Screen Test Patterns
Create original monitor and projector test images. Preview geometry, edge cropping, text and numbered levels, or download a PNG at your chosen resolution.
- Five original test patterns
- Exact-size PNG downloads up to 8K
- Full-screen display and an aspect-correct preview
256–8192 px per side · up to 33.2 MP · PNG only
Look for straight, evenly spaced lines. Square cells should remain square; use the original image for fine-line checks.
Preview scaled to fit, not 1:1. The PNG retains your selected dimensions.
Continue exploring
Calculate screen PPI, pixels per cm, pixel pitch and physical dimensions from resolution and diagonal size. Compare two monitors or phones with manual inputs.
Local Dimming & Blooming Test for Mini LED and LCDInspect blooming and local dimming on a Mini LED or LCD display. Move a bright square, circle or subtitle across black and compare your TV’s dimming settings.
How to use
- Choose a pattern and image dimensions. The inline preview is reduced to fit; it is not a 1:1 pixel test.
- Open the full-screen view to examine the current screen. Hide the controls to see the edges, and tap the image to show them again.
- Download the PNG for another display or projector. Open the original at 100% with scaling and overscan disabled when checking fine lines.
- Keep display settings and viewing conditions consistent. Record what you see, compare another pattern, and repeat before drawing conclusions.
What to keep in mind
These images support visual checks; they do not automatically calibrate a display or measure luminance, color accuracy or physical pixel response. Browser zoom, system scaling, image viewers and projector processing can change fine lines. Numbered levels are RGB code values, not brightness percentages or nits.
Questions
Are the PNG dimensions exact?
Yes. The download uses exactly the selected width and height in image pixels, without multiplying by the screen pixel ratio. Supported sides are 256–8192 pixels, with a total limit of 33,177,600 pixels.
Why can the preview look softer than the download?
The preview is scaled to fit your window. Small lines and lettering can merge when reduced. Use the original PNG at 100% for a pixel-level check; the viewer and operating system must also avoid rescaling.
Can I use these images on a projector?
Yes. The grid, circles and edge pattern help you visually inspect focus, geometry, aspect ratio and cropping. They cannot automatically measure color accuracy or replace professional calibration equipment.