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.




Aptus is described as 'Dedicated browser that lets you preview, edit and screenshot your responsive site at any size from mobile through to large desktop' and is an app in the development category. There are more than 10 alternatives to Aptus for Web-based, Windows, Mac, Self-Hosted and SaaS. The best Aptus alternative is BrowserStack. It's not free, so if you're looking for a free alternative, you could try Browserling or IETester. Other great apps like Aptus are TestingBot, IE NetRenderer, 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.

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

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.

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.

Learn how Expression Web SuperPreview simplifies the process of testing and debugging layout issues across different web browsers and platforms.
BrowseEmAll is a web testing tool for manual and automated cross browser testing, using on-premise browsers, an accurate mobile emulator and seamless integration with Selenium.




Retest helps you deliver the perfect experience to your end-user. It allows you to check your website for functionality, design flaws, and incredible design on hundreds of devices from our dedicated software.


