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.
* Powered by Bing
Based on Ask.com
Hakia (semantic search)
iWon
Lycos
Teoma
Based on Bing
A9.com
AOL, from 2015
Alexa Internet
Ciao!
Facebook
Ms. Dewey
Egerin
Based on Google
AOL Search, until 2015.
CompuServe Search
Groovle
MySpace Search
Mystery Seeker
Netscape
Ripple
BOL
Based on Yahoo!
Ecocho
Everyclick (formerly based on Ask.com)
Forestle (an ecologically motivated site supporting sustainable rain forests – formerly based on Google)
GoodSearch
Rectifi
Ahmia
Grams
TorSearch
Mobile/handheld
Taganode Local Search Engine
Taptu: taptu mobile/social search
URX: App Search
IFACnet
Business.com
Getit Infoservices Private Limited
GenieKnows (United States and Canada)
GlobalSpec
Nexis (Lexis Nexis)
Majestic Search Engine
Thomasnet (United States)
Shodan (website)
General:
Chegg
Noodle Education
SkilledUp
Academic materials only:
BASE (search engine)
CiteULike
Google Scholar
Library of Congress
Funnelback: Funnelback Search
Jumper 2.0: Universal search powered by Enterprise bookmarking
Oracle Corporation: Secure Enterprise Search 10g
Q-Sensei: Q-Sensei Enterprise
TeraText: TeraText Suite
SimilarWeb
Swiftype: Swiftype Search
RecipeBridge: vertical search engine for recipes
Yummly: semantic recipe search
Mocavo.com: family history search engine
Adzuna (UK)
Bixee.com (India)
CareerBuilder.com (USA)
Craigslist (by city)
Dice.com (USA)
Eluta.ca (Canada)
Hotjobs.com (USA)
JobStreet.com (Southeast Asia, Japan and India)
Incruit (Korea)
Indeed.com (USA)
Glassdoor.com (USA)
LinkUp.com (USA)
Monster.com (USA), (India)
Naukri.com (India)
Yahoo! HotJobs (Countrywise subdomains, International)
Google Scholar
Lexis (Lexis Nexis)
Quicklaw
WestLaw
Bing Health
Bioinformatic Harvester
CiteAb (antibody search engine for medical researchers)
EB-eye EMBL-EBI's Search engine
Entrez (includes Pubmed)
GenieKnows
GoPubMed (knowledge-based: GO – GeneOntology and MeSH – Medical Subject Headings)
Healia
Healthline
Nextbio (Life Science Search Engine)
PubGene
Quertle (Semantic search of the biomedical literature)
Searchmedica
WebMD
Bing News
Daylife
Google News
MagPortal
Newslookup
Nexis (Lexis Nexis)
Topix.net
Trapit
Yahoo! News
Ex.plode.us
FindFace
InfoSpace
PeekYou
Spock
Spokeo
Zabasearch.com
ZoomInfo
HotPads.com
Realtor.com
Redfin
Rightmove
Trulia
Zillow.com
Zoopla
StuRents.com
TV Genius
Wazap (Japan)
Bing Maps
Géoportail
Google Maps
MapQuest
Nokia Maps
OpenStreetMap
Wikiloc
WikiMapia
Yahoo! Maps
Bing Videos
blinkx
FindSounds
Google Video
Munax's PlayAudioVideo
Picsearch
Pixsta
Podscope
ScienceStage
SeeqPod
Songza
TinEye
TV Genius
Veveo
Yahoo! Video
Bing Shopping
Google Shopping (formerly Google Product Search and Froogle)
Kelkoo
MySimon
PriceGrabber
PriceRunner
PriceSCAN
Pronto.com
Shopping.com
ShopWiki
Shopzilla (also operates Bizrate)
SwoopThat.com
TheFind.com
Google Code Search
Koders
Krugle
Search appliance
Google Search Appliance
Fabasoft
Munax
Searchdaimon
Thunderstone
Desktop search
Desktop search engines listed on a light purple background are no longer in active development.
Metasearch engine
Ask.com
Bing (Semantic ability is powered by Powerset)
hakia
Lexxe
Gigablast
Grub
ht://Dig
Isearch
Lemur Toolkit & Indri Search Engine
Lucene
mnoGoSearch
Namazu
Nutch
Recoll
Searchdaimon
Seeks
Sphinx
SWISH-E
Terrier Search Engine
Xapian
YaCy
Zettair
DuckDuckGo
Ixquick (StartPage)
Social and environmental focus
Ecosia
Hakia
Yebol
ChaCha Search
Delver
Eurekster
Mahalo.com
Rollyo
SearchTeam
Sproose
Trexy
Google Groups (formerly Deja News)
Visual search engine
ChunkIt!
FindFace
Grokker
Pixsta
PubGene
TinEye
Viewzi
Macroglossa
Search engines dedicated to a specific kind of information
These search engines work across the BitTorrent protocol.
BTDigg
Isohunt
Mininova
The Pirate Bay
TorrentSpy
Torrentz
Amatomu
Bloglines
IceRocket
Munax
Regator
Technorati
TEK
Omgili
Answers.com
Ask Me Help Desk
DeeperWeb
eHow
Quora
Stack Overflow/Stack Exchange Network
Uclue
wikiHow
Yahoo! Answers
AskMeNow
BrainBoost
True Knowledge
Wolfram Alpha
AlltheWeb
AltaVista (acquired by Yahoo! in 2003, shut down in 2013)
Blekko (acquired by IBM in 2015 for its use for Watson-based products)
BlogScope
Brainboost (Public engine no longer exists, acquired by Answers, Inc.)
BRS/Search (now OpenText Livelink ECM Discovery Server)
Btjunkie
Cuil
ChunkIt! (now "yolink!") (Public engine no longer exists)
Direct Hit Technologies (acquired by Ask Jeeves in January, 2000)
Google Answers
IBM STAIRS
Infoseek
Inktomi
Kartoo
LeapFish (Public engine no longer exists)
Lotus Magellan
MetaLib (Public engine no longer exists)
mozDex (No longer exists)
Myriad Search (No longer exists)
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
Speechbot
Sphere
Tafiti
Volunia
Wikia Search (defunct)
WiseNut
World Wide Web Worm
