Responsive Tester Extension

The extension displays your website in the 50 most common screen resolutions today. Perfect for web developers and UX/UI professionals. The extension is free and ad-free.

Screenshots from Chrome Web Store

Discovery

GoFullPage - Full Page Screen Capture

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Users: 11m
Rating: 4,9
Reviews: 84,700

React Developer Tools

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Rating: 3,5
Reviews: 1,600

ColorZilla

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Users: 4m
Rating: 4,7
Reviews: 3,900

Take Webpage Screenshots Entirely - FireShot

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Users: 3m
Rating: 4,9
Reviews: 52,900

WhatFont

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Rating: 3,8
Reviews: 2,100

Wappalyzer - Technology profiler

Developer

Users: 3m
Rating: 4,0
Reviews: 2,000