disable-devtool on new websites

JavaScript library that detects and blocks browser developer tools from being opened on a page.

Sites using disable-devtool
215
since Jul 2026
Last 30 days
0.0%
of new sites, to Oct 22
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
#281
of 1,572 tools, all time
First seen Jul 8, 2026
Last seen Oct 23, 2026
Website github.com

What we found

  1. disable-devtool appeared on about 85 new sites in the last 30 days.[1]
  2. Six in ten new disable-devtool sites also use jsDelivr.

Share of new sites using disable-devtool

0.000% 0.002% 0.004% 0.006% 0.008% 10 Sep Oct

The line is the 7-day average share of new sites that use disable-devtool, since 10 September.

Who uses disable-devtool

Kind of site 48 sites with a known type
TypeSitesShareBar
Crypto 11 22.9%
Games 8 16.7%
E-commerce 6 12.5%
Marketing 6 12.5%
Finance 4 8.3%
Developer Tools 3 6.3%
Content 2 4.2%
Education 2 4.2%
Productivity 2 4.2%
Social 2 4.2%
AI 1 2.1%
Design 1 2.1%
Country[2] 13 sites with a likely country
CountrySitesShareBar
India 4 30.8%
China 3 23.1%
France 2 15.4%
UK 2 15.4%
US 1 7.7%
Vietnam 1 7.7%
Domain ending 218 sites
EndingSitesShareBar
.com 125 57.3%
.online 22 10.1%
.xyz 21 9.6%
.site 15 6.9%
.in 6 2.8%
.live 5 2.3%
.co 3 1.4%
.store 3 1.4%
.io 2 0.9%
.me 2 0.9%
.net 2 0.9%
.org 2 0.9%

Javascript Library on new sites

# Movement Tool Share of all sites Share of category[3] Bar
1 – jQuery 14.0% 34.5%
2 – React Router 6.6% 16.2%
3 – Motion 5.9% 14.5%
4 – TanStack Router 4.4% 10.8%
5 – Swiper 3.3% 8.2%
6 ▲1 ES Module Shims 2.8% 6.9%
7 ▲1 js-cookie 2.5% 6.0%
8 ▼2 Modernizr 2.4% 5.9%
9 – GSAP 1.9% 4.6%
10 ▼1 Lenis 1.4% 3.4%
11 ▼1 Masonry 1.3% 3.2%
12 – Three.js 1.3% 3.1%
…
281 ▼21 disable-devtool <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 #309 in Javascript Library, down from #288 in August. All 1572 in Javascript Library

Often used with disable-devtool

Tool Sites with both vs all new sites Bar
jsDelivr 126 13x
Bootstrap 49 5.4x
jQuery 64 2.1x

Tools that turn up far more often on disable-devtool sites than on new sites in general, and how many times as common each one is there.

Recently launched products built on disable-devtool

5 of the 215 sites using disable-devtool are product launches we list individually. The other 210 are new business and personal sites: they count towards the figures above but are not listed here. A watch sends them to you.

Watches, exports and the API give you all 215 sites using disable-devtool, from £15 a month.

Notes

  1. These figures cover websites that went live since April 2026, not the web as a whole.
  2. Country comes from what each site says about itself, such as a company registration, legal terms or a phone number, not just its domain ending. Too few sites state their country plainly for the usual count, so this one also counts single signals: a country domain ending, a phone number (for North America, its area code), a location the site declares in its own page metadata, or a country-specific vendor stack and the page language where they agree and nothing contradicts them. Read these as likely rather than certain.
  3. 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 disable-devtool when we detect disable-devtool 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.