List of search engines

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	Multiple
Ecosia	Multilingual	Google and Microsoft Bing
Elasticsearch	Multilingual	Elasticsearch
Exalead	Multilingual	Cloudview
Excite†	Multilingual	Microsoft Bing
Google	Multilingual	Google
HotBot	English	Microsoft Bing
Kagi	English	Metasearch engine and Kagi
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
Presearch	Multilingual	Presearch
Qwant	Multilingual	Microsoft Bing
SearXNG	Multilingual	Metasearch engine
Sogou	Multilingual	Tencent
Startpage	English	Google
Swisscows	Multilingual	Microsoft Bing
WebCrawler	English	Microsoft Bing
YaCy	Multilingual	GNU GPL-2.0-or-later
Yahoo! Search†	Multilingual	Microsoft Bing
Yandex	Multilingual	Yandex
Yep	English	Yep
Youdao†	Chinese	NetEase
You.com	English	Microsoft Bing

† Main website is a portal
Open source

Geographically localized

Name	Language	Country
Accoona	Chinese, English	China, United States
BIGLOBE	Japanese	Japan
Daum	Korean	Korea
Nate	Korean	Korea
Egerin	Kurdish	Sweden
Fireball	German, English	Germany
Goo	Japanese	Japan
Leit.is	Icelandic, English	Iceland
Najdi.si	Slovenian	Slovenia
Naver	Korean	Korea
Parsijoo	Persian	Iran
Pipilika (defunct)	Bengali, English	Bangladesh
Rambler	Russian	Russia
Rediff		India
SAPO	Portuguese	Portugal
Search.ch		Switzerland
Sesam (defunct)		Norway, Sweden
Seznam	Czech	Czech Republic
Walla!		Israel
Yahoo Japan	Japanese	Japan (Google backend)
Yongzin	Tibetan	China
ZipLocal	English	Canada, United States

Business

• Business.com • Daily Stocks • GenieKnows (United States and Canada) • GlobalSpec • Nexis (Lexis Nexis) • Thomasnet (United States) • Justdial (India)

Content

• Openverse, search engine for open content.

Education

• BASE (search engine) • 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 • Zoho

Events

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

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) • Yahoo! HotJobs (Country-wise subdomains, International)

Legal

• Google Patents • Google Scholar • Lexis (Lexis Nexis) • Quicklaw • WestLaw

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 • Dailyhunt (India) • Priyo • Yahoo! News

People

• Whitepages • FindFace • PeekYou • Spokeo • Zabasearch.com • ZoomInfo

Real estate/property

• HotPads.com • Realtor.com • Redfin • Rightmove • StuRents.com • Trulia • Zillow • Zoopla

By data type

List of search engines

Search engines dedicated to a specific kind of information

Datasets

• Google Dataset Search

Source code

• Google Code Search • Koders • Krugle

BitTorrent

These search engines work across the BitTorrent protocol.

• BTDigg • Isohunt - discontinued • Mininova - discontinued • The Pirate Bay • TorrentSpy - discontinued • Torrentz - discontinued

Blog

• Amatomu • Bloglines • IceRocket • Marginalia • Mojeek (substack only) • Munax • Regator • Technorati

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.

<table><thead><tr><th>Name</th><th>Platform</th><th>Remarks</th><th>License</th></tr></thead><tbody><tr><td>HP Autonomy</td><td>Windows</td><td>IDOL Enterprise Desktop Search, HP Autonomy Universal Search.</td><td>Proprietary, commercial</td></tr><tr><td>Beagle</td><td>Linux</td><td>Open-source desktop search tool for Linux based on Lucene. Unmaintained since 2009.</td><td>Mix of X11/MIT, Apache</td></tr><tr><td>Copernic Desktop Search</td><td>Windows</td><td>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.</td><td>Proprietary (30 day trial)</td></tr><tr><td>DocFetcher</td><td>Cross-platform</td><td>Open-source desktop search tool for Windows and Linux, based on Apache Lucene</td><td>Eclipse Public</td></tr><tr><td>dtSearch Desktop</td><td>Windows</td><td></td><td>Proprietary (30 day trial)</td></tr><tr><td>Everything</td><td>Windows</td><td>Find files and folders by name instantly on NTFS volumes</td><td>Freeware</td></tr><tr><td>Found</td><td>macOS</td><td>Searches for files stored locally, and the cloud and inbox and, is summoned with a double-tap of the ctrl key. Program now discontinued.</td><td>Free, proprietary</td></tr><tr><td>GNOME Storage</td><td>Linux</td><td>Open-source desktop search tool for Unix/Linux</td><td>GPL</td></tr><tr><td>Google Desktop</td><td>Linux, macOS, Windows</td><td>Integrates with main Google search engine page; discontinued by Google September 14, 2011</td><td>Freeware</td></tr><tr><td>ISYS Search Software</td><td>Windows</td><td>ISYS:Desktop search software</td><td>Proprietary (14-day trial)</td></tr><tr><td>KRunner</td><td>Linux</td><td></td><td></td></tr><tr><td>Locate32</td><td>Windows</td><td>Graphical port of Unix's locate & updatedb</td><td>BSD</td></tr><tr><td>Lookeen</td><td>Windows</td><td>Desktop search product with Outlook plugin and limited support for other formats via IFilters, uses Lucene search engine.</td><td>Proprietary (14-day trial)</td></tr><tr><td>Nepomuk</td><td>Linux</td><td>Open-source semantic desktop search tool for Linux. Has been replaced by Baloo in KDE Applications from release 4.13 onward.</td><td>Mix of SA 3.0 and GNU Free Documentation v1.2</td></tr><tr><td>Recoll</td><td>Linux, Unix, Windows, macOS</td><td>Open-source desktop search tool for Unix/Linux</td><td>GPL</td></tr><tr><td>Spotlight</td><td>macOS</td><td>Found in Apple macOS "Tiger" and later OS X releases.</td><td>Proprietary</td></tr><tr><td>Strigi</td><td>Linux, Unix, Solaris, macOS, Windows</td><td>Cross-platform open-source desktop search engine. Unmaintained since 2011-06-02.</td><td>LGPL v2</td></tr><tr><td>Terrier Search Engine</td><td>Linux, macOS, Unix</td><td>Desktop search for Windows, Mac OS X Tiger, Unix/Linux.</td><td>Mozilla Public v1.1</td></tr><tr><td>Tracker</td><td>Linux, Unix</td><td>Open-source desktop search tool for Unix/Linux</td><td>GPL v2</td></tr><tr><td>Tropes Zoom</td><td>Windows</td><td>Semantic Search Engine (no longer available)</td><td>Freeware and commercial</td></tr><tr><td>Unity Dash</td><td>Linux</td><td>Was part of Ubuntu Desktop</td><td>GPL v3, LGPL v2.1</td></tr><tr><td>Windows Search</td><td>Windows</td><td>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 x86-64 systems.</td><td>Proprietary</td></tr><tr><td>X1 Desktop Search</td><td>Windows</td><td>Major desktop search product along with Copernic Desktop Search</td><td>Proprietary (14-day trial)</td></tr><tr><td>Wumpus</td><td>Cross platform</td><td>Desktop search focused on information retrieval research</td><td>GPL</td></tr></tbody></table>

Child-safe search engines

• Kiddle • KidRex • KidzSearch • QwantJunior • Swisscows

Metasearch engines

Name	Language
Dogpile	English
Excite	English
Info.com	English
Kayak.com	Multilingual
MetaCrawler	English
MetaGer	Multilingual
Mobissimo	Multilingual
Otalo.com	English
PCH Search and Win
SearXNG	Multilingual
Skyscanner	Multilingual
Wego.com	Multilingual

Natural language

• Ask.com • Bing (Semantic ability is powered by Powerset) • Lexxe • Perplexity.ai • SearchGPT

Web search engine

• Gigablast • Grub

P2P search engines

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

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

• ChaCha Search • Delver • Eurekster • Facebook Search • Mahalo.com • Rollyo • Sproose • Trexy

Usenet

• Google Groups (formerly Deja News)

Visual search engines

• FindFace • Grokker • Macroglossa • TinEye • Viewzi

Defunct or acquired search engines

List of search engines

<table><thead><tr><th>Name</th><th>Backend ownership</th><th>Demise</th></tr></thead><tbody><tr><td>iWon</td><td>Ask.com</td><td>Shut down after AT&T merger</td></tr><tr><td>Teoma</td><td>Ask.com</td><td>Merged to Ask.com which still uses its algorithms</td></tr><tr><td>A9.com</td><td>Microsoft Bing</td><td>Redirect to Amazon homepage (parent company)</td></tr><tr><td>AOL</td><td>Google until 2015, then Microsoft Bing</td><td>Merged to Yahoo!</td></tr><tr><td>Alexa Internet</td><td>Microsoft Bing</td><td>Bought by Amazon in 1999, shut down in 2021</td></tr><tr><td>Ciao!</td><td>Microsoft Bing</td><td>Shut down in 2018</td></tr><tr><td>Ms. Dewey</td><td>Microsoft Bing</td><td>January 2009</td></tr><tr><td>Groovle</td><td>Google</td><td>Taken over by Google after Google sued for name similarity</td></tr><tr><td>Mamma.com</td><td>Copernic</td><td></td></tr><tr><td>MySpace Search</td><td>Google</td><td>Function taken over by Google in 2006</td></tr><tr><td>Mystery Seeker</td><td>Google</td><td>Novelty "search"; went offline in 2017</td></tr><tr><td>Netscape</td><td>Google</td><td>Now redirects to AOL</td></tr><tr><td>Ripple</td><td>Google</td><td>as of 2017 at the latest</td></tr><tr><td>Ecocho</td><td>Google, then Yahoo!</td><td></td></tr><tr><td>Forestle</td><td>Google, then Yahoo!</td><td>Redirected to Ecosia in 2011</td></tr><tr><td>Searx</td><td>open-source</td><td>SearXNG is defacto successor</td></tr><tr><td>Yippy</td><td>IBM Watson</td><td>Re-branded in 2023 as Togoda.com</td></tr><tr><td>Grams</td><td>Grams (anonymous owner)</td><td>Closed in 2017</td></tr><tr><td>Gigablast</td><td>English</td><td>Website went offline in 2023, as reported by Mojeek.</td></tr></tbody></table>

• 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) • 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 • Neeva (acquired by Snowflake) • 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 • Wikia Search • WiseNut • World Wide Web Worm