Free Online Pomodoro Timer

What is the Pomodoro Technique?

The Pomodoro Technique is a time-management method created by Francesco Cirillo in the late 1980s. You pick one task, work on it for a set interval — traditionally 25 minutes, named a "pomodoro" after the tomato-shaped kitchen timer Cirillo used — then take a short break. After four intervals you take a longer break. That's the whole system. Its power is in the structure: a clear start, a clear finish, and permission to rest built right in.

Breaking work into timed blocks does two things. It makes an intimidating task feel small — you're not writing the report, you're just doing one 25-minute block — and it gives you a natural checkpoint to notice whether you're still on the thing that matters. If you want to plan a whole session in advance, our Pomodoro calculator maps out how many cycles fit your available time.

Why Pomodoro works for ADHD and time blindness

Time blindness — the difficulty of sensing how much time has passed or how long something will take — is one of the most common experiences reported by people with ADHD. A silent internal clock makes it hard to start a task and just as hard to stop. A visible timer replaces that missing internal sense with an external one. The countdown and progress ring turn abstract "time" into something you can see moving, which is far easier for the brain to work with.

Short intervals also lower the cost of starting, which is often the hardest part. Committing to 15 focused minutes feels possible in a way that "work on this all afternoon" never does. That's why the ADHD-friendly preset here defaults to 15-minute focus blocks — start there, and stretch the interval only once beginning feels easy. For a deeper walk-through, read our guide to the Pomodoro Technique for ADHD, or explore Focusmo's approach to focus with ADHD.

What real focus sessions show

The 25-minute interval isn't just tradition. Across more than 12,000 anonymized focus sessions completed in Focusmo between June 2025 and July 2026, the median session ran almost exactly 25 minutes — and even the longest tenth of sessions stopped by 48 minutes. Marathon focus is rare: only about 1 session in 16 lasted an hour or more. If half an hour is all you manage before needing a break, you're not failing — you're typical.

Two more patterns from the same data are worth stealing. Sessions almost never fall apart in the middle — when people quit, they quit inside the first minute, so the timer's real job is getting you past the start. Peak focus happens in the afternoon, with 3pm the single busiest hour, so if mornings never worked for you, the data is on your side. And take the breaks: nearly half get skipped, which is exactly how the technique stops working.

How to use this timer

1. Pick a preset — Classic (25/5), ADHD-friendly (15/5), Deep work (50/10), or Short sprint (10/3) — or tap Customize to set your own durations.
2. Choose one task, press Start (or the space bar), and work only on that until the chime.
3. Take the break when it arrives — actually step away. The timer rolls into your break and back to focus automatically, tracking rounds until a longer break.
4. Turn on sound or a browser notification if you'd like an audible cue, and keep the tab open in the background — the title bar shows a live countdown.

Pomodoro pairs well with other focus methods. If you tend to schedule your day in advance, combine it with time blocking for deep work, and if you're curious how much uninterrupted focus you actually manage, try the deep work calculator. Developers who want a longer, code-friendly variation can read our roundup of the best Pomodoro timer setups for developers.

Frequently asked questions