Screen & Browser Info

Screen & Browser Info

This tool reads your device's technical parameters directly from the browser: screen resolution, viewport size, pixel density (DPR), color depth, touch support, timezone and more. Useful for web developers testing responsive layouts and anyone who wants their display specs without digging through OS settings.

All data is read locally via standard JavaScript APIs (screen, navigator, window) and never sent to a server.

Frequently Asked Questions

• Why do screen resolution and browser window size differ?

  Screen resolution is the physical pixel count of your monitor and never changes. Viewport is the area available to page content inside the current browser window, minus toolbars and scrollbars — it shrinks when the browser isn't maximized.

• What is device pixel ratio (DPR) used for?

  DPR is the ratio of physical screen pixels to logical CSS pixels. Standard monitors report 1, Retina displays and most modern phones report 2 or 3. Developers use it to serve correctly sized images for sharp rendering on high-density screens.

• Can this identify my exact device model?

  No, the tool only exposes technical screen and browser characteristics, not a specific device model. For browser and OS detection from the User-Agent string, use the dedicated User-Agent tool.