A coach or teacher taps each command and then taps the pistol image to fire the start.
Free · No signup · No install
Play a starter pistol
right from your phone.
Play track start commands and the gun sound from your phone. Choose Manual, Auto, or Continuous Practice.
Measure reaction timeUse the camera to measure movement after the gun›
Continuous start practice
Repeat your selected number of starts automatically without touching your phone.
Repetitions
Rest
Ready
Auto mode waits 5 seconds before the first command. “On your marks” to “Set” is 3 seconds, then the gun fires after a randomized 0.8–2.8 second delay.
How to use
Open it and start instantly.
- 1Choose a mode
Use Manual with a coach or Auto with a 5-second preparation delay for solo practice.
- 2On your marks → Set
The English page uses the approved English start commands.
- 3Fire the start
The gunshot triggers a flash, recoil, and a dynamic white smoke burst.
START SIGNAL APP
Use a starter pistol sound from your phone
Starter Pistol is a free web app that plays track start commands and a starting gun sound without dedicated equipment. It works in a browser on smartphones and computers.
3 START MODES
For solo practice, teams, and repeated starts.
Designed for solo practice. The commands run automatically and the gun timing after Set is randomized.
Choose repetitions and rest time to repeat start practice automatically between breaks.
Reaction time
Measure your sprint start reaction with the camera
Measure the time from the gun to your first movement and review a short start video after each attempt.
Open reaction-time test →USE CASES
Useful for track and school-race practice
Practice crouch starts and acceleration drills.
Use a clear start signal for team sessions.
Use it for informal race practice and recreation.
Use Auto mode without asking another person to operate the start.
For practice and recreation only. Do not use for official competition or precise reaction-time measurement.
FAQ
Frequently asked questions
Is Starter Pistol free to use?
Yes. It is free and requires no account or installation.
Can I use it for solo practice?
Yes. Auto mode waits 5 seconds before the first command, keeps 3 seconds between “On your marks” and “Set,” then fires after a randomized 0.8–2.8 second delay.
Is the gun timing randomized?
Yes. In Auto mode, the gun fires after a randomized 0.8–2.8 second delay following “Set,” making the timing harder to predict.
What should I do if there is no sound?
Increase your device volume, turn off silent mode, and tap Test audio before practice.
Can I use it in an official competition?
No. It is intended for practice and recreation, not official competition or precise reaction-time measurement.
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