Based on our record, Responsive Viewer should be more popular than Screencastify. 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.
Screencastify is another one which is an extension but is avaliable in a lot of plaltaforms screencastify.com. Source: over 2 years ago
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
Loom - Loom is a screen recording extension for Chrome that gives people the ability to create and share media. Create your own videos using your camera, screen view, and audio. Read more about Loom.
Responsinator - Designed to test responsive websites on different devices.
Snagit - Screen Capture Software for Windows and Mac
Responsive Website Test - Test any website on desktop, mobile, and tablet
Camtasia - Camtasia 2018 makes it easy to record your screen and create polished, professional-looking videos.
Multi Screen Test - Test your site at different screen resolutions & devices.