Monitor Ghosting Test
Test your monitor for ghosting and slow response time. See if fast-moving objects leave visible trails.
Watch the moving bar. If you see a trail or shadow behind it, your monitor has ghosting (slow response time).
How does this test work?
A monitor ghosting test moves an object across your screen at speed. If you see a trail or shadow behind the moving bar, your monitor has ghosting caused by slow pixel response time.
How to use the Monitor Ghosting Test
Open the Monitor Ghosting 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 monitor ghosting?+
Ghosting is caused by slow pixel response times — the time it takes for a pixel to change from one color to another. VA panels typically ghost more than IPS or TN panels.