What Is My Browser

See your browser, OS, screen size and other device details detected locally.

All detected on your device in your browser — nothing is sent to us. This is the same information any website you visit can read about your setup.

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How to use What Is My Browser

Three quick steps — no sign-up needed

  1. Step 1

    Open the page

    Load What Is My Browser - detection runs automatically in your client.

  2. Step 2

    Read the cards

    Review browser name, operating system, screen size, language, timezone, and related fields.

  3. Step 3

    Use the info

    Share details with support, or confirm how your device presents itself to websites.

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About What Is My Browser

What Is My Browser shows the browser, operating system, screen size, and related client details detected from your device. Support teams ask for this when fixing layout bugs; users check it when a site says their browser is unsupported.

Information is read locally in your browser from standard APIs and the user agent string - the page explains that nothing extra needs to be typed. You typically see browser family, OS hints, mobile vs desktop, screen and window size, pixel ratio, language, and timezone.

User agent strings can be spoofed, and privacy features may reduce detail. Treat the panel as a helpful snapshot of what websites can already infer, not a perfect hardware inventory.

Searches like "what browser am I using", "detect my browser", "screen resolution check", and "user agent online" match this utility. No form fields are required - open and read.

Benefits of What Is My Browser

Instant device snapshot See browser and OS context without installing diagnostic software.
Screen and window sizes Useful when reporting responsive design bugs to developers.
Local detection Details are gathered in your browser for a quick read-out.
Support-friendly Copy key lines when a helpdesk asks which browser you use.

Frequently asked questions

How do I check which browser I am using?

Open this page - the browser name and related details appear automatically.

Is my data sent to a server?

Detection uses information available in your browser. The on-page note describes the local nature of the readout.

Why might the OS look wrong?

User agents are imperfect and can be simplified by privacy settings or compatibility modes.

Can websites see this information?

Many sites read similar client hints and user agent data for compatibility.

Is What Is My Browser free?

Yes - open the tool whenever you need a quick client summary.