PageSourceSearch

JavaScript frameworks

Websites using Flutter (web)

Flutter is Google's UI toolkit; its web target compiles Dart apps to JavaScript or WebAssembly. About 4,093 websites in the PageSourceSearch index contain the code that reveals it; the 50 highest-ranked are listed below.

How is Flutter (web) detected?

Flutter's web bootstrap starts the app through _flutter.loader, in index.html or the generated flutter_bootstrap.js. The discovery keyword is the exact bytes PageSourceSearch looks for in every stored page and script:

_flutter.loader Search the index for it

A literal is matched byte for byte, case-sensitively. Combine it with another keyword, a domain, a kind or a date filter on the search page to narrow the list. About Flutter (web)

Top 50 websites using Flutter (web)

Ranked by the domain's position in the crawl's ranked list (Common Crawl harmonic centrality), highest first. view source opens the stored page or script with the match highlighted. Computed 2026-09-29 18:53:50 UTC.

#WebsiteRankFound in
1 ussoccer.com 18,108 js https://cdne.ussoccer.com/ussoccer_e…/flutter_bootstrap.js view source profile
2 dartpad.dev 18,995 html https://dartpad.dev/ view source profile
3 enac.gov.it 34,068 html https://www.enac.gov.it/ view source profile
4 proofreadbot.com 37,314 html https://proofreadbot.com/app/ view source profile
5 webascore.co.uk 38,808 js https://app.webascore.co.uk/flutter_bootstrap.js view source profile
6 flutterflow.io 51,507 html https://app.flutterflow.io/create-account view source profile
7 heygotrade.com 51,530 js https://ultra.heygotrade.com/flutter_bootstrap.js view source profile
8 littlegolem.net 55,344 html https://www.littlegolem.net/app/ view source profile
9 alpari.com 58,759 js https://alpari.com/_next/static/chun…210-3c1dfea20a119866.js view source profile
10 hdfcergo.com 61,673 html https://mobility.hdfcergo.com/wcm/portal/ view source profile
11 omnichess.club 62,721 js https://omnichess.club/flutter_bootstrap.js view source profile
12 eezy.fi 64,212 html https://talent.core.eezy.fi/home view source profile
13 curious.com 68,862 html https://curious.com/ view source profile
14 evermos.com 68,961 js https://evermos.com/flutter_bootstrap.js view source profile
15 crackittoday.com 82,736 html https://crackittoday.com/web/ view source profile
16 cleanster.com 88,378 js https://app.cleanster.com/flutter_bootstrap.js view source profile
17 kotakneo.com 88,749 js https://trade.kotakneo.com/flutter_bootstrap.js view source profile
18 finchcare.com 88,866 js https://finchcare.com/flutter_bootstrap.js view source profile
19 beyondend.dev 89,523 js https://beyondend.dev/flutter_bootstrap.js view source profile
20 tokiomarine.com.br 91,670 js https://autoatendimento.tokiomarine.…/flutter_bootstrap.js view source profile
21 materdei.com.br 94,731 html https://meu.materdei.com.br/login view source profile
22 backgammongalaxy.com 99,081 js https://www.backgammongalaxy.com/pla…bootstrap.js?v=60242692 view source profile
23 lifebible.com 102,341 js https://lifebible.com/flutter_bootstrap.js view source profile
24 traderise.com 103,167 js https://app.traderise.com/flutter_bootstrap.js view source profile
25 sporat.fi 107,271 js https://sporat.fi/flutter_bootstrap.js view source profile
26 parkedin.com 109,471 html https://parkedin.com/ view source profile
27 dechen.study 109,888 js https://app.dechen.study/flutter_bootstrap.js view source profile
28 liverriskscore.com 115,338 js https://www.liverriskscore.com/flutter_bootstrap.js view source profile
29 kitchenowl.org 117,930 js https://app.kitchenowl.org/flutter_bootstrap.js view source profile
30 i18nature.com 118,207 js https://app.i18nature.com/flutter_bootstrap.js view source profile
31 durak.click 118,509 js https://durak.click/web/flutter_bootstrap.js view source profile
32 pianoapp.click 118,510 html https://pianoapp.click/piano/ view source profile
33 primitivegamesstudio.com 119,858 html https://primitivegamesstudio.com/traveller.html view source profile
34 scape.sg 122,760 html https://www.scape.sg/myaccount/login view source profile
35 drahim.sa 122,790 js https://app.drahim.sa/flutter_bootstrap.js view source profile
36 soulmatcher.app 123,708 js https://soulmatcher.app/account/flutter_bootstrap.js view source profile
37 growthbundle.com 124,944 html https://my.growthbundle.com/account view source profile
38 pluxee.com.br 125,411 js https://consumidores.pluxee.com.br/c…/flutter_bootstrap.js view source profile
39 gigngo.org 126,433 html https://gigngo.org/g/auth?type=worker&mode=signup view source profile
40 quitnow.app 126,682 html https://my.quitnow.app/pricing view source profile
41 restis.app 127,563 js https://restis.app/foodandevents/flutter_bootstrap.js view source profile
42 markmywordsgame.com 128,127 js https://markmywordsgame.com/flutter_bootstrap.js view source profile
43 mapmarker.app 131,365 js https://www.mapmarker.app/webapp/flutter_bootstrap.js view source profile
44 fivebalance.com 131,469 js https://fivebalance.com/scamstomper/flutter_bootstrap.js view source profile
45 meeplay.io 132,091 js https://app.meeplay.io/flutter_bootstrap.js view source profile
46 maia.is 132,097 html https://maia.is/ view source profile
47 comprepifpaf.com.br 132,256 js https://www.comprepifpaf.com.br/pifmais/flutter_bootstrap.js view source profile
48 pocketpiano.app 133,864 js https://pocketpiano.app/web/flutter_bootstrap.js view source profile
49 coachingapps.ch 133,960 html https://www.coachingapps.ch/webapp-start/ view source profile
50 socialchess.com 134,564 js https://socialchess.com/flutter_bootstrap.js view source profile

How it appears in the source

From ussoccer.com (js):

s._didCreateEngineInitializerResolve(t),this._didCreateEngineInitializerResolve=null,delete _flutter.loader.didCreateEngineInitializer),typeof this._onEntrypointLoaded=="function"&&this._onEntrypointL

See every site: search for _flutter.loader

Questions about finding Flutter (web)

How does PageSourceSearch know a website uses Flutter (web)?
By the source itself: Flutter's web bootstrap starts the app through _flutter.loader, in index.html or the generated flutter_bootstrap.js. PageSourceSearch stores the raw HTML and first-party JavaScript of each crawled site and matches the keyword byte for byte, so every listed site's stored source contains it.
Is this a complete list of websites using Flutter (web)?
No. The page lists the 50 highest-ranked sites in the index whose source holds the keyword, out of about 4,093 websites that do; the count is the index's estimate at the time the list was computed. Run the keyword as a search to page through all of them, or add a kind or date filter.
How do I find websites that use Flutter (web) together with another technology?
Search for both keywords at once: several terms separated by spaces must all be found on the same site, or with the Same page toggle in the same page. For example _flutter.loader with wp-content/plugins/ lists the WordPress sites that use Flutter (web).