MQtest.app is a simple tool to help identify which media queries your device responds to.
This test isn’t about what media queries your device can or cannot see (but it does show an 'unsupported' label if a device doesn‘t support something). Instead it shows you which dimensions your device will respond to when using 'width=device-width,initial-scale=1.'
The tool was originally built by Viljami Salminen. Some parts of the tests adopted from Quirksmode.org, Aspect Ratio Calculator and BBC’s Device Reporter.
Just download or clone this repository to your own machine and open index.html, no configuration needed.
Licensed under the MIT license.
Copyright (c) 2019 Johann Pinson