Breakpoint Tester

Easily switch between multiple breakpoints to test a sites responsiveness at various screen sizes.

Breakpoint Tester - Test website responsiveness

Breakpoint Tester is a Chrome extension that allows you to quickly and easily test the responsiveness of a website at various breakpoints. It comes with preset breakpoints or you can use your own. It is open source and welcomes contributions. Feedback is encouraged.
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Extension stats

Manifest V2
Users: 5,504+
Rating: 3.68
(22)
Version: 1.0.4 (Last updated: 2014-04-18)
Creation date: 2014-04-18
Permissions:
  • storage
  • contextMenus
  • system
  • system.cpu
  • system.memory
  • system.storage
Size: 169.98K
Full description: See detailed description

Other platforms

Not available on Android
Not available on Firefox
Not available on Edge

User reviews

This extension does NOTHING. No matter what I click, NOTHING happens.
by Sergio Vazquez II, 2021-07-08
Great extension for web devs
by 7b3n, 2020-07-08
Does not take in account developer tools width :(
by Vlad Ovchinnikov, 2019-08-19
View all user reviews

Extension safety

Risk impact

Breakpoint Tester requires very minimum permissions.

Risk impact analysis details
  • Medium Access to storage systems, low risk if data handling practices are secure.
  • Low ******* ****** ** *** ********* ********
Risk likelihood

We don't have sufficient data to confidently determine the risk likelihood of Breakpoint Tester. Use it at your own risk.

Risk likelihood analysis details
  • Critical This extension is not longer available in the store
Upgrade to see full risk analysis details

Promo images

Breakpoint Tester marquee promo image
Marquee promo image
Breakpoint Tester small promo image
Small promo image

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