144Hz Test — Verify Your Gaming Monitor Hits 144 Hz
Measure the refresh rate your browser really renders: a live Hz readout from frame timestamps, a frame-time graph, a skipped-frame counter and a UFO-style smoothness test.
Result
This page runs the refresh rate test tuned for 144 Hz gaming monitors: the measured rate is compared against 144 Hz and the verdict tile shows pass within a ±5% window (roughly 137–151 Hz, which also covers panels reporting 143.9).
The classic 144 Hz trap: the monitor arrives, gets plugged in, and runs at 60 Hz for months — because operating systems do not raise the refresh rate on their own. If the test reads 60, open your OS display settings and pick 144 in the refresh rate list. If 144 is not offered there, the cable is the usual suspect: older HDMI versions cannot carry 1440p or 4K at 144 Hz, while DisplayPort typically can.
A fail verdict with the settings correct deserves one more check: browsers can cap animation frames under load or power saving, so close heavy tabs and retest. Passing here means the whole chain — panel, cable, GPU, OS and browser — is genuinely delivering 144 frames every second to this page.