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.




CrossBrowserTesting is described as 'Run manual, visual, or automated tests on your website or web application across 1500+ real desktop and mobile browsers right in the cloud' and is an website in the web browsers category. There are more than 25 alternatives to CrossBrowserTesting, not only websites but also apps for a variety of platforms, including Windows, Mac, Linux and SaaS apps. The best CrossBrowserTesting alternative is BrowserStack. It's not free, so if you're looking for a free alternative, you could try TestMu AI or Browserling. Other great sites and apps similar to CrossBrowserTesting are LT Browser, Polypane, Blisk and MobileTest.me.
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.

Enables real-time debugging of websites on mobile and tablet views, supports 50+ device profiles, allows side-by-side testing, custom device setups, separate Dev Tools for each device, and screens for responsive design, all within a web-based platform.




Polypane is a browser built from the ground up to create websites and apps. Polypane is the only browser that lets you develop a website for all viewports and devices at once, and gives you the best overview of them.




Blisk is a browser for web developers, QA engineers, and web designers with built-in mobiles, tablets, laptops, and desktops. It provides teams and freelancers with a workspace to develop and test modern web applications twice faster.




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.

CutyCapt is a small cross-platform command-line utility to capture WebKit's rendering of a web page into a variety of vector and bitmap formats, including SVG, PDF, PS, PNG, JPEG, TIFF, GIF, and BMP.


IETester is a free WebBrowser that allows you to have the rendering and javascript engines of IE11, IE10, IE9, IE8, IE7 IE 6 and IE5.5 on Windows 8 desktop, Windows 7, Vista and XP, as well as the installed IE in the same process.

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...

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