Refresh rate test

Measure this tab’s animation-frame timing.

On your device · No account

Privacy details

Refresh rate test processes your input in this browser. Inputs and results are excluded from analytics. Recent tools save tool names, visit counts and last-visit times. Saved tools store only their names. Draft saving is optional and stays on this device; delete saved text with the draft controls. Loading text from a URL is optional and contacts that server; its URL and your IP address are visible to the server. An optional “Use in” action keeps a handoff in this tab. The next tool removes it on arrival and ignores it if more than a minute has passed.

Copy link includes the inputs you choose to share in the address. Anyone with that link can reopen them. Files and generated results are excluded. Password and key tools share settings only.

Keep this tab visible during the sample. No flashing pattern is displayed.

Ready to measure.

Reset reloads the tool with its starting values and releases open files and device controls. Saved drafts stay on this device until you delete them.

Links include your inputs and settings. Anyone with the link can see them, so leave out private text. Files and generated results are left out; random draws run again.

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Updated 2026-09-20

Refresh rate test explained

Measure animation-frame timestamps in this visible tab for a short sample. The report shows median and mean callback cadence and the longest observed interval, so occasional pauses are not hidden inside one rounded refresh-rate number.

Next: Browser information tool

Next: Dead pixel test

A worked example

Frame timestamps 10 milliseconds apart imply a callback cadence of 100 per second by arithmetic. The browser may schedule callbacks differently from the display’s physical scanout.

Before you use the result

Background throttling, browser load, power-saving modes, variable refresh rate and remote sessions can change callback timing. Keep this tab visible. This does not identify your monitor model, certify panel Hz or test motion blur.

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ToolOctopus. “Refresh rate test.” Updated 2026-09-20. https://tooloctopus.com/refresh-rate-test.

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