Random interval settings
Set the possible duration range and interval behavior.
Chaos Timer (Random Interval Timer)
Set a random range, then run a single random countdown or a sequence of random intervals. Fullscreen keeps the active interval large and readable.
Random durations within your range
Random timer chooses one duration between Min seconds and Max seconds. Random interval timer chooses another duration after each completion. If the minimum is greater than the maximum, the tool swaps them.
With a minimum of 10 and maximum of 45, every generated interval is from 10 through 45 seconds. Reset stops the current sequence and generates according to the current mode. Test beep checks the selected sound path.
Random and browser behavior
Values are generated in the browser for this session. They are not seeded for replay and are not suitable for security, gambling, or a controlled experiment. Background throttling or device sleep can delay an interval change or beep.