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Sites built with UAParser.js

JavaScript library for detecting browser, engine, OS and device from the user agent.

#68 of 831 in Javascript Library First seen: Jun 29, 2026 Last seen: Aug 20, 2026 Website: github.com
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937 sites

931 found by StackScope, 6 via launch platforms

StackScope Wider Web 921 StackScope Discovery (Indie) 10 Product Hunt 6
  • StackScope Wider Web 921
  • StackScope Discovery (Indie) 10
  • Product Hunt 6
View: All sites All launches Launch platforms StackScope Discovery StackScope Wider Web
Last 7 days 0.1% -0.0pp
Most used with Cloudflare, Google Analytics, Google Tag Manager
Top product types E-commerce, Health, Games

UAParser.js has been detected on 937 launches we've crawled, with 627 of those in August 2026 (0.1% of the month's launches so far). The 7-day rolling share is 0.1%, roughly steady week on week. Most recent detection: yourwish.app | Your wish, carried by every AI in the universe, today.

It's most commonly paired with Cloudflare, Google Analytics, and Google Tag Manager. By product type, the launches using it are most often E-commerce (21%), Health (18%), and Games (11%). By estimated origin, Russia leads (42%), ahead of New Zealand (18%). By domain ending, launches using it are 9.1 times as likely as the average launch to live on a .store domain.

What kind of products ship with UAParser.js

196 launches

E-commerce
20.92%
Health
17.86%
Games
11.22%
Education
10.71%
Marketing
9.18%
Productivity
8.16%
Content
5.61%
Design
4.08%
Finance
4.08%
Developer Tools
3.06%
Social
2.04%
AI
1.02%
Hiring & HR
1.02%
Crypto
0.51%
Directory
0.51%

Domain endings using UAParser.js

937 sites

  • .com 50.48%
  • .nz 7.15%
  • .in 6.94%
  • .store 5.02%
  • .site 4.27%
  • .online 3.42%
  • .xyz 3.42%
  • .net 2.13%
  • .ca 2.03%
  • .me 2.03%
  • .uk 1.92%
  • .org 1.71%
  • .co 1.60%
  • .art 1.07%
  • .io 0.75%

Country-coded domains

400 of 937 sites. Mostly read from the domain ending, so the US is undercounted.

  • Russia Russia 42.25%
  • New Zealand New Zealand 17.50%
  • India India 15.00%
  • Canada Canada 4.25%
  • United Kingdom United Kingdom 4.00%
  • Indonesia Indonesia 3.25%
  • Vietnam Vietnam 2.00%
  • Sweden Sweden 1.75%
  • United States United States 1.50%
  • China China 1.25%
  • Netherlands Netherlands 1.00%
  • Switzerland Switzerland 0.75%
  • Brazil Brazil 0.50%
  • Germany Germany 0.50%
  • Iran Iran 0.50%

Share of new sites using UAParser.js

Each dot is one launch day. Line is the 7-day rolling average. Chart starts at first detection.

0.1%
last 7 days
-0.0pp vs prior week
0.1%
August so far
627 of 799,123 sites
937
sites all time
since Jun 2026
UAParser.js daily detection trend Before 8 July 2026: launch platforms only. We began crawling the wider web on this date, so the cohort this share is measured against changes here. 5% 2% 0% Jul Aug Jul 1, 2026: Adoption figures now count launches from launch platforms. Use the source view to include StackScope Discovery. Jun 22 · 0 / 575 = 0.0% Jun 23 · 0 / 901 = 0.0% Jun 24 · 0 / 737 = 0.0% Jun 25 · 0 / 618 = 0.0% Jun 26 · 0 / 534 = 0.0% Jun 27 · 0 / 431 = 0.0% Jun 28 · 0 / 383 = 0.0% Jun 29 · 1 / 501 = 0.2% Jun 30 · 0 / 801 = 0.0% Jul 1 · 0 / 795 = 0.0% Jul 2 · 1 / 604 = 0.2% Jul 3 · 0 / 497 = 0.0% Jul 4 · 0 / 411 = 0.0% Jul 5 · 0 / 367 = 0.0% Jul 6 · 0 / 551 = 0.0% Jul 7 · 0 / 1167 = 0.0% Jul 8 · 3 / 12565 = 0.0% Jul 9 · 10 / 23710 = 0.0% Jul 10 · 11 / 22515 = 0.0% Jul 11 · 2 / 15953 = 0.0% Jul 12 · 8 / 20262 = 0.0% Jul 13 · 7 / 20891 = 0.0% Jul 14 · 6 / 20371 = 0.0% Jul 15 · 6 / 17211 = 0.0% Jul 16 · 4 / 14236 = 0.0% Jul 17 · 10 / 19685 = 0.1% Jul 18 · 12 / 22626 = 0.1% Jul 19 · 12 / 25896 = 0.0% Jul 20 · 12 / 22525 = 0.1% Jul 21 · 12 / 21595 = 0.1% Jul 22 · 8 / 23155 = 0.0% Jul 23 · 4 / 16803 = 0.0% Jul 24 · 6 / 12779 = 0.0% Jul 25 · 3 / 8912 = 0.0% Jul 26 · 15 / 19900 = 0.1% Jul 27 · 12 / 33717 = 0.0% Jul 28 · 21 / 37985 = 0.1% Jul 29 · 40 / 49845 = 0.1% Jul 30 · 25 / 43660 = 0.1% Jul 31 · 53 / 50734 = 0.1% Aug 1 · 37 / 50174 = 0.1% Aug 2 · 44 / 49478 = 0.1% Aug 3 · 43 / 47966 = 0.1% Aug 4 · 30 / 37153 = 0.1% Aug 5 · 25 / 32500 = 0.1% Aug 6 · 75 / 36287 = 0.2% Aug 7 · 21 / 37650 = 0.1% Aug 8 · 22 / 39502 = 0.1% Aug 9 · 19 / 33949 = 0.1% Aug 10 · 27 / 28595 = 0.1% Aug 11 · 19 / 31765 = 0.1% Aug 12 · 32 / 33053 = 0.1% Aug 13 · 35 / 49315 = 0.1% Aug 14 · 30 / 50995 = 0.1% Aug 15 · 29 / 50947 = 0.1% Aug 16 · 30 / 51248 = 0.1% Aug 17 · 54 / 40560 = 0.1% Aug 18 · 20 / 52292 = 0.0% Aug 19 · 35 / 45694 = 0.1%
Jun 22, 2026 59 days Aug 19, 2026

The shaded part of the chart is measured against a different set of sites. Until 8 July 2026 we only tracked launches from launch platforms; from that date we crawl the wider web as well. The share is a proportion of whatever we were tracking at the time, so it can step at that line without the technology itself changing. For a single continuous measure, switch to launch platforms.

How StackScope detects technologies

⋮ Jul 1, 2026: Adoption figures now count launches from launch platforms. Use the source view to include StackScope Discovery.

Javascript Library leaders

Tool % of launches % of category
#1 ▲1 jQuery 12.76% 32.44%
#2 ▼2 Motion 7.40% 18.81%
#3 ▲1 React Router 7.23% 18.39%
#4 – TanStack Router 4.25% 10.81%
#5 ▲5 Swiper 3.14% 7.98%
…
#68 ▲52 UAParser.js Current page 0.06% 0.16%

Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Javascript Library tool.Among July launches it ranked #76 in Javascript Library, up from #128 in June. All 831 in Javascript Library →

Often used with

Tool Launches
Cloudflare 4
Google Analytics 4
Google Tag Manager 4
HTTP/3 4
Cloudflare DNS 3

Tools most often detected on the same launches as UAParser.js.

Recent launches we can show

16 of the 937 sites using UAParser.js are product launches we list individually. The other 921 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. How StackScope Discovery works

yourwish.app | Your wish, carried by every AI in the universe Aug 18, 2026 AI TOOLKITA – Tool Online Gratis untuk Berbagai Kebutuhan Aug 16, 2026 Indonesia Productivity AZORA - Messenger with AI-based translator Aug 14, 2026 Russia Social AppFunder — Annual Access Funding for SaaS Aug 14, 2026 Finance What Is My User Agent? — Detect & Parse Your Browser | useragent.in Aug 11, 2026 India Developer Tools Staydries – Lekkasjesikre Boxershortser for Menn | Diskrete & Gjenbrukbare Aug 10, 2026 UnbelMarket — Bikin Website Toko Online Sendiri, Gratis Selamanya Aug 8, 2026 ATS Apps Store Aug 6, 2026 Productivity Screenshot of Muwajaha, a launch using UAParser.js Muwajaha Aug 5, 2026 · score 6.4 United States Productivity Ngelamar - Portal Lowongan Kerja & Loker Terbaru Indonesia Jul 29, 2026 Jurnal Akademik: Cari Jurnal Ilmiah Gratis SINTA & Scopus Jul 28, 2026 Indonesia GetAwarely — Η ενημέρωση σε βρίσκει Jul 26, 2026

Showing the most recent 12 of 16.

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