List of search engines


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.

By content/topic

General

NameLanguageAlexa global ranking
AOL Search*Multilingual378 †
Ask.com**Multilingual234
BaiduChinese6
BingMultilingual47
Dogpile***English10,603
DuckDuckGo*Multilingual181
Ecosia*Multilingual700
ExaleadMultilingual116,560
Excite*Multilingual40,694 †
GigablastEnglish135,070
GoogleMultilingual1
HotBot*English298,374
LycosMultilingual36,396
MetaCrawler***English50,489
MojeekMultilingual148,996
Qwant*Multilingual2,158
Searx***Multilingual93,323
SogouChinese162
SosoChinese117
Startpage.com**English1,946
Swisscows*Multilingual232,931
WebCrawler*English4,264
Yahoo!*Multilingual12 †
YandexMultilingual1,060
Yippy***English137,607
YoudaoChinese260

* Powered by Bing
** Powered by Google
*** Metasearch engine
† Main website is a portal

Based on

Based on Ask.com (formerly)

Accountancy

General:
Academic materials only:
Search engines dedicated to a specific kind of information

Maps

These search engines work across the BitTorrent protocol.

Human answers

Search appliances

engines listed on a light purple background are no longer in active development.
NamePlatformRemarksLicense
AutonomyWindowsIDOL Enterprise Desktop Search, HP Autonomy Universal Search.
BeagleLinuxOpen source desktop search tool for Linux based on Lucene. Unmaintained since 2009.
Copernic Desktop SearchWindowsMajor desktop search program. The full trial version downgrades after the trial period automatically to the free version, which is limited to indexing a maximum of 10.000 files.
DocFetcherCross-platformOpen source desktop search tool for Windows and Linux, based on Apache Lucene
dtSearch DesktopWindows
EverythingWindowsFind files and folders by name instantly on NTFS volumes
GNOME StorageLinuxOpen Source desktop search tool for Unix/Linux
Google DesktopLinux, Mac OS X, WindowsIntegrates with the main Google search engine page. 5.9 Release supports x64 systems. As of September 14, 2011, Google has discontinued this product.
ISYS Search SoftwareWindowsISYS:desktop search software.
Locate32WindowsGraphical port of Unix's locate & updatedb
LookeenWindowsDesktop search product with Outlook plugin and limited support for other formats via IFilters, uses Lucene search engine.
NepomukLinuxOpen 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
RecollLinux, Unix, Windows, macOSOpen Source desktop search tool for Unix/Linux
SpotlightmacOSFound in Apple Mac OS X "Tiger" and later OS X releases.
StrigiLinux, Unix, Solaris, Mac OS X and WindowsCross-platform open source desktop search engine
Terrier Search EngineLinux, Mac OS X, UnixDesktop search for Windows, Mac OS X, Unix/Linux.
TrackerLinux, UnixOpen source desktop search tool for Unix/Linux
Tropes ZoomWindowsSemantic Search Engine
Unity DashLinuxPart of Ubuntu Desktop, LGPL v2.1
Windows SearchWindowsPart 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.
X1 Desktop SearchWindowsMajor desktop search product along with Copernic Desktop Search.

Kids' safe search engines

NameLanguage
DogpileEnglish
ExciteEnglish
Info.comEnglish
Kayak.comMultilingual
Mamma.com
MetacrawlerEnglish
MobissimoMultilingual
Otalo.comEnglish
Publisher's clearinghouse Search and Win
SearxMultilingual
SkyscannerMultilingual
Yippy English

Natural language

NameLanguage
FAROOEnglish
Seeks English
YaCy Multilingual

Privacy search engines

Social search engines

Defunct or acquired search engines