Cross-Browser Testing Online
Ensure your website works flawlessly across every browser. Test in real Chrome, Firefox, and more — all from your browser, no installs required.
Start Testing FreeWhy Cross-Browser Testing Matters
Every browser renders HTML, CSS, and JavaScript slightly differently. What looks perfect in Chrome might be broken in Firefox or Safari. Cross-browser testing is the process of verifying that your website or web application works correctly across all major browsers and their versions. Without it, you risk losing users who encounter layout bugs, broken features, or poor performance on their preferred browser.
MyBrowser makes cross-browser testing effortless. Instead of maintaining local virtual machines or buying expensive hardware, you get instant access to real browsers running in the cloud. Simply enter your URL, pick a browser, and start an interactive session within seconds. You can click, scroll, fill forms, and test every feature — exactly as your users would experience it.
Upgrade to Pro for ad-free browsing & longer sessions
Plans start at $5/month — 50% cheaper than the competition
How It Works
Enter Your URL
Type the website address you want to test into the URL bar.
Pick a Browser
Choose Chrome, Firefox, or any other browser from our selection.
Test Live
Interact with a real browser session — click, scroll, and verify your site works.
50% Cheaper Than the Competition
Other cross-browser testing tools charge $19 to $29 per month for individual plans. MyBrowser offers the same features at half the price — starting at just $5/month with yearly billing. No hidden fees, no session time limits, and you can cancel anytime.
Frequently Asked Questions
Cross-browser testing is the process of verifying that your website or web application works correctly and looks consistent across different web browsers like Chrome, Firefox, Safari, and Edge. Each browser uses a different rendering engine, which can cause variations in how HTML, CSS, and JavaScript are interpreted.
MyBrowser.lol lets you test your website in real Chrome and Firefox browsers for free. Simply enter your URL, choose a browser, and start an interactive session. The browser runs in the cloud so you don't need to install anything on your device.
Browsers use different rendering engines — Chrome uses Blink, Firefox uses Gecko, and Safari uses WebKit. Each engine interprets CSS, JavaScript, and HTML slightly differently. Common differences include font rendering, flexbox/grid behavior, form element styling, and support for newer CSS properties.
At minimum, you should test in Chrome (65%+ market share), Firefox (7-8%), Safari (18%), and Edge (5%). Chrome is the most critical since it represents the majority of users. MyBrowser.lol currently supports Chrome and Firefox with more browsers coming soon.
Yes. Even standard HTML and CSS can render differently across browsers. Font sizes, form controls, scrollbar styles, default margins, and newer CSS features like backdrop-filter or container queries may behave differently. Cross-browser testing catches these subtle differences before your users encounter them.
Ready to Start Testing?
Join thousands of developers who trust MyBrowser for cross-browser compatibility testing.
Launch a Free Session