How many companies use JSS?

TechLeads currently detects JSS on 99,738 websites. HTTP Archive's monthly crawl, a separate dataset, detected it on 178,806 pages in September 2026.

Who are JSS's biggest competitors?

By number of websites, the largest JavaScript frameworks technologies besides JSS are React (3,909,805), GSAP (2,253,655), Vue.js (1,900,274), Next.js (1,032,904), RequireJS (796,918).

Which companies use JSS?

Websites using JSS include samsung.com, picsart.com, what3words.com, segment.com, newatlas.com, fravega.com. The full list of 99,738 websites can be exported as a CSV for $29.

JSS market share and customers

As of October 8, 2026, JSS is used by 99,738 websites in the TechLeads index: 0.59% of all JavaScript frameworks detections, the 25th most-used of 79 JavaScript frameworks technologies.

99,738

websites using JSS

0.59%

share of JavaScript frameworks

#25

of 79 in JavaScript frameworks

Cite this data

Quoting these numbers? Credit TechLeads with a link to this page.

Citation

TechLeads. "JSS Customers and Market Share." Data as of October 8, 2026. https://techleads.fyi/technology/jss/market-share

HTML link

<a href="https://techleads.fyi/technology/jss/market-share">JSS market share (TechLeads data)</a>

JSS vs competitors in JavaScript frameworks

Websites using each technology in the TechLeads index, and its share of all JavaScript frameworks detections.

#	Technology	Websites	Share
1	React	3,909,805	23.0%
2	GSAP	2,253,655	13.2%
3	Vue.js	1,900,274	11.2%
4	Next.js	1,032,904	6.1%
5	RequireJS	796,918	4.7%
6	WOW	693,733	4.1%
7	styled-components	473,172

JSS usage over time

In HTTP Archive's monthly crawl of public websites, JSS was detected on 178,806 pages in September 2026, down 18.0% from a year earlier (peak: 267,281). HTTP Archive is a separate dataset from the TechLeads index, so its numbers are not added to ours.

Same month, other JavaScript Frameworks technologies in HTTP Archive: React 7,210,181, GSAP 4,697,200, Vue.js 2,655,312, Next.js 2,090,368, Next.js App Router 1,514,274.

JSS customers by country

Based on country-code domains (such as .de or .co.uk); websites on .com and other generic domains are not assigned a country.

US211
FR118
GB85
DE51
AU34
SG31
BR29
NL28
CH23
CA22

Companies using JSS

samsung.com · Samsung pl
picsart.com
what3words.com
segment.com · Segment
newatlas.com
fravega.com
mudah.my · Mudah.my - Malaysia's largest marketplace
natura.com.br
rtl.nl
jbhifi.com.au
teacherspayteachers.com
asics.com

See all 99,738 websites using JSS or download the full list as a CSV for $29.

How these numbers are calculated

TechLeads scans public websites and detects JSS from signals in the page HTML, scripts, cookies, HTTP headers and DNS records. Market share is JSS's website count divided by the website counts of all JavaScript frameworks technologies we track; a site using two JavaScript frameworks tools counts for both. Counts were last refreshed on October 8, 2026 and update daily.

FAQ

JSS accounts for 0.59% of JavaScript frameworks detections in the TechLeads index (99,738 websites), which makes it the 25th most-used of 79 JavaScript frameworks technologies we track.