Ready
40s
Tip: press Space to start / pause. Screen stays awake while running.
HIIT timer — free interval timer with alarm
HIIT timer — free interval timer with alarm
Set your work and rest seconds, pick the number of rounds, and Tickline handles the rest — beeping between phases, ringing at the end, and staying accurate even in a background tab. Try 40/20 for classic HIIT, 30/30 for beginners, or 50/10 for cardio finishers. Copy the URL to share the exact interval structure with a training partner.
Frequently asked questions
What is HIIT?
High-intensity interval training alternates hard work with short recovery. Common schemes are 40/20, 30/30 or 50/10 for 8-20 rounds.
Does the alarm mark work / rest transitions?
Yes — a beep marks the change between phases and a longer alarm plays at the end of the last round.