Real-time Detection
Real-time display of current frame rate, accurate to every frame
Professional Refresh Rate Testing Platform
Real-time detection of your browser frame rate and monitor refresh rate. Supports high refresh rate monitor detection to verify your display is working at the correct refresh rate.
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Features
Comprehensive refresh rate detection solution
History Chart
FPS history graph showing frame rate trends over time
Fullscreen Test
More accurate refresh rate testing in fullscreen mode
How to Test Your Refresh Rate
Follow these simple steps to test your monitor's refresh rate
1
Start the Test
Click the Start Test button to begin measuring your monitor's refresh rate and browser FPS.
2
Enter Fullscreen Mode
For more accurate results, click the fullscreen button to eliminate browser UI interference.
3
Wait for Measurement
Allow the test to run for at least 10 seconds to get stable and accurate readings.
4
Review Results
Check the detected refresh rate, average FPS, and frame time analysis to verify your monitor's performance.
Browser Compatibility
Refresh rate testing is supported on all major browsers
Chrome
Full SupportBest experience with accurate RequestAnimationFrame timing
Edge
Full SupportFull support for refresh rate detection
Firefox
Full SupportComplete refresh rate testing functionality
Safari
Full SupportFull support on macOS devices
Frequently Asked Questions
Common questions about refresh rate testing
Why does my FPS show 60 when I have a 144Hz monitor?
This could be due to V-Sync being enabled, browser limitations, or your display settings. Check that your monitor is set to the correct refresh rate in your system display settings, and try disabling V-Sync in your graphics driver settings.
How accurate is the browser-based refresh rate test?
Browser-based tests use RequestAnimationFrame which is generally accurate but can be affected by browser throttling, system load, and V-Sync settings. For the most accurate results, use fullscreen mode and close other applications.
Why does my FPS fluctuate during the test?
FPS fluctuations can be caused by background processes, browser activity, or hardware limitations. Minor fluctuations are normal. For stable readings, close unnecessary programs and browser tabs.
Can this test detect high refresh rates like 240Hz or 360Hz?
Yes, the test can detect high refresh rates, but browser support varies. Some browsers may cap the frame rate. Chrome and Edge typically provide the best support for high refresh rate detection.
What is frame time and why does it matter?
Frame time is the duration between frames in milliseconds. Lower frame times mean smoother motion. For 60Hz, target frame time is 16.67ms; for 144Hz, it's 6.94ms. Consistent frame times indicate stable performance.
Why should I use fullscreen mode for testing?
Fullscreen mode eliminates browser UI rendering overhead and provides more accurate measurements. It also ensures the test runs at your monitor's native resolution and refresh rate without interference.