Free online tool

FPS Test

Run a browser frame rate test using requestAnimationFrame to measure current FPS, average FPS, frame time, and stability.

✓Runs locally in your browser — no account or uploads required.
Interactive browser testResults stay in this session
Browser diagnostic

Ready when you are.

Simple and safe

How to use the fps test

  1. 1

    Keep the tab visible and close heavy background work.

  2. 2

    Start the FPS test and let it collect its sample.

  3. 3

    Review average FPS, frame time, and stability.

Understand the result

Understanding your fps result

Run a browser frame rate test using requestAnimationFrame to measure current FPS, average FPS, frame time, and stability.

The result records only values the browser measured or checks you explicitly confirmed. Unsupported and unavailable values are labeled honestly rather than estimated or invented.

Practical fixes

Troubleshooting

FPS is unexpectedly low

Disable power saving, close heavy tabs, and check hardware acceleration.

Values fluctuate

Background tasks, variable refresh rate, and thermal limits can affect frame timing.

The test pauses

Return focus to this tab; background tabs are throttled.

Questions and answers

FPS Test FAQ

Is FPS the same as monitor refresh rate?

No. FPS describes delivered browser frames, while refresh rate describes display updates.

Does this test game performance?

No. It measures this browser animation workload only.

Build a complete report

Test the rest of your device

Continue through all 13 core checks in one guided session and download a private PDF report.

Run Full Device Check →