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.

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By content/topic

General

{| class="wikitable sortable"

|-

! Name !! Language

!Backend ownership

|-

|Ask.com (defunct) || 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 ||

|-

|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 ||

|-

|Yahoo! Search†|| Multilingual

|Microsoft Bing

|-

|Yandex|| Multilingual

|Yandex

|-

|Yep

|English

|Yep

|-

|Youdao†|| Chinese

|NetEase

|-

|You.com || English

|Microsoft Bing

|}

{| class="wikitable"

| <nowiki>†</nowiki> Main website is a portal

|-

|

|}

Geographically localized

{| class="wikitable sortable"

|-

! 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 (defunct) || 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)

Computers

  • Shodan (website)

Content

  • Openverse, search engine for open content.

Dark web

  • Ahmia

Education

General:

  • Chegg

Academic materials only:

  • 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)
  • 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

Television

  • TV Genius

Travel

  • Bustripping

Video

  • Sepia Search

Video games

  • Wazap

By data type

Search engines dedicated to a specific kind of information

Datasets

  • Google Dataset Search

Maps

  • Baidu Maps
  • Bing Maps
  • Géoportail
  • Google Maps
  • MapQuest
  • Nokia Maps
  • OpenStreetMap
  • Petal Maps
  • Qwant Maps (defunct)
  • Tencent Maps
  • Wikiloc
  • WikiMapia
  • Yahoo! Maps
  • Yandex Maps
  • MapmyIndia

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)
  • Kelkoo
  • MySimon
  • PriceGrabber
  • PriceRunner
  • Pronto.com
  • Shopping.com
  • Shopzilla
  • TickX

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.

{|class="wikitable sortable" style="text-align=left;"

! Name

! Platform

! Remarks

! License

|-

! HP Autonomy

| Windows

| IDOL Enterprise Desktop Search, HP Autonomy Universal Search.

|

|-

! 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.

<!-- Can we remove this? It is not a relevant "remark" and the cited study is no longer available. See Talk:Desktop search#The article does not educate the reader and needs to be rewritten

Considered best overall search engine in 2005 UW benchmark study.

-->

|

|-

! DocFetcher

| Cross-platform

| Open-source desktop search tool for Windows and Linux, based on Apache Lucene

|

|-

! dtSearch Desktop

| Windows

|

|

|-

! Everything

| Windows

| Find files and folders by name instantly on NTFS volumes

|

|-

!Found

|macOS

|Searches for files stored locally, and the cloud and inbox and, is summoned with a double-tap of the ctrl key. Program now discontinued.

|Free, proprietary

|-

! | GNOME Storage

| Linux

| Open-source desktop search tool for Unix/Linux

|

|-

! | Google Desktop

| Linux, macOS, Windows

| Integrates with main Google search engine page; discontinued by Google September 14, 2011

|

|-

! ISYS Search Software

| Windows

| ISYS:Desktop search software

|

|-

!KRunner

|Linux

|

|

|-

! | Locate32

| Windows

| Graphical port of Unix's locate & updatedb

|

|-

! | Lookeen

| Windows

| Desktop search product with Outlook plugin and limited support for other formats via IFilters, uses Lucene search engine.

|

|-

! Nepomuk

| Linux

| Open-source semantic desktop search tool for Linux. Has been replaced by Baloo in KDE Applications from release 4.13 onward.

| Mix of SA 3.0 and GNU Free Documentation v1.2

|-

! Recoll

| Linux, Unix, Windows, macOS

| Open-source desktop search tool for Unix/Linux

|

|-

! Spotlight

| macOS

| Found in Apple macOS "Tiger" and later OS X releases.

|

|-

! | Strigi

| Linux, Unix, Solaris, macOS, Windows

| Cross-platform open-source desktop search engine. Unmaintained since 2011-06-02.

|

|-

! Terrier Search Engine

| Linux, macOS, Unix

| Desktop search for Windows, Mac OS X Tiger, Unix/Linux.

|

|-

! Tracker

| Linux, Unix

| Open-source desktop search tool for Unix/Linux

|

|-

! | Tropes Zoom

| Windows

| Semantic Search Engine (no longer available)

|

|-

! Unity Dash

| Linux

| Was part of Ubuntu Desktop

|