Resolution & Scaling Test
This tool helps you verify your display is running at its native resolution and that scaling is working correctly. Look for blurry text, jagged edges, or improperly sized UI elements.
1. Native Resolution Verification
Check if your display is running at its optimal resolution:
1920×1080 (1080p)
Standard Full HD resolution
2560×1440 (1440p)
Quad HD/QHD resolution
3840×2160 (4K UHD)
Ultra HD resolution
5120×2880 (5K)
High-resolution displays
What to look for:
- The text should be razor-sharp with no blurriness
- The resolution label should match your monitor's native resolution
- If the image doesn't fill your screen, your resolution is set too low
2. Scaling Quality Test
Check how well your system handles UI scaling:
This is 8px text - should be sharp at 100% scaling
This is 10px text - should be easily readable
This is 12px text - standard UI size
This is 14px text - should be very clear
This is 16px text - heading size
What to look for:
- Text should be crisp at all sizes with no blurriness
- The pixel grid should show clean, sharp edges between pixels
- If text appears fuzzy, your scaling settings may be incorrect
3. Aspect Ratio Test
Verify your display's aspect ratio is correct:
What to look for:
- The boxes should appear as perfect rectangles (not stretched or squashed)
- If they appear distorted, your aspect ratio settings may be incorrect
- Modern widescreen monitors should display the 16:9 box correctly
Test Controls
How to Fix Common Issues
Blurry Text
Windows: Right-click desktop → Display settings → Scale → Set to 100% or recommended value
Mac: System Preferences → Displays → Resolution → Default for display
Incorrect Resolution
Check your graphics card settings and update drivers if necessary
Stretched Image
Ensure your display is set to its native aspect ratio (usually 16:9 for modern monitors)