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 Sauce Labs as a web app if you 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 Sauce Labs and many of them are available as a web app so hopefully you can find a suitable replacement. Other interesting Online alternatives to Sauce Labs are Buildstash, DeviceLab, Rebrowser and TestingBot.
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.




Manage your software binaries and releases. Organize all your binary builds, distribute to testers and collaborators, steer through QA and sign-off, and rollout to users.




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.

Private mobile device lab platform. Connect your own iOS and Android devices to run automated tests remotely via WebRTC. Your test data never leaves your network.
The ultimate cloud browser. Affordable, bulletproof, AI-fueled. Your best partner for data extraction, browser automation, web scraping.

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

test IO’s on-demand crowd of professional testers unblocks your QA bottleneck so you can test continuously and ship better software.

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

Build your Selenium test cases visually without typing a single line of code. Run your tests in headless browser in our cloud. Connect from around the world to monitor your application 24/7.

Professional Crowd Testing Team To Uncover Critical Bugs.
Optimize Your Software Development Process, Reduce the Cost of Fixing Customer Bugs.
Free online HTML tool that shows instantly how your website looks like in Microsoft Internet Explorer 8, 7, 6 and 5.5.
Both provide VMs running browsers that you can interact with and automate testing of, using Selenium.