Open the Reaction Rush
Test your reaction time online! Click when the screen flashes green — 5 rounds, instant results.
- Free to use
- No signup
- Nothing to install
- Works in any modern browser
Illustration. Open the tool for the real thing.
See it in action
Shown during play
What is the Reaction Rush?
Reaction Rush is a simple reflex test. Wait for the screen to change, then click as fast as you can. Your reaction time is shown in milliseconds so you can see exactly how quick you are.
3 steps to your result
Open the tool and follow along. Nothing to install.
What you get
Click, tap or press Space
Keep your finger resting on the button.
Look at the middle of the screen, not the edges.
You'll usually be a bit faster after a couple of warm-up rounds.
AZRS tools are free to open and use.
It opens in your browser, so there is nothing to download.
How it compares
A plain look at this tool next to the usual alternative.
| This game | Desktop software | |
|---|---|---|
| Install | Nothing to install | Usually an app or program to install |
| Account | No signup | Depends on the product |
| Cost | Free to use | Free or paid, depends on the product |
Questions people ask
What is a normal reaction time?
Most people fall around 200 to 300 milliseconds.
Why is my phone slower?
Touch screens and displays add a little delay, so scores vary by device.
How do I use the Reaction Rush?
1. Start the test and wait. 2. When the screen changes colour, click or tap straight away. 3. Clicking too early counts as a false start. 4. Do a few rounds to get your average.
Any tips for good results?
Keep your finger resting on the button. Look at the middle of the screen, not the edges. You'll usually be a bit faster after a couple of warm-up rounds.
More free tools
Related to the Reaction Rush.