Chrome //
Extensions 
Chrome
Web store 
Download Responsive Window chrome extension. Making responsive design a little bit easier. and install in your Google chrome browser. This is Direct Responsive Window Crx download for Chrome it is also called Responsive Window offline CRX for chrome Download. This Responsive Window is used to Making responsive design a little bit easier.
-
The easiest way to find the break points in your responsive web designs.
-
Window Watcher for Chrome it's a extension that shows the size of the window.
-
Responsive Web Design Blog of TemplateStore.com
-
Edits some css for slack's webapp to make it more responsive.
-
Snap and manage your windows with shortcuts!
-
Kickstart the design of your Bubble™ app with access to pre-built responsive UI elements and learning resources.
-
Show multiple screens once, Responsive design tester
-
A chrome extension for testing responsive web page, just by a click.
-
Responsive iframe as a Chrome plugin
-
Responsive Web Design Tester is a quick and easy way to test your responsive website.