Simple Grid might be a bit more popular than Responsive Viewer. We know about 2 links to it since March 2021 and only 2 links to Responsive Viewer. 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 / almost 2 years ago
This chrome extension with all of the breakpoints set up https://chrome.google.com/webstore/detail/responsive-viewer/inmopeiepgfljkpkidclfgbgbmfcennb. Source: over 2 years ago
From my experience with Bootstrap I can tell you the only thing you really need is the grid part of it and there are so many lightweight "frameworks" that have just that and its only 250 lines of css in the example of simple grid: https://simplegrid.io/ Everything else, buttons, modals, sliders, chords are super simple anyway you can just make them yourself or use a way more featurerich separate slider or modal... - Source: Hacker News / over 2 years ago
a lightweight css grid is https://simplegrid.io/. Source: almost 3 years ago
Pixefy.io - Save time identifying your websites responsive issues with our easy-to-use browser extension
Bootstrap - Simple and flexible HTML, CSS, and JS for popular UI components and interactions
Responsive View - Test your responsive design across different devices
Flexbox Grid - Grid based on CSS3 flexbox
Multi Screen Test - Test your site at different screen resolutions & devices.
CSS Gridish - Automatically build your grid design's CSS code ✨