Gradient Banding Test
Test your monitor, TV, or phone for gradient banding and color stepping artifacts using smooth color gradients.
How does this test work?
A gradient banding test displays smooth gradients across your screen so you can spot visible steps or bands where colors should transition smoothly. Banding is common on 6-bit and 8-bit panels.
How to use the Gradient Banding Test
Open the Gradient Banding Test on any device with a modern browser — desktop, laptop, tablet, or phone. No downloads, plugins, or signup required. The tool loads instantly and works in Chrome, Firefox, Safari, Edge, and other Chromium-based browsers.
Follow the on-screen instructions to run the test. Results are displayed immediately in your browser. You can repeat the test as many times as needed. For the most accurate results, close other tabs and applications to reduce interference.
Privacy: This test runs entirely in your browser using standard web APIs. No data is collected, uploaded, or stored on any server. Camera, microphone, keyboard, mouse, and controller inputs are processed locally and never leave your device. DeviceKit does not use analytics cookies or tracking scripts.
Browser note: Some hardware values are estimated because browsers limit direct access to device hardware for security and privacy reasons. Results may vary slightly between browsers and operating systems. For the most reliable measurements, use an up-to-date version of Chrome or Edge on a desktop computer.
Frequently Asked Questions
What causes gradient banding?+
Banding is caused by limited color depth on your display panel (6-bit or 8-bit), poor dithering, or lossy video compression. Higher bit-depth panels (10-bit) show smoother gradients.
Can gradient banding be fixed?+
Some monitors have dithering settings that reduce visible banding. Updating GPU drivers and using higher color depth output (10-bit) can also help.
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