Refresh Rate Estimator

A simple animation that counts frames to estimate if the screen is running at 60Hz, 120Hz, or 144Hz.

Hz / FPS

Features

  • Estimates monitor Refresh Rate in Hz.
  • Visual UFO/Rocket animation to check for stuttering or ghosting.
  • Uses requestAnimationFrame for accurate browser-based FPS counting.

How to Use

  1. The test starts automatically when you load the page.
  2. Wait for the progress bar to complete (approx 3-5 seconds).
  3. The large number displays the estimated Refresh Rate (e.g., 60, 120, 144).
  4. Watch the moving rocket to visually verify smoothness.