Free Online Pomodoro Timer — 25/5 Focus Sessions with Custom Lengths
Classic 25/5 pomodoro timer with custom work and break lengths, auto-cycling, a gentle chime and a title-bar countdown. Free, no sign-up.
How to use this tool
- 1
Set your work, break and long-break lengths (classic 25/5/15 is the default).
- 2
Press Start and focus until the chime — the title bar counts down with you.
- 3
Take your break; the timer auto-cycles into the next work session.
- 4
After the set number of sessions, enjoy the long break and repeat.
Frequently asked questions
▸What is the pomodoro technique?
You focus for 25 minutes, take a 5-minute break, and repeat. After four focus sessions you take a longer 15–30 minute break. This timer runs that cycle automatically — just press start.
▸Can I change the 25/5 lengths?
Yes — work, break and long-break lengths are all configurable (1–120 minutes), plus how many work sessions fit in a cycle before the long break. The classic 25/5/15 with 4 sessions is only the default.
▸Does the timer keep running in a background tab?
Yes. Time is measured from a Date.now anchor, not by counting ticks — so even when your browser throttles background tabs, the timer stays accurate and the chime fires on time.