Random Timer
Set a range and let it pick a surprise countdown for you.
Duration range (minutes)
Alarm sound
How to use the random timer
- 1
Set the shortest and longest durations you want — for example 1 to 10 minutes.
- 2
Press Start and the timer picks a random duration somewhere in that range.
- 3
It counts down from the surprise time, so you never quite know when it will end.
- 4
When it finishes, the alarm sounds; start again for a fresh random duration.
- 5
Tighten or widen the range any time to change how unpredictable it feels.
Tips & tricks
A random timer adds genuine unpredictability, which is exactly what you want for some activities — surprise rounds in games, varied work sprints, randomised drills, or mindfulness where a known end time would let you watch the clock.
The range is yours to control. A narrow range (say 4 to 6 minutes) keeps things roughly predictable; a wide range (1 to 15 minutes) makes every round a real surprise.
Because the duration is hidden until it ends, it is a good way to practise staying present — you cannot pace yourself against the clock, so you simply have to be in the activity.
Frequently asked questions
What is a random timer for?
It counts down a random duration within a range you set, so you do not know when it will end. That is useful for games, varied work sprints, randomised drills and mindfulness practice.
How do I set the range?
Enter a minimum and a maximum duration. Each time you start, the timer picks a random length between those two values.
Can I see the chosen duration?
The duration stays hidden while it runs — that is the point. You will see it only when the timer ends.
Is the result truly random?
Each run picks a fresh random value within your range, so consecutive timers are independent and unpredictable.
Does it keep accurate time?
Yes. Once a duration is picked it is timed against the system clock, so it stays accurate even in a background tab.
Is the random timer free?
Yes — free, no sign-up, runs in your browser.
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