Reaction Time Test
Wait for green, then click as fast as you can.
Click to start
Runs in your browser. Nothing you enter is sent or stored.
How to use Reaction Time Test
- Click the big box to start.
- Wait for it to turn green, then click immediately. Clicking too early doesn't count.
- After five rounds, see your average and best time.
Frequently asked questions
What is a good reaction time?
Many people score around 200–300 ms on a test like this. Your screen, mouse and browser add some delay, so compare results on the same device.
Can I use the keyboard?
Yes, press the space bar instead of clicking.
Is Reaction Time Test free?
Yes. Reaction Time Test is free to use with no sign-up and no watermark.
Is my information saved or sent anywhere?
No. Everything is calculated in your browser. Nothing you enter is sent to a server or stored.
Does it work on my phone?
Yes. It works in any modern browser on Windows, Mac, Linux, Android and iPhone. Very large files may be slow on older phones.