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
Responsinator - Designed to test responsive websites on different devices.
SwitchResX - SwitchResX is a tool designed to manage resolutions of all your monitors and HDTVs.
Responsive Website Test - Test any website on desktop, mobile, and tablet
EasyRes - EasyRes is a fast screen resolution switcher for Mac OS X with live animated previews.
Multi Screen Test - Test your site at different screen resolutions & devices.
Resolutionator - Resolutionator makes it simple to use any of your display's available resolutions.