Sites and apps similar to Comparium include BrowserStack. It's paid, but Supercheck is free. Other options are TestMu AI , Browserling, Sauce Labs and MultiBrowser. In total there are nine Automated Testing Tools like Comparium for Windows, Mac, Android, iPhone and iPad.
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.
United States
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.
India
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.
United States
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...
United States
MultiBrowser (or Multi-Browser Viewer) is a cross browser and functional web testing software tool, using REAL standalone browsers, an accurate mobile emulator and integrates seamlessly with Visual Studio and Selenium for automated testing.
PromptBrake is a security testing platform designed for teams building with LLM APIs. It runs 60+ attack prompts across 12 security test categories to identify vulnerabilities such as prompt injection, data leaks, policy bypasses, tool misuse, and credential exposure.
United States
The unified platform for AI-powered Playwright testing, multi-region k6 load testing, uptime monitoring, and subscriber-ready status pages.
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.
Germany
EU
Assistiv Labs enables testing of websites and web applications through a web browser window. It is designed to facilitate testing using assistive technologies such as screen readers (NVDA, Narrator, JAWS) and Windows High Contrast Mode.
