Free Online Workout Timer
Power your workouts
Whether you're doing HIIT, Tabata, CrossFit, or any interval training - our free timer keeps you on track for maximum results.
Why use our tools
Free, fast, and reliable time management tools right in your browser
100% Free
No signup, no credit card, no hidden fees. Just open and use.
Works Offline
Once loaded, our tools work even without an internet connection.
No Downloads
Everything runs in your browser. No apps to install or update.
Mobile Friendly
Works perfectly on phones, tablets, and desktops.
Custom Sounds
Choose from built-in sounds or use YouTube videos as alarms.
Privacy First
Your data stays in your browser. We don't track your timers.
Simple timer powerful results
Get started in seconds with our easy-to-use workout timer
Set Your Intervals
Configure work time, rest time, and number of rounds.
Start & Move
Hit start and focus on your workout - we'll handle the time.
Hear the Alert
A clear alarm signals when it's time to switch or rest.
Train smarter with timed intervals
Interval training is more effective when you're precise
HIIT Training
High-intensity intervals with precise timing
Tabata Protocol
20 seconds work, 10 seconds rest
Circuit Training
Move through timed exercise stations
Rest Periods
Optimal recovery between sets
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Monthly Users
Worldwide
50M+
Alarms Set
And counting
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User Rating
Loved by millions
Join millions of users who rely on Clockii every day
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