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.




BrowserSeal is not available as a web app but there are some alternatives that runs in the browser with similar functionality. The best Online alternative is BrowserStack. It's not free, so if you're looking for a free alternative, you could try Browserling or IE NetRenderer. If that doesn't suit you, our users have ranked more than 10 alternatives to BrowserSeal and eight of them are available as a web app so hopefully you can find a suitable replacement. Other interesting Online alternatives to BrowserSeal are Litmus, Sauce Labs, Browshot and Browsera.
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.




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.

Litmus shows you exactly how your designs look on every platform, across every popular web browser. (And the not-so-popular ones.)



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.
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.


Automated website layout testing service. Get a free report of your sites cross-browser problems.

Website Screenshot - Capture Web Page Snapshot - Software Service
Take real-time screenshots. You choose the resolution. Supports for HTML5, CSS3, Flash, Javascript. Well documented API and code examples in your native programming language.
