Test Website On Different Browsers

We test websites on different browsers to check whether the website works as intended across all possible combinations of browsers, OS, devices, and resolutions. Cross-browser testing helps you ship user-friendly and browser-agnostic websites.

With TestMu AI you get access to 3,000+ browser and OS combinations. Sign up, select your browsers, provide your URL, and run Selenium, Cypress, or Playwright scripts in parallel on the automation cloud across Chrome, Firefox, Safari, and Edge.

Start with the browsers your own analytics show, then widen from there. Sign in, pick a browser and OS pairing, and enter your URL to open a live session. Work through the flows that matter most, usually navigation, forms, and checkout, and open DevTools in the session when something renders differently. Screenshots and session video are captured as you go, so a bug report carries the exact browser, version, and OS it happened on. Once a flow is stable, move it into an automated suite and run the same checks across browsers in parallel.

A cloud browser platform runs the browser on a remote machine and streams it to your screen, so you can check a page from any laptop without installing anything. TestMu AI provides 3,000+ browser and OS combinations this way, including Safari on macOS and iOS from a Windows machine. If the site is not publicly reachable yet, an encrypted tunnel connects the remote browser back to your localhost or staging environment, so remote testing works before anything is deployed.

Yes, because browsers do not share one rendering engine. Chrome, Edge, Opera, and Brave run on Blink, Firefox runs on Gecko, and Safari runs on WebKit. Code that behaves correctly on one engine can break on another, most often in form controls, date and time inputs, video playback, and newer CSS features that ship on different schedules. Testing only in the browser you develop in means you are really only checking one of the three engines your users are on.