Test web and mobile apps on the latest versions of Google Chrome, Safari, Firefox, and Microsoft Edge browsers

Cross-browser testing your apps is the best way to detect and fix bugs before they impact your users. Automate browser testing with Sauce Labs so you can spend more time coding and less time running tests.

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Cross-Browser Testing report

Ensure a seamless user experience with browser testing online

It's important to test your web and mobile applications on multiple browser types and versions to ensure they work as expected for every customer. But with the complexity of today’s web applications, this may be more difficult than it sounds. Older browser versions cannot display the graphics and apps that modern web pages use. With this in mind, you need to test your web apps to ensure they render as designed across all the different web browsers, operating systems, and mobile devices that your customers are likely to use. To do this effectively you need access to a wide variety of browsers, OSes, and mobile devices.


A faster, more reliable and efficient way to do browser testing online

Sauce Labs provides thousands of operating system and browser combinations for you to test your web app manually or using automation so you can release faster, seamlessly, and more confidently.

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Parallel testing

Our cloud-based continuous testing platform is optimized so you can run multiple test suites in parallel across every browser and OS combination you need.

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Automated testing

Improve the speed, effectiveness, and consistency of your testing. We support a variety of automated testing approaches, frameworks, tools, and integrations to fit your business needs.

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Live testing + Dev Tools

Validate functionality and user experience in real time with live testing on thousands of emulators/simulators, real devices, and browser/OS configurations. Diagnose and debug quicker with Chrome DevTools and Safari Web Inspector.

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Integrated results

Play a video recording of your entire test or flip through screen shots. Selenium logfiles and metadata for each test make it easy to share results with dev teams and debug faster.


Supported browsers and devices for browser testing online

Focus on testing your apps and websites while we stay up-to-date with the latest browsers, operating systems, and mobile devices.

Chrome icon

Google Chrome

latest, latest-1, dev, beta versions 69-114

iOS simulators


Android emulators




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latest, latest-1, dev, beta versions 70-113

Microsoft Edge

latest, latest-1, dev, beta versions 79-113

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Mac, Linux, Windows

What our customers are saying

Hear why developers and testers love Sauce Labs for browser testing online


Thanks to Sauce Labs, we are able to ensure that our apps work on over 700 browser/ OS combinations, 172 device emulators and over 300 unique real devices.

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Pranav Verma

Sr. Engineering Manager

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Since we can parallelize the tests, they run very fast. We’re covering hundreds of tests in under about 20 minutes...[I have heard from QA] nothing but good things about the mobile capabilities, especially compared to what we were using previously, so the [QA] teams are liking it.

Sauce Labs customer interviewed by Forrester Consulting

Manager of software test engineering, technology industry

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[Sauce Labs] gives you confidence in the definition of 'done' — so that the teams that are in high-pressure situations can deliver software quicker, faster, and more iteratively.

Sauce Labs customer interviewed by Forrester Consulting

Director of enterprise QA, financial services

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We have a lot more logs available to us. We have screenshots and recordings, all of which we wouldn’t have had in the past. We may have had some basic logs, but not to the level that Sauce Labs provide us. It’s definitely a lot easier to find out where an issue has occurred.

Sauce Labs customer interviewed by Forrester Consulting

VP of IT quality assurance, financial services

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We don’t have to worry about making sure the devices are healthy or [scaling]. Having Sauce [Labs] manage [devices] saves time for my team on the administration. It’s been much more hands-off. … It’s just nice. It just works.

Sauce Labs customer interviewed by Forrester Consulting

Manager of software test engineering, technology industry

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Cross-browser testing FAQs

Cross-browser testing is the process of ensuring your web application or website is compatible with different browsers. Cross-browser testing can help you verify if your website works as expected across various browsers, operating systems, devices, and resolutions. Cross-browser testing also allows you to identify and fix any issues prior to release to ensure every customer has a positive user experience with your product. Learn more: Getting Started with Cross-Browser Testing

Cross-browser testing allows you to find and fix any errors before release and make certain your apps and websites work for customers on the browser of their choice. Whether it's slow-loading pages or forms that won’t submit after completion, customers may leave for the competition after one bad experience if errors prevent them from using your app or site. Getting Started with Cross-browser Testing

Cross-browser testing is crucial because different web browsers interpret HTML, CSS, and JavaScript code differently, which can result in variations in rendering, layout, and functionality. By performing cross-browser testing, you can ensure that your software works consistently across popular browsers, minimize user experience issues, improve customer satisfaction, and maintain a wider user base.

Cross-browser testing techniques typically require a mix of manual and automated testing to identify differences and issues with a web application or website across multiple browser/OS/device combinations. Some cross-browser testing use cases include performance testing, functionality testing, user interface testing, accessibility testing, and responsiveness.

The browsers to use for cross-browser testing depend on various factors such as target audience, market share, and usage statistics. Typically, it is recommended to include popular browsers like Google Chrome, Mozilla Firefox, Apple Safari, and Microsoft Edge, covering different versions and platforms (Windows, macOS, Linux, iOS, Android). The selection may also consider the specific requirements or preferences of the project stakeholders.

Common techniques for cross-browser testing include:

  • Manual testing: Manually testing the application on different browsers, versions, and platforms to identify visual and functional discrepancies.

  • Browser virtualization: Using tools or services that provide virtualized browser environments to test the application on different browsers without needing to install them locally.

  • Device emulators and simulators: Using software or online services that simulate different devices and browsers to test responsiveness and functionality.

  • Automated testing: Employing automated testing frameworks or tools that can execute test scripts across multiple browsers simultaneously, reducing manual effort and increasing test coverage.

We recommend the following steps to integrate cross-browser testing:

  • Start early: Begin cross-browser testing as early as possible in the development process to identify and address issues promptly.

  • Establish a testing strategy: Define a comprehensive testing strategy that outlines the browsers, versions, and platforms to be tested, along with the necessary tools and techniques.

  • Use automated testing: Utilize automated testing tools and frameworks to streamline the testing process, improve efficiency, and increase test coverage.

  • Regularly update browser versions: Stay up to date with the latest browser versions and their usage statistics to prioritize testing efforts and ensure compatibility with current user trends.

  • Collaborate with developers and designers: Foster close collaboration between testers, developers, and designers to address browser-specific issues and optimize the application's cross-browser compatibility.

Get started with Sauce Labs Safari browser testing today

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