Responsivator - App for Preview Your Website in Various Reolutions

Responsivator is a website where you can check how your website look in various screen sizes. Its perfect tool, when you design a responsive website and want to test it in different dimensions.

 
For checking the website, paste the URL of the website you want to check and click on Responsivate, It will open different iframes with the different sizes of iPhone, tablet and desktop.

There is an option to customize the screen dimensions. We can navigate to the different screens with in the iframe to check different screens dimensions in the same website.

Responsivator is an open source project by John Polacek, draftfcb. source code of it is available on github