sonarwhal website on a laptop

Scan your website with sonar, the linting tool for the web

We've completely revamped our scanning tool to bring you sonar, a configurable linting tool for developers of any skill level that you can add to your workflow to help you build better websites

Free tools for cross-browser testing

Our tools and virtual machines are free and cross-platform, so you can test your site today on your favorite device.

  • Instant Testing

    Powered by BrowserStack

    Free live and automated testing is now available through BrowserStack. Sign up here

  • Virtual Machines

    Test Microsoft Edge and also IE8 up to IE11 using virtual machines that you download and manage locally for free.

  • Generate Screenshots

    Visualise how your site renders across 9 common browsers and devices.

  • Site Scan With sonar

    We've completely revamped our site scanning tool to bring you sonar, a configurable linting tool for the web.

Microsoft Edge shown on mobile and desktop devices

Track platform features in the Microsoft EdgeHTML rendering engine

  • Platform status
  • Changelog
  • FAQ

Experiences powered by Microsoft Edge and the latest web standards

Web Authentication

This demo showcases how you can log in to a site via Windows Hello. Once you are logged in, you get to see videos of puppies!

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Dolby Audio Experience

For the first time, Dolby Atmos® can be delivered through the browser on PCs and tablets. Give your users a crisp, clear, and immersive sound experience with Dolby Atmos.

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Custom Properties Pooch

Beginning with EdgeHTML 15 in the Windows 10 Creators Update, Microsoft Edge introduces support for CSS Custom Properties, a new primitive value type to fully cascade variables acr

View demo

Getting Started With PaymentRequest

Getting started with the W3C Payment Request API

View demo