Pomodoro Focus & Study Timer Online Free
A clean Pomodoro countdown for deep work: default 25-minute focus blocks, 5-minute short breaks and 15-minute long breaks after every fourth session. Adjust lengths, toggle auto-start, see completed Pomodoros for the day and get a soft chime when a block ends — all without installing software or creating an account.
Pomodoro Focus & Study Timer In-Browser Workspace
Input data or select files to begin. 100% private, client-side execution with zero server transmission.
How to Use Pomodoro Focus & Study Timer
- Step 1: Leave the defaults (25 / 5 / 15) or edit focus, short-break and long-break minutes before starting.
- Step 2: Press Start to begin the focus countdown; Pause freezes the remaining time without resetting it.
- Step 3: When a block ends, take the suggested break — the timer switches to the break label automatically.
- Step 4: Watch the session dots; after four completed Pomodoros the long break is offered instead of a short one.
- Step 5: Use Reset to zero the current block, or enable auto-start if you want the next phase without a click.
About Pomodoro Focus & Study Timer
The Pomodoro Technique (Francesco Cirillo, late 1980s) splits work into short timed intervals separated by breaks to reduce mental fatigue and context switching. A classic cycle is 25 minutes of single-task focus, a 5-minute pause, repeated four times, then a longer 15–30 minute rest. The timer here implements that state machine: remaining seconds are tracked as a target end timestamp so background-tab throttling does not silently lose progress — on visibility change the UI recomputes from Date.now(). Phase transitions (focus → short break → focus … → long break) advance a counter modulo four to decide long vs short rest. Optional notification sound uses the Web Audio API oscillator (no asset download), so a single browser tab can chime even offline. Session dots render completed focus blocks for the current chain. Fullscreen is best-effort via the Fullscreen API for distraction-free mode. All state lives in component memory; refreshing the page starts a fresh 25:00.
Frequently Asked Questions
Does the timer keep running if I switch tabs?
Yes. The end time is stored as an absolute timestamp, so the remaining time is recomputed correctly when the tab becomes visible again.
Can I change the default 25/5/15 lengths?
Yes — edit any of the three minute fields before or during idle time. Changes apply to the next phase transition.
Is there a sound when a session ends?
A short Web Audio chime plays by default; mute it with the sound toggle. Browsers may require one user gesture before audio is allowed.
Will my session count save after a refresh?
No. Progress lives only in the open tab; refresh starts a clean chain. Use your browser’s session restore if you need history.
Is it free and private?
Fully free, no signup. The timer never sends data anywhere — it is pure client-side countdown logic.