Responsive Tester

Test responsive web designs or mobile pages and see if it is mobile friendly

As of May 2026, Responsive Tester has 40,000 users and a 3.11/5 rating from 94 reviews in the Workflow & Planning category.

Usersup 33.3 percent+33.3%
40.0K
40,000
Ratingdown 0.6 percent0.6%
3.11
94 reviews
Reviewsup 3.3 percent+3.3%
94
Version
3.0.0
Manifest V3
90-day change · In the last 90 days this extension gained 10.0K users.

History

1 snapshots

Tracking since Apr 25, 2026.

40.8K35.0K29.2KApr 25, 2026May 21, 2026
View as table
DateUsersRatingReviewsVersion
Apr 25, 202630.0K3.13913.0.0
Now40.0K3.11943.0.0

Permissions & access

Permissions
activeTab
Host access
None declared

Screenshots

Responsive Tester screenshot 1Responsive Tester screenshot 2

About

Test responsive web designs or mobile pages that detect specific user agents. Test multiple devices at the same time!

The Mobile/Responsive Tester extension allows Developers to test their web pages against common mobile, phablet and tablet devices by emulating the user agent and screen resolution. 

Excellent for testing responsive web designs. Easily switch between portrait and landscape mode and test multiple mobile device's at the same time!

To begin using the software, install our extension.
Navigate to the webpage you wish to test for different resolution sizes.
Click on our software extension icon, and then choose the resolution size.

Technical

Version
3.0.0
Manifest
V3
Size
82.41KiB
Min Chrome
88
Languages
38
Featured
Yes

Metadata

ID
ppbjpbekhmnekpphljbmeafemfiolbki
Developer ID
u5e84f6d95559b76723e8d4a810a43de3
Developer Email
[email protected]
Created
Jul 15, 2020
Last Updated (Store)
Nov 15, 2023
Last Scraped
May 21, 2026
Support URL
Privacy Policy

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Data sourced from the Chrome Web Store · last verified May 21, 2026.