Refresh Rate Test
Measure your display's refresh rate in Hz using your browser. Check if your monitor is running at 60Hz, 120Hz, 144Hz, 240Hz, or higher.
This test uses requestAnimationFrame timing to estimate your display's refresh rate. Close other tabs and apps for the most accurate result. Browser throttling or V-Sync may affect the reading.
How does this test work?
A refresh rate test uses your browser's animation timing to estimate how many frames per second your display is rendering. It can detect common rates like 60Hz, 120Hz, 144Hz, and 240Hz. Browser and OS settings may limit the reported rate.
How to use the Refresh Rate Test
Open the Refresh Rate 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
Why does my 144Hz monitor show 60Hz?+
Your OS display settings may be set to 60Hz. Check Windows Display Settings > Advanced display > Refresh rate, or macOS System Settings > Displays. Also make sure your cable (DisplayPort or HDMI 2.0+) supports the higher rate.
Can a browser accurately test refresh rate?+
Browsers use requestAnimationFrame which is synced to your display's refresh rate. The measurement is usually accurate but can be affected by browser throttling, background tabs, or heavy system load.
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