Reaction Speed Test

• Reaction speed test tool that measures your visual reaction time (in milliseconds)
• Supports Simple and Challenge modes, with a grade and your percentile versus others

1. Open the tool page — no installation needed
2. Choose Simple or Challenge mode, then click Start Test; click as fast as you can once the area turns green to measure your reaction time
3. Check your reaction time and grade; in Simple mode you can save the result, while Challenge mode averages 5 rounds — you can also export or clear history

• This tool is completely free and requires no sign-up
• Everything runs locally in your browser — your data never leaves your device

Free online reaction speed test tool to measure your visual reaction time. Supports simple and challenge modes, compare your results with average levels.

Open the tool page — no installation needed Choose Simple or Challenge mode, then click Start Test; click as fast as you can once the area turns green to measure your reaction time Check your reaction time and grade; in Simple mode you can save the result, while Challenge mode averages 5 rounds — you can also export or clear history

This tool is completely free and requires no sign-up Everything runs locally in your browser — your data never leaves your device

Yes, Reaction Speed Test is completely free. No download or installation required — it runs right in your browser.