Device & Browser Info Checker
Check your device and browser information instantly. See screen resolution, user agent, OS, CPU cores, memory, and more. Free online system info tool.
How It Works
The tool reads your browser's navigator object and screen properties to display detailed information about your device, operating system, browser version, screen resolution, language, and hardware capabilities.
Common Use Cases
- Quickly finding your screen resolution and browser version for troubleshooting
- Sharing device details with tech support when reporting issues
- Checking what user agent string your browser sends to websites
- Verifying device capabilities like touch support and hardware concurrency
Frequently Asked Questions
A user agent is a string that your browser sends to websites to identify itself. It contains information about your browser name, version, and operating system.
No, all information is read locally in your browser using JavaScript. Nothing is sent to any server.
If your display scaling is set above 100%, the reported resolution may differ from your physical screen resolution due to device pixel ratio.
It shows your operating system, browser name and version, screen resolution, device pixel ratio, CPU cores, memory, GPU info, touch support, language, and other hardware details.
Browsers intentionally limit the navigator.deviceMemory API to approximate values (2, 4, 8 GB) to prevent fingerprinting. It may not show your exact installed RAM.
Device pixel ratio (DPR) is the ratio of physical pixels to CSS pixels. A DPR of 2 (common on Retina displays) means each CSS pixel uses 4 physical pixels.
Yes, combined device characteristics can create a 'fingerprint.' This is why privacy-focused browsers limit some APIs. Our tool shows you exactly what websites can see.