Free Monitor Ghosting Test - Pixel Response Time Check

Monitor Ghosting Test

Watch the moving box. Trail behind = ghosting. No trail = healthy panel.

Speed (px/sec): 800

Box color

Background

Watch the moving box. If you see a trailing blur or color smear behind it, your monitor has ghosting (slow pixel response). Increase speed to expose ghosting more clearly.

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Monitor Ghosting Test guide

How to use the Monitor Ghosting Test accurately

Monitor ghosting is when fast-moving objects on screen leave a trailing blur or color smear behind them. It's caused by slow pixel response time — the LCD/OLED cells can't change color fast enough between frames. Bad ghosting hurts gaming clarity, video editing precision, and fast scrolling readability.

01 What Is Monitor Ghosting? Monitor ghosting is when fast-moving objects on screen leave a trailing blur or color smear behind them. It's caused by slow pixel response time — the LCD/OLED cells can't change color fast enough between frames.

02 How to Spot Ghosting Box trail: If you see a faded duplicate following the moving box, that's ghosting.

03 Pixel Response Time by Panel Type OLED: 0.03-0.1ms. Effectively no ghosting. Best for fast motion.

04 How to Reduce Ghosting Enable overdrive (OD) in monitor OSD. Try Normal or Fast — Extreme often causes overshoot.

monitor ghosting test pixel response time test display ghosting check monitor blur test Monitor Ghosting Test Display

Note: this is different from keyboard ghosting (missing keys during multi-press). Same word, completely different problem.

Monitor Ghosting Test FAQ

Common monitor ghosting test questions

Is this tool free to use?

Yes. The test runs in your browser with no account, download, or installation required.

Does the test upload my device data?

No. The live check is handled locally by the page wherever browser APIs allow it.

Why should I repeat the test?

Browser focus, permissions, wireless devices, and operating-system settings can affect a single run, so repeated tests give a clearer result.

Checklist

Display checks to confirm

What Is Monitor Ghosting? Monitor ghosting is when fast-moving objects on screen leave a trailing blur or color smear behind them. It's caused by slow pixel response time — the LCD/OLED cells can't...
How to Spot Ghosting Box trail: If you see a faded duplicate following the moving box, that's ghosting.
Pixel Response Time by Panel Type OLED: 0.03-0.1ms. Effectively no ghosting. Best for fast motion.