PageSourceSearch / Technologies / JavaScript libraries / FlexSearch JavaScript libraries
Websites using FlexSearch
FlexSearch is a fast full-text search library for the browser and Node.js.
About 1,591 websites in the PageSourceSearch index contain the code that reveals it; the 50 highest-ranked are listed below.
How is FlexSearch detected?
The site's code creates a FlexSearch.Index or FlexSearch.Document. The discovery keyword is the exact bytes PageSourceSearch looks for in every stored page and script:
FlexSearch 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 FlexSearch
Top 50 websites using FlexSearch
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 19:31:58 UTC.
# Website Rank Found in
1
libreoffice.org 2,099
js https://www.libreoffice.org/js/fasts…1bae79a341a30089ff24.js
view source profile
2
svelte.dev 2,586
js https://svelte.dev/_app/immutable/chunks/mf4J78rW.js
view source profile
3
postgis.net 5,708
js https://postgis.net/js/search-83320133.bundle.min.js
view source profile
4
promptingguide.ai 7,874
js https://www.promptingguide.ai/_next/…914-1ae7ac5e3b7039bf.js
view source profile
5
ecowatch.com 8,986
js https://www.ecowatch.com/wp-content/…/main.js?ver=202613598
view source profile
6
creativelive.com 9,944
js https://www.creativelive.com/assets/…4dc52f5ed1e1985adc4e.js
view source profile
7
uni-graz.at 9,983
js https://ask.uni-graz.at/index.js
view source profile
8
documentfoundation.org 11,750
js https://www.documentfoundation.org/j…1bae79a341a30089ff24.js
view source profile
9
classdojo.com 13,797
js https://www.classdojo.com/app-b3d20622bf5a123b3960.js
view source profile
10
dailydoseofds.com 14,284
js https://www.dailydoseofds.com/assets…?v=AziU6dV9Z1HGNBSw
view source profile
11
lusha.com 15,118
js https://auth.lusha.com/_next/static/…irm-b938f091a32494fe.js
view source profile
12
betterstack.com 17,608
js https://betterstack.com/assets/compo…mandPalette-b76680c1.js
view source profile
13
ceda.ac.uk 18,395
js https://www.ceda.ac.uk/js/core.bundl…d87fa1efd489f3246ce9.js
view source profile
14
sudo.ws 21,765
js https://www.sudo.ws/js/search-835dce8f.bundle.min.js
view source profile
15
beamng.com 22,640
js https://beamng.com/game/inc/main.min.js?ver=495880282
view source profile
16
daylightcomputer.com 22,824
js https://daylightcomputer.com/_next/s…541-5464d6f6f82346eb.js
view source profile
17
coolmathgames.com 23,056
js https://www.coolmathgames.com/_next/…466-8427164a6bb905a9.js
view source profile
18
ruv.is 25,585
js https://simaskra.spilari.ruv.is/phonebook.js
view source profile
19
prometheus-operator.dev 33,784
js https://prometheus-operator.dev/inde…e3bfc9e9231b9ca7d467.js
view source profile
20
passkeys.dev 35,583
js https://passkeys.dev/js/core.bundle.…fcb5ee91e99321f5e203.js
view source profile
21
unito.io 43,845
js https://unito.io/wp-content/themes/u…/search-C5BggNPE.js
view source profile
22
aviasales.com 44,416
js https://static.aviasales.com/selene-…3676a90b434a244a.min.js
view source profile
23
y42.com 44,917
js https://www.y42.com/docs/_next/stati…493-090c63a92dc8e57a.js
view source profile
24
theia-ide.org 46,182
js https://theia-ide.org/1e3744750fb5f5…effeeb56754c4bcc9e55.js
view source profile
25
theclio.com 46,335
js https://theclio.com/_next/static/chu…eecebbeddd6d903ad748.js
view source profile
26
replayweb.page 48,618
js https://replayweb.page/ui.js
view source profile
27
lingopie.com 50,799
js https://lingopie.com/blog/assets/js/…?v=c4c695c83c
view source profile
28
isa-afp.org 51,823
js https://isa-afp.org/js/flexsearch.bundle.js
view source profile
29
bartoc.org 52,392
js https://bartoc.org/dist/assets/main-Bry2kMt4.js
view source profile
30
infotbm.com 53,281
js https://www.infotbm.com/_next/static/chunks/1w6yfvm3rvdg8.js
view source profile
31
apifox.com 53,399
js https://cdn.apifox.com/www/assets/js…/umd/sodo-search.min.js
view source profile
32
openspending.org 53,405
js https://www.openspending.org/_next/s…98e.4833ad6c0b3c95be.js
view source profile
33
economicsonline.co.uk 55,120
js https://www.economicsonline.co.uk/as…?v=27bc47ad2d
view source profile
34
artandwriting.org 56,811
js https://www.artandwriting.org/compon…8e507859bf9fbb62d43f.js
view source profile
35
starkravingfinkle.org 58,808
js https://starkravingfinkle.org/js/sea…a6e5d2c58ed4b82c2073.js
view source profile
36
nisrulz.com 66,473
js https://crushingcode.nisrulz.com/en.…71f21213882d9c391075.js
view source profile
37
eamag.me 67,090
js https://eamag.me/static/scripts/script-2-ec880d15.js
view source profile
38
geshergalicia.org 70,007
js https://www.geshergalicia.org/wp-con…/main.min.js?ver=1.76
view source profile
39
gamecon.cz 85,021
js https://gamecon.cz/soubory/ui/bundle…cd6e7723bac1a98042c03a7
view source profile
40
softorbits.net 87,028
js https://www.softorbits.net/static/js/main.ba7b48c2.js
view source profile
41
quickbox.io 87,740
js https://v3.quickbox.io/_next/static/…323-4cf2a593dd246ba0.js
view source profile
42
helpscout.com 88,190
js https://www.helpscout.com/component-…6f3f117e30447b998466.js
view source profile
43
speechnotes.co 88,773
js https://speechnotes.co/index.min.49e…f1d4cb04fd5ef77041d6.js
view source profile
44
inkdrop.app 91,518
js https://docs.inkdrop.app/_next/stati…374.86634a6de37cf116.js
view source profile
45
zeabur.com 92,036
js https://zeabur.com/docs/_next/static…123.bbe371272760b2bd.js
view source profile
46
fincabank.kg 93,418
js https://online.fincabank.kg/assets/javascripts/main.js
view source profile
47
churchapps.org 98,747
js https://churchapps.org/_next/static/…dor-c4d4255316256b31.js
view source profile
48
ttsreader.com 99,113
js https://ttsreader.com/index.min.1cd5…8785fd7901fedd599bd0.js
view source profile
49
podurama.com 99,662
js https://podurama.com/_next/static/ch…9bb1fda913f48bc09a29.js
view source profile
50
vio.com 100,567
html https://www.vio.com/
view source profile
How it appears in the source
From libreoffice.org (js):
let index = new FlexSearch.Document({ document: { index: [{ field: 'contents', tokenize: 'full' }], store: ['title','permalink','contents'] } }); le
See every site: search for FlexSearch
Questions about finding FlexSearch
How does PageSourceSearch know a website uses FlexSearch?
By the source itself: The site's code creates a FlexSearch.Index or FlexSearch.Document. 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 FlexSearch?
No. The page lists the 50 highest-ranked sites in the index whose source holds the keyword, out of about 1,591 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 FlexSearch 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 FlexSearch with wp-content/plugins/ lists the WordPress sites that use FlexSearch.