BrowserStack is the world’s largest cloud platform for software testing, with 20,000+ real Android and iOS devices that allow developers to comprehensively test their websites and apps for functionality, performance, and visual appeal.




There are many alternatives to CrossBrowserTesting as a web app and since it's discontinued a lot of people are looking for a replacement. The best Online alternative is BrowserStack. It's not free, so if you're looking for a free alternative, you could try TestMu AI or Browserling. If that doesn't suit you, our users have ranked more than 25 alternatives to CrossBrowserTesting and many of them are available as a web app so hopefully you can find a suitable replacement. Other interesting Online alternatives to CrossBrowserTesting are MobileTest.me, TestingBot, Comparium and Sauce Labs.
BrowserStack is the world’s largest cloud platform for software testing, with 20,000+ real Android and iOS devices that allow developers to comprehensively test their websites and apps for functionality, performance, and visual appeal.




TestMu AI (Formerly LambdaTest) is a full-stack AI platform for automated testing across web, mobile, and enterprise apps with agent-driven analysis, real device and browser support, parallel execution, and CI/CD integration for scalable quality assurance and detailed analytics.




Browserling lets you quickly cross-browser test your websites in all the most popular browsers, such as Internet Explorer, Chrome, Safari, Opera and Firefox. We run the browsers in virtual machines and you get live access to them.

Online service for testing mobile and responsive websites in various device emulators. The free version includes 6 devices and by subscribing for $9.99/month members get more than 100 devices.



Cross browser compatibility testing with Selenium Online. Automatically test your website on multiple browsers with Selenium.

Comparium is a convenient web application to test any website on any operating system and browser combination.

Sauce Labs provides the world’s largest cloud-based platform for the automated testing of web and mobile applications. Its award-winning service eliminates the time and expense of maintaining an in-house testing infrastructure, freeing development teams of any size to innovate...

Free online HTML tool that shows instantly how your website looks like in Microsoft Internet Explorer 8, 7, 6 and 5.5.

Endtest is a cloud platform where you can easily create, manage and run Automated Tests, without writing any code.




The Rainforest Continuous QA Platform provides on-demand manual QA-as-a-Service so that agile and continuous deployment teams can develop software quickly without compromising quality.




Browshot is a powerful service to take real-time screenshots in 30+ screen resolutions on 15+ virtual devices, including iPhone, Nook, Android, etc. Browshot provides full support for HTML5, CSS3, Flash, JavaScript, etc. You can request thumbnails of any size and any ratio.


They both offer VMs running the browser, and you can interact with it.