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Gradient Smoothness Test

Test your monitor for color banding and gradient smoothness issues. Detect 6-bit, 8-bit, and 10-bit panel quality differences. Free browser-based tool.

Gradient Smoothness Test
Test your monitor for color banding and gradient smoothness issues. Detect 6-bit, 8-bit, and 10-bit panel quality differences. Fre
ESC exit_fullscreen
Press F or click button to go fullscreen
Checks for banding between dark and light tones
RGB channels shown separately

What Is a Gradient Smoothness Test?

A gradient smoothness test displays continuous color transitions to reveal color banding — visible stepping between tones that should blend seamlessly.

Why Color Banding Happens

How to Use

Click Start Test to display three gradients: black-to-white, black-to-red, black-to-blue. Look for visible steps.

Who Needs This?

Frequently Asked Questions – Gradient Smoothness Test

It reveals color depth and ability to render smooth tonal transitions. Visible banding indicates limited bit depth or panel defects.

Dithering can reduce it. Upgrading to 10-bit eliminates it.

8-bit: 16.7M colors. 10-bit: 1.07B colors with smoother gradients.

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