Refresh Rate Test

Estimate display refresh rate and frame timing variation from browser animation frames.

This tool runs in your browser.

This test runs locally in your browser. Device input is not uploaded.

Resolution-

Viewport-

Device pixel ratio-

Color depth-

Orientation-

Refresh rate-

Frame jitter-

Samples0

This value is estimated from browser events and may differ from hardware specifications.

How to use

01Open the test and read the local-only notice.
02Start the test, then interact with the device while watching the live result.
03Stop the test or close the page to release any active device access.

FAQ

Does Refresh Rate Test upload device data?

No. Processing stays in your browser and no captured media or device events are uploaded.

Why can results differ from hardware specifications?

Browsers, operating systems, permissions, power saving, and event scheduling can affect measurements.

Refresh Rate Test: Why does this test need browser permission?

Camera, microphone, motion, and similar tests require an explicit browser permission before the page can read that device. Denying permission keeps the device unavailable to the test.