Based on our record, Responsive Viewer seems to be more popular. It has been mentiond 2 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Bonus! Useful Chrome extension for Responsiveness Testing. - Source: dev.to / 11 months ago
This chrome extension with all of the breakpoints set up https://chrome.google.com/webstore/detail/responsive-viewer/inmopeiepgfljkpkidclfgbgbmfcennb. Source: over 1 year ago
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
Responsinator - Designed to test responsive websites on different devices.
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
Responsive Website Test - Test any website on desktop, mobile, and tablet
LightShot - The fastest way to take a customizable screenshot.
Multi Screen Test - Test your site at different screen resolutions & devices.