Refresh Rate Test
Test your monitor's refresh rate. Run the browser-based check and follow its prompts to review the result.
Results depend on your display refresh rate, browser, and current device workload.
Tool guide
About Refresh Rate Test
Observe a browser animation or test pattern that can help check display update behavior. This is not a direct hardware certification; browser frame scheduling and the monitor's settings affect what appears.
How to use this tool
- 1Open the test in the display and browser you want to inspect.
- 2Follow the on-page motion or pattern and note whether the expected smoothness or rate is visible.
- 3Compare with your operating-system display settings and the monitor's own information panel.
How the tool works
The test uses browser animation frames or moving patterns to present changing content. requestAnimationFrame is commonly synchronized to a display refresh opportunity, but browser throttling, variable refresh rate, and frame drops can affect observation.
Worked real-world example
A 120 Hz screen can appear smoother than a 60 Hz screen in supported conditions, but the browser needs to deliver frames quickly enough to show that difference.
Common scenarios and use cases
Check a basic visual indication after changing monitor refresh settings or compare display smoothness.
Important details and limitations
The page does not query every monitor mode or prove the panel is running at a claimed refresh rate. Check OS settings and manufacturer diagnostics, and account for cable and GPU limits.
Check the output unit as well as the number. If the result will be reused in another calculation, retain full precision where possible and round only at the end. For measurements governed by a technical specification, use the standard and tolerance required by that document.
Frequently asked questions
Does the browser report the monitor's exact refresh rate?
Not necessarily; it measures or displays browser behavior.
Why does the test look capped?
The browser, graphics path, or selected display mode may limit frames.
Can it certify a 144 Hz monitor?
No. Verify the active mode in system settings and manufacturer tools.
About Refresh Rate Test
Test your monitor's refresh rate. Run the browser-based check and follow its prompts to review the result.
How to use this tool
Use the controls above to run the check. Results are measured or calculated in your browser. Some device features require browser support, a secure connection, or permission from you.