List of free responsive stuff for developer👇🏽
If you're looking for all programming tools around responsive (not just free). Check this page List of responsive Programming Tools
A must-have DevTool for all Front-End developers that will make your job easier.
Tag: devtool, web-development, productivity, responsive, browser
Mirrored User-interactions across all devices. Customizable preview layout to suit all your needs. One handy elements inspector for all devices in preview. 30+ built-in device profiles with option to add custom devices. One-click screenshot all your devices. Hot reloading supported for developers.