Clamptastic

by Patrick Heina · Developer Tools

FeaturedManifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

Helps you to calculate clamp()

Users

110

0 in 30 days

Rating

4.7 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#81K

#68K among extensions

Version

1.0

updated 11 Jul 2023

Users

monthly, 3 years

Latest, 16 Oct 2026: 110 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years

Latest, 16 Oct 2026: 3 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 Clamptastic

Clamptastic is a Chrome extension that simplifies the calculation of CSS clamp values. With this handy tool, you can effortlessly calculate clamp values for your CSS properties. What sets Clamptastic apart is its ability to dynamically fetch the root font size from the current tab, ensuring accurate calculations every time.