Monitor Hz Detector

Detect your monitor's refresh rate (Hz) instantly with this browser-based tool.

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About This Tool

The Monitor Refresh Rate Detector is a free online tool that accurately measures your display's refresh rate in Hertz (Hz) using browser APIs. It helps you verify your monitor's performance, compare it with common standards (e.g., 60Hz, 144Hz), and ensure optimal display settings for gaming or productivity. The tool works entirely client-side with no data uploads, providing instant results with a visual indicator.

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How to Use

Click the 'Start Detection' button to begin measuring your monitor's refresh rate.
Wait a few seconds while the tool runs the detection algorithm.
View the results showing your detected refresh rate, confidence level, and comparison with common standards.
Use the 'Detect Again' button to re-run the test if needed.

Frequently Asked Questions

Find Quick Answers

How does this tool detect my monitor's refresh rate?

It uses the browser's requestAnimationFrame API to measure the time between screen updates, calculating the refresh rate based on multiple frames for accuracy.

Is this tool accurate?

Yes, it provides a close approximation of your monitor's refresh rate. Results may vary slightly due to browser throttling or system settings, but it's reliable for most standard displays.

Do I need to install anything?

No, this is a fully client-side tool that runs directly in your browser—no downloads or installations required.

Can I use this tool on mobile devices?

Yes, it works on any device with a modern browser, including smartphones and tablets, though results may reflect the device's screen refresh rate.

Need to run multiple calculations?

Create a free account today to unlock unlimited daily runs, access advanced parameters, save your history, and request custom features.

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