How to use the what is my Browser?

1Open the page: your browser, operating system, device type and engine appear at the top.
2Press Copy user agent for the raw user-agent string.
3Press Copy details for support to copy everything (browser, screen, settings) as text for a help desk.

Example: reading a user-agent string

Input

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36 Edg/129.0.2792.65

Output

Browser: Microsoft Edge 129.0.2792.65
Engine: Blink
Operating system: Windows 10 or 11
Device: Desktop or laptop

Windows 11 still reports "Windows NT 10.0" in the user agent, so the string alone can't tell 10 from 11; Client Hints can.

Your browser and version

The browser name and version are read from your user-agent string and, in Chrome, Edge and other Chromium browsers, from User-Agent Client Hints, which report the full version more reliably. The order of checks matters because browsers imitate each other: Edge's string also contains "Chrome" and "Safari", so the detector looks for the most specific name first.

Operating system and device

The operating system comes from the platform part of the user agent (Windows NT 10.0, Mac OS X 10_15_7, Android 14, iPhone OS 18_0). Modern browsers freeze or reduce some of these values for privacy: macOS always reports 10.15.7 in Chrome and Safari, and Windows 11 reports itself as Windows NT 10.0. Where Client Hints are available, the Platform row shows the real version. Device type (phone, tablet, desktop) is inferred from the same string.

The user-agent string explained

Almost every user agent starts with Mozilla/5.0, a leftover from the 1990s when sites served better pages to Netscape ("Mozilla") and other browsers started claiming to be it. Then come the platform in brackets, the engine (AppleWebKit/537.36 or Gecko/20100101), and browser tokens. Sites use the string for statistics and occasional workarounds; support teams use it to reproduce problems.

Cookies, JavaScript and other settings

The settings panel shows whether cookies are enabled, your screen and window size and pixel ratio, color-scheme and reduced-motion preferences, languages, time zone, touch support, CPU threads and approximate memory (some browsers don't report these), and the Do Not Track and Global Privacy Control signals. JavaScript is obviously on if you can see the details. Everything is read locally; nothing is sent to our server.

How to update your browser

Chrome: menu ⋮ → Help → About Google Chrome.
Edge: menu … → Help and feedback → About Microsoft Edge.
Firefox: menu ☰ → Help → About Firefox.
Safari (Mac): System Settings → General → Software Update.
iPhone/iPad: Settings → General → Software Update (Safari updates with iOS).
Android: Google Play → your browser → Update.

This page doesn't say whether your version is the latest, because that needs an up-to-date version list we don't maintain; the About pages above check for you.

Is my text private?

This tool runs entirely in your browser. Your text is not uploaded to our servers.

Sources

Questions about the what is my Browser?

How do I check my browser version?

It's shown at the top of this page. You can also open your browser's About page (for Chrome: menu → Help → About Google Chrome), which also checks for updates.

Why does my user agent say Mozilla?

For compatibility. In the 1990s sites checked for "Mozilla" (Netscape) before serving modern pages, so every browser added it, and it has stayed ever since.

Is my browser up to date?

We don't check, because that needs a maintained list of current versions. Your browser's About page compares your version with the latest and installs updates.

What Is My Browser?