Gradient & Banding Test

    Smooth gradients to reveal banding, color steps, and display quality issues

    Look for color steps, banding lines, or uneven transitions · Keys 1–3 switch modes in fullscreen

    📖 Read the complete guide for in-depth tips and troubleshooting.

    What Is a Gradient Banding Test?

    A gradient banding test shows smooth tonal ramps from dark to light. Quality panels display seamless blends; weak panels show visible stripes (banding). Use this test when evaluating monitors for photo editing, gaming, or professional color work.

    How to Run a Gradient Test

    1. Open Gradient Test in fullscreen at native resolution
    2. View each ramp for visible steps or color shifts
    3. Test in a dark room with sRGB mode if available
    4. Compare results after changing cable or GPU settings
    5. Pair with Gray Screen for tint checks

    Gradient Test Applications

    Monitor shopping

    Compare banding on showroom units

    Photo editing

    Sky and shadow smoothness matters

    GPU troubleshooting

    Rule out driver banding issues

    HDR vs SDR

    See bit-depth limits per mode

    Budget panel QA

    Know FRC limitations upfront

    Calibration validation

    Confirm profile quality

    Related Tools

    Gray ScreenPixel TestRefresh Rate TestBlack Screen

    Frequently Asked Questions

    What is a gradient banding test?

    A gradient banding test displays smooth color transitions. If you see visible steps or lines instead of a smooth blend, your display or GPU may have banding or limited color depth (8-bit vs 10-bit).

    Which gradient mode should I use?

    Use Grayscale Ramp for general banding checks. RGB Spectrum tests color channel transitions. Gray Steps (Banding) uses discrete steps to make subtle banding easier to spot.

    What causes color banding on monitors?

    Banding can come from 8-bit panels, aggressive compression, poor GPU dithering, or incorrect color profiles. Higher-quality displays and 10-bit color reduce visible banding.

    Can I switch modes in fullscreen?

    Yes. Press keys 1, 2, or 3 in fullscreen to switch between RGB Spectrum, Grayscale Ramp, and Gray Steps. You can also tap the mode buttons at the bottom.

    Is this gradient test free?

    Yes. The gradient and banding test is completely free and runs instantly in your browser.