Browser Info Checker
See exactly what websites can learn about your browser and device. This free tool reads your user agent, screen, hardware, network, and graphics details using standard browser APIs — everything happens locally, nothing is sent or stored anywhere.
Your browser and device
Note: values like viewport size and online status are live — resize the window or toggle your connection and press Refresh to update them.
How it works
Your browser exposes details about itself through built-in JavaScript objects. This tool simply reads and displays them:
navigatorprovides the user agent, platform, languages, CPU cores, memory, touch points, online status, and connection type.screenandwindowprovide screen resolution, viewport size, color depth, and pixel ratio.- A hidden
canvaswith WebGL reveals the GPU renderer name (when the browser allows it). Intl.DateTimeFormatreveals your timezone, and a quick cookie write test shows whether cookies are enabled.- Nothing is uploaded: the page never makes a network request to send this data anywhere.
Frequently asked questions
What does this browser info checker detect?
It reads your user agent, platform, languages, CPU cores, device memory, screen and viewport size, color depth, touch support, GPU renderer via WebGL, network type, timezone, and cookie and online status.
Is my data sent anywhere?
No. Everything is read locally inside your own browser using standard JavaScript APIs. Nothing is uploaded or stored on any server.
Why does the GPU show as unavailable?
WebGL may be disabled in your browser settings, blocked by an extension, or unsupported on the device. The masked renderer message means the browser is hiding the exact GPU name for privacy.
How do I copy all the details?
Press the Copy all button. The full report is copied as plain text so you can paste it into an email or a support ticket.