Blur Busters UFO Motion Tests with ghosting test, 30fps vs 60fps, 120hz vs 144hz vs 240hz, PWM test, motion blur test, judder test, benchmarks, and more.

Free online Screen Refresh Rate Test (Hz). Instantly measure your monitor’s refresh rate and browser FPS, fix 60Hz cap issues, and verify 120Hz, 144Hz, 240Hz on desktop and mobile.

Test your display's refresh rate capabilities with our free online tool. Higher refresh rates result in smoother motion and better responsiveness.

Accurately test your monitor refresh rate online with no downloads. Fast, free, and easy way to check your display’s true performance.

Test your monitor’s refresh rate online instantly. Measure real-time Hz, FPS, and display performance for gaming, editing, and smoother screen motion.

Test your monitor's refresh rate with our online tool. Verify your display's hertz (Hz) and ensure smooth visual performance for gaming and everyday use.

Test your monitor's FPS and refresh rate in real-time. Measure display frequency, detect 60Hz, 120Hz, 144Hz, 240Hz monitors. Free FPS counter and Hz checker with accurate frame timing analysis.

Find out your screen's refresh rate instantly! Free tool to check your display's Hz in your browser. No uploads, no tracking, 100% private and secure.

Test your monitor's refresh rate (Hz) and frames per second (FPS) with our online tool. Check for screen tearing and motion smoothness.

Watch for smooth motion without stuttering or tearing. The FPS counter shows your actual refresh rate. • Press SPACE or CLICK to change tests. • Press ESC to exit full screen. • Test will start in 3 seconds. …