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webR on new websites

Build of the R statistical language compiled to WebAssembly for running R code in the browser.

Sites using webR
11
since Jul 2026
Last 30 days
0.0%
of new sites, to Oct 19
no change on the 30 days before
Last 7 days
0.0%
of new sites, 7-day average
no change on the week before
Rank in Javascript Library
#932
of 1553 tools, all time
First seen Jul 9, 2026
Last seen Oct 14, 2026
Website docs.r-wasm.org

What we found

  1. webR appeared on 3 new sites in the last 30 days.[1]

Share of new sites using webR

0.0000% 0.0001% 0.0002% 0.0003% 0.0004% 13 Sep Oct

The line is the 7-day average share of new sites that use webR, since 13 September. It starts at our first detection.

Who uses webR

Domain ending 11 sites
EndingSitesShareBar
.com 4 36.4%
.app 3 27.3%
.org 2 18.2%
.co 1 9.1%
.uk 1 9.1%

Javascript Library on new sites

# Movement Tool Share of all sites Share of category[2] Bar
1 – jQuery 14.1% 34.4%
2 – React Router 6.6% 16.2%
3 – Motion 6.0% 14.5%
4 – TanStack Router 4.4% 10.7%
5 – Swiper 3.4% 8.2%
…
932 ▲203 webR <0.1% <0.1%

All-time shares across the new sites we track: of all of them, and of the sites using any Javascript Library tool. Among September launches it ranked #861 in Javascript Library, up from #1064 in August. All 1553 in Javascript Library

Recently launched products built on webR

9 of the 11 sites using webR are product launches we list individually. The other 2 are new business and personal sites: they count towards the figures above but are not listed here. A watch sends them to you.

Site Found Also detected
Elasticnote elasticnote.com · Productivity Oct 14 Akamai Apache Cloudflare DNS Cloudflare Turnstile
IRBIS | Governed AI for Research Institutions irbisanalytics.com · Kazakhstan Sep 29 React Vercel Google Fonts Lucide Icons
acgtify · bioinformatics you actually run acgtify.com Sep 20 Next.js React Cloudflare
Acttuary: get hired as a UK actuary acttuary.com Sep 7 Next.js React Vercel Clerk
CalcX · Online Calculators and All-in-One Math Workbench calcx.org · Education Sep 5 Cloudflare ExchangeRate-API Frankfurter Lucide Icons
AskStat — an AI that answers with data and verifiable code askstat.app · AI Aug 18 Netlify jsDelivr Leaflet NS1
Figura — clinical manuscript figures & statistics figurastats.org Aug 5 GitHub Pages Cloudflare Fastly
Grongy — AI Research Assistant for Academic Writing grongy.co · Education Jul 20 Next.js React Caddy Cloudflare
ColabYard — AI-Assisted, Gamified Learning for Trainers colabyard.co.uk · Education · United Kingdom Jul 19 Next.js React Vercel Anthropic

Watches, exports and the API give you all 11 sites using webR, from £15 a month.

Notes

  1. These figures cover websites that went live since April 2026, not the web as a whole.
  2. Some products people expect to see here are filed under a related category: UI Library.

How this page is made

FirstSited looks at each new website near the day it goes live and records what it was built with. We do not go back later, so these figures describe what sites launch with, not what they run today. A site counts towards webR when we detect webR on it at that look.

Every share on this page is a proportion of the new sites we were tracking at the time. Sites we found across the wider web count towards the figures, but only product launches are listed by name. How we detect technologies · How we find new sites

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.