Reaction Time Test
Measure how fast you react from signal to click, tracking best score and average across attempts.
Runs in your browser
Real-time
Scores
—
Best
—
Average
0
Attempts
—
Last
History
No attempts yet
Reaction area
ri-cursor-line
Click to start
Click as soon as it turns green
Spacebar works too — pressing early counts as a false start
About this tool
Measure how fast you react from signal to click, tracking best score and average across attempts.
How to use
- Fill in the input box above, or click "Fill sample" to try it instantly
- Adjust the options as needed — results update as you type
- Click "Run" to get the result, then copy or export it in one click
Tips
- Runs entirely in your browser — your data never leaves the device
- Completely free, no registration, no usage limits
- Most tools compute in real time as you type