Reaction Timer
Test your reaction speed!
What Is This Tool?
Test your reaction speed free in your browser — no download, no account, and no ads. Wait for the screen to turn green, then click as fast as you can; the test measures your reaction time in milliseconds and rates it from Good to Excellent. It also tracks your Best time, Average time, and number of Attempts, so you can see how consistent your reflexes are over multiple tries.
How to Use
- Press the button to start a test.
- Wait while the screen shows "Wait for green..." — don't click yet.
- The moment the screen changes and shows "Click Now!", click as fast as you can.
- If you click too early, you'll see "Too Early!" — just try again.
- Your result appears with a rating such as Excellent, Great, or Good.
- Repeat the test a few times to see your Best, Average, and total Attempts update.
Common Use Cases
- Checking how fast your reflexes are out of curiosity
- Warming up before a fast-paced game that depends on reaction speed
- Practising focus and quick decision-making
- Comparing reaction times with friends or family
- A quick, engaging break between work or study sessions
Tips & Tricks
- Keep your finger or cursor resting near the click area so you don't lose time moving into position.
- Try to relax rather than anticipate — clicking before the screen turns green counts as Too Early.
- Take a few attempts in a row; your Average is often a better measure of your true reaction speed than a single Best time.
- Minimise distractions in the browser tab so your full attention is on the screen change.
- If your results feel off, take a short break — fatigue affects reaction time.
Frequently Asked Questions
Is this reaction timer free to use?
Yes — completely free, with no account, no download, and no installation required.
How does the test work?
Wait for the screen to show "Click Now!" after the green change, then click as fast as possible. Clicking before that shows "Too Early!".
What do Excellent, Great, and Good mean?
These are rating labels the test gives your result based on how fast your reaction time was — try a few rounds to see where you land.
Are my Best and Average scores saved?
Yes. Your Best time, Average time, and Attempts are stored locally in your browser, so they're still there when you come back. They are never uploaded to a server, and clearing your browser data will reset them.
What is considered a good reaction time?
Reaction times vary a lot between people and conditions. Run several attempts and compare your own Average and Best over time rather than a single result.
Can I use this on a phone?
Yes, the test works in any modern mobile browser — tap instead of clicking.
Do I need an internet connection?
Once the page has loaded, the test runs entirely in your browser, so it doesn't depend on a live connection.
Play fun mini-games directly in your browser. Includes snake, memory game, tic-tac-toe and more classic games.