The free Pomodoro timer
that learns how you focus
The classic Pomodoro cadence
25:00
25 minute session
Not just a timer — the whole focus workflow. Plan the day, run deep-focus sessions, log what pulls you away, and get real analysis back. FocusOS learns the session length you actually finish, not the one you optimistically planned.
Free and open in your browser. Nothing to install, nothing to sign up for.
100%
Runs offline
0
Accounts needed
9
Themes
8
Soundscapes
Everything the focus loop needs
Eight parts that feed each other: what you plan shapes what you run, what you run shapes what it learns, and what it learns shapes tomorrow’s plan.
Deep Focus Mode
A full-screen Pomodoro countdown with an ambient drift background and your task title. Float it over any other window with picture-in-picture so the clock stays visible while you work.
Picture-in-pictureAn engine that learns you
The classic 25 minutes is a starting point, not a rule. After about ten sessions the timer reads your own history: the session length you actually finish, the break length that leaves you sharp, and the three-hour window where your focus is strongest.
Shows its reasoningAnalytics worth reading
Focus time over days, weeks and months, your best hours, how mood predicts productivity, and what interrupts you — including how far into a session each distraction tends to hit.
Day / week / month / yearA written daily debrief
An end-of-day reflection assembled from rules, not a language model. Every sentence traces back to a number in your log, so it works offline and never invents a fact.
No AI, no APITasks that drive the plan
Priorities, categories, tags, and an estimate in Pomodoro sessions. Drag to reorder and the daily plan follows — your highest-priority work scheduled into your peak window.
Auto-ordered planSoundscapes, synthesized live
Rain, forest, ocean, coffee shop, fireplace, wind, white and brown noise to study or work to — generated in the browser from filtered noise and oscillators. Nothing downloads, nothing loops audibly.
8 soundscapesProgress you can feel
Earn XP per session, scaled by length, with a bonus for distraction-free ones. Thirteen achievements across bronze, silver, gold and platinum, each showing live progress.
13 achievementsNine themes, real accessibility
Light, Minimal, Lavender, Dark, Midnight, AMOLED, Forest, Ocean and Sunset — plus System. Full keyboard navigation, high-contrast and reduce-motion modes throughout.
Follows your OSYour focus data never leaves your browser
There is no server, no account, and no analytics. Sessions, tasks and reflections live in your browser’s own storage, insights are computed on your device with plain rules, and ambient sound is synthesized locally rather than streamed. Export everything to JSON whenever you want it elsewhere.
Three steps, then it compounds
New to the method? Read the guide to the Pomodoro technique — where the 25 minutes came from, and what to do when it stops fitting.
Add what you are working on
Give it a priority, a category, and a rough estimate in Pomodoro sessions. A specific title focuses better than a vague one.
Start the session
A two-tap check-in asks how you feel, then the Pomodoro timer takes the whole screen. Log a distraction with one key without breaking flow.
Read what it noticed
Your debrief lands at the end of the day, and the analytics fill in over weeks — until the app is tuning your cadence to what you genuinely finish.
Your first session is 25 minutes away
No sign-up, no setup, no credit card. Open it and start — the workspace builds itself on first load.
Open the dashboardBuilt by one person, shaped by you
Tell me what you think
Bugs, feature ideas, or just whether it helped. This opens your own email app with the message ready — nothing is sent from this page, and nothing is stored.