Viewport Resizer – Responsive Testing Tool
Responsive design testing tool to test any website’s responsiveness – it only takes 2 seconds! Emulate various screen resolutions.
Browserling - Cross-browser testing
Cross-browser test websites in the most popular browsers such as Internet Explorer, Chrome, Firefox, Safari and Opera. Try for free!
vREST - REST API Testing Tool
vREST is an automated REST API Testing Tool. This extension records HTTP requests and their responses in vREST application.
VIEWTEST - Amazon Image Testing Tool
The testing tool will allow the user to enter their own product main picture and to see it as if it was selling on amazon.