Image Tools
Screen Resolution Checker
Check display height, scale factors, viewport profiles, and GPU channels. Fully offline and secure inside your browser.
What is Screen Resolution Checker?
The Screen Resolution Checker displays your display's resolution in pixels. Check screen width, height, aspect ratio, and device pixel ratio instantly.
How Does Screen Resolution Checker Work?
It queries the window.screen and window.devicePixelRatio APIs locally, displaying the dimensions on your screen.
How to Use Screen Resolution Checker — Step by Step
- Open the tool on the screen you want to test.
- Review the screen specs: width, height, color depth, and aspect ratio.
- Adjust browser zoom to see real-time resolution changes.
Key Benefits
- Dynamic Resolution Check: Displays screen dimensions in pixels.
- DPR Monitor: Shows device pixel ratio for high-density screens.
- No Signup: Free checking without ads or registration.
Who Uses Screen Resolution Checker?
- Design Testing: Check device screen dimensions when building responsive designs.
- Desktop Specs: Verify monitor resolutions before purchasing software.
Tips & Best Practices
- Keep browser zoom at 100% for accurate physical resolution measurements.
- Use this tool to compare screen sizes when testing mobile views.
Common Mistakes to Avoid
- Assuming browser window size is equivalent to physical screen resolution.
- Not factoring in device pixel ratios on high-density displays (Retina screens).
Screen Resolution Checker — Frequently Asked Questions
Screen resolution is the number of pixels displayed on a screen (width x height).
Yes, it displays both the physical screen resolution and the active browser window dimensions.