🔍 Device & Browser Info

Device Information — See What Your Browser and Device Are Reporting

Your device sends a lot of information to every website it visits. Browser name and version, operating system, screen dimensions, color depth, touch support, GPU details, memory, CPU core count, battery level — all of this is accessible via standard browser APIs. This tool reads and displays that information so you can see exactly what's reported.

What information is shown

Browser details: Name, version, rendering engine, and whether it's a mobile or desktop browser. Useful for verifying your browser version before reporting bugs or checking compatibility.

Operating system: Windows, macOS, Linux, iOS, Android — as reported in the user agent string. Note that this can be spoofed and may not always reflect the exact OS version accurately, especially on mobile devices where some browsers report generic version numbers.

Screen information: Total screen resolution, available resolution (excluding taskbars and dock), color depth, and pixel ratio. Important for web developers testing responsive layouts and for understanding whether a device is a high-DPI (retina) display.

Touch and input capabilities: Whether the device has a touch screen, how many touch points are supported, and whether a pointing device (mouse/trackpad) is available.

Hardware information: Device memory (approximate, in GB), logical CPU core count, GPU vendor and renderer (via WebGL). These values are sometimes rounded or approximated for privacy reasons.

Network information: Connection type (WiFi, cellular, ethernet) and estimated speed category, if the Network Information API is available in your browser.

Battery status: Current battery level and charging status on supported devices.

Common use cases

Web development and testing: When debugging a layout issue on a specific device, knowing the exact screen dimensions, pixel ratio, and browser version helps diagnose the problem. Share this output with a developer when reporting a visual bug.

Browser compatibility verification: Check that your browser version supports the features you need. If you're on an older version, some web apps may not work correctly.

Support and troubleshooting: When contacting technical support, sharing your device info output saves back-and-forth about your configuration. "I'm on Chrome 120 on Windows 11 with a 2560×1440 screen" is much more useful than "my laptop."

Privacy awareness: See what fingerprinting information your browser exposes. Some of these values — GPU renderer, exact screen resolution, hardware concurrency — contribute to a browser fingerprint that can track you across websites even without cookies.

Tips

If the GPU information shows "Swiftshader" or similar software rendering, your browser isn't using your actual graphics card — this can affect performance in WebGL applications.

On mobile, the screen resolution shown is the physical resolution, not the CSS pixel dimensions. On a phone with a high pixel density (like a 2400×1080 phone with 3x DPI), the CSS pixel resolution used by websites is 800×360 — divide by the pixel ratio to get the CSS dimensions.

Limitations

Some information is intentionally obfuscated by browsers for privacy reasons. Firefox and Safari in particular limit what hardware and sensor data is exposed. The values shown are what your specific browser reports — other browsers on the same device may report different values.

User agent strings can be spoofed by browser extensions or privacy tools, so the reported browser and OS may not match the actual environment in those cases.