JS On/Off

by Magnus Brath · magnusbrath.com · Developer Tools

Manifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

Toggle JavaScript on or off for the current website with one click.

Users

+1 in 30 days

Rating

5.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#163K

#136K among extensions

Version

1.0.0

updated 8 Aug 2026

Users

monthly, 2 months

Latest, 16 Oct 2026: 16 usersMove the mouse over the chart for any month

Ratings count

monthly, 2 months

Latest, 16 Oct 2026: 1 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About JS On/Off

JavaScript rendering makes SEO work unnecessarily difficult. Sometimes you just need to know one thing: what does this page look like without client-side JavaScript? Normally that means opening developer tools, changing browser settings, disabling JavaScript, reloading the page, and then remembering to turn everything back on again. JS On/Off makes it a single click. Click the extension icon to disable JavaScript for the current website and automatically reload the page. Click it again to turn JavaScript back on. It is the simplest possible way for SEOs, developers, and technical marketers to quickly compare a normally rendered page with what is available without client-side JavaScript. No complicated interface. No reports. No accounts. No external services. Just JavaScript on or off.