Viewport is an iPad application that helps you to test, debug and present your responsive website designs. Choose from the supplied list of screen resolutions, or create your own custom sizes that you always test against. Change User Agent strings and get under the hood via the Page Inspector.

The presentation mode also allows you to easily display a responsive design in action when presenting from your iPad. Perfect for your next client presentation.

  • Test your responsive website at different screen sizes
  • Take screenshots and save them to your photo library or email them
  • Use the color picker to easily find out the Hex or RGB values for a color
  • View HTML source code
  • View Javascript files
  • View CSS files
  • Save images from a website
  • View HTTP Response Headers
  • Change the User Agent
Select your viewport dimensions