippy | IBM Watson | Redirected to DuckDuckGo in 2021 |
| Grams | Grams (anonymous owner) | Closed in 2017 |
- 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)[18]
- 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)
- 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)
- 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[19]
- Wikia Search (defunct)
- WiseNut
- World Wide Web Worm
See also
References
External links
🔥 Top keywords: Main PageSpecial:SearchIndian Premier LeagueWikipedia:Featured picturesPornhubUEFA Champions League2024 Indian Premier LeagueFallout (American TV series)Jontay PorterXXXTentacionAmar Singh ChamkilaFallout (series)Cloud seedingReal Madrid CFCleopatraRama NavamiRichard GaddDeaths in 2024Civil War (film)Shōgun (2024 miniseries)2024 Indian general electionJennifer PanO. J. SimpsonElla PurnellBaby ReindeerCaitlin ClarkLaverne CoxXXX (film series)Facebook2023–24 UEFA Champions LeagueYouTubeCandidates Tournament 2024InstagramList of European Cup and UEFA Champions League finalsJude BellinghamMichael Porter Jr.Andriy LuninCarlo AncelottiBade Miyan Chote Miyan (2024 film)