Can I change my user agent?

Yes—many browsers support user agent overrides in developer tools or via extensions. Use them carefully: some sites will break if the UA doesn’t match real capabilities.

Is the user agent a unique identifier?

Usually no. It often reveals browser/OS versions and device class, but it’s not a stable unique ID by itself.

Why does the UA say Chrome when I’m using Edge or Brave?

Most Chromium-based browsers include “Chrome” tokens for compatibility. Sites should use feature detection, but some still key off UA strings.

Browser Diagnostics

User Agent

Parse your browser string without fingerprinting

User Agent

Browser, OS, device and engine from your current session

🌐

Browser

Unknown Browser Unknown

💻

Unknown OS Unknown

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Device

desktop

⚙️

Engine

Unknown

Raw User Agent String

When a user agent check helps

Sites sometimes ship different code paths based on browser engine and platform. If you're seeing a mobile layout on desktop, broken video playback, or a "browser not supported" warning, confirming the reported user agent is a fast first step.

We show the raw string and a human-readable summary so you can copy it into bug reports or compare across devices. For deeper compatibility, run the full browser test to check feature support.

Common fixes

Wrong device layout Browser not supported Update browser

FAQ

Can I change my user agent?: Yes—many browsers support user agent overrides in developer tools or via extensions. Use them carefully: some sites will break if the UA doesn’t match real capabilities.
Is the user agent a unique identifier?: Usually no. It often reveals browser/OS versions and device class, but it’s not a stable unique ID by itself.
Why does the UA say Chrome when I’m using Edge or Brave?: Most Chromium-based browsers include “Chrome” tokens for compatibility. Sites should use feature detection, but some still key off UA strings.