Stopwatch
Use a free online stopwatch with start, pause, reset, lap times, and fullscreen mode.
Online timer / countdown
Set a free online timer or countdown with sound alerts, presets, and fullscreen mode.
00:00:00
Set a duration and press Start
S start · P pause
How to use Online timer / countdown
Set a countdown timer with quick presets or custom hours, minutes, and seconds. When time is up, an alert sound plays and the display flashes. Everything runs in your browser — no account required.
- Presets for 1, 3, 5, 10, and 25 minutes
- Custom duration with hour, minute, and second inputs
- Fullscreen mode for kitchen, workout, or presentation use
- Keyboard shortcuts: S start, P pause
Online timer / countdown FAQs
Is Online timer / countdown free?
Online timer / countdown is a free online tool on ReallyUseful.Tools. No account is required.
Does Online timer / countdown run in my browser?
Online timer / countdown is designed to run in your browser where supported, so files can stay on your device instead of being uploaded to a server.
