Workout Timer
A free interval workout timer — set work and rest seconds and rounds, then start, pause and reset your training session. — free, fast and private.
Set your work, rest and rounds, then press Start Workout.
How to use Workout Timer
- Set your work seconds, rest seconds and number of rounds.
- Optionally name the exercise, then press Start Workout.
- Use Pause to stop and Reset to start over.
Note: this tool runs in your browser. Nothing is uploaded.
Frequently Asked Questions
How does the interval timer work?
Set how many seconds to work, how many seconds to rest, and how many rounds. Press Start and the timer counts down each phase, beeps when it changes, and tells you which round you are on until the workout is complete.
Is this tool free to use?
Yes, it is 100% free with no sign-up. Your data stays in your browser.
Is my data uploaded or stored?
No. This tool runs entirely in your browser — nothing you enter is uploaded to a server.
Can I use it on my phone?
Yes, it is fully mobile-friendly and works in any modern browser on phone, tablet or computer.