Pomodoro Timer

The Pomodoro Technique is a time management method developed by Francesco Cirillo in the late 1980s, named after the tomato-shaped kitchen timer he used as a university student. The core principle is simple: break your work into focused intervals (traditionally 25 minutes long, called "pomodoros"), separated by short 5-minute breaks. After completing four consecutive pomodoros, you take a longer break of 15-20 minutes. This cycle creates a sustainable rhythm of concentrated work and deliberate rest that helps maintain focus, prevent mental fatigue, reduce procrastination, and improve overall productivity. This browser-based Pomodoro timer implements the full technique with a visual circular countdown, automatic phase transitions between work and break sessions, a session counter, and customizable durations — all without requiring any downloads, installations, or account sign-ups.

Yes. While the classic Pomodoro Technique uses 25-minute work sessions, 5-minute short breaks, and 15-minute long breaks, this timer allows full customization to match your personal productivity rhythm. You can adjust the work session length from 1 to 60 minutes, the short break from 1 to 15 minutes, and the long break from 1 to 30 minutes through the settings panel. Popular alternative configurations include 50/10/20 for deep work sessions that require longer uninterrupted focus (common among developers and writers), 45/15/30 for creative work that benefits from slightly longer incubation breaks, and 15/3/10 for quick task-switching workflows. The timer remembers your settings while the page is open, so you only need to configure once per session. Experiment with different durations to find the rhythm that maximizes your personal productivity.

Yes. When a work session or break period ends, the timer plays a clear alarm sound that is synthesized in real time using the Web Audio API built into your browser. The sound is generated programmatically by creating an OscillatorNode and routing it through a GainNode — no pre-recorded audio files are downloaded, stored, or streamed at any point. This approach keeps the tool lightweight and eliminates any dependency on external audio resources. The alarm sound works on all modern browsers including Google Chrome, Mozilla Firefox, Apple Safari, and Microsoft Edge on both desktop and mobile devices. The sound is designed to be noticeable enough to bring your attention back to the timer without being jarring or disruptive to others around you.

Yes. The timer continues to count down accurately in the background even when you switch to another browser tab, minimize the browser window, or interact with other applications on your computer. Modern browsers throttle JavaScript timers in background tabs to conserve resources, but this Pomodoro timer uses a drift-corrected timing mechanism that compares the elapsed real-world time against the expected countdown, automatically compensating for any throttling-induced drift. This ensures the alarm fires at the correct time regardless of which tab is active. When the session ends, the alarm sound will play even if the timer tab is not visible. This design means you can confidently start a Pomodoro session and then work in your code editor, document, or any other application knowing the timer is running accurately.

Yes. The timer displays a session counter that increments each time you complete a full work session (pomodoro). This counter shows how many focused work blocks you have achieved during your current visit, and the number is displayed prominently alongside the timer so you can see your progress at a glance. The counter resets when you refresh the page or close the tab, as the tool does not use localStorage or any persistent storage. Tracking completed pomodoros is a core element of the technique — Francesco Cirillo recommends recording your daily pomodoro count to measure productivity over time. You can note your count in a journal, spreadsheet, or task management tool at the end of each day to build a long-term productivity record.

No. This Pomodoro timer runs entirely in your web browser using client-side JavaScript with absolutely no server communication. No data about your sessions — including the number of completed pomodoros, your chosen durations, your timer state, or any usage patterns — is sent to any server, stored in any database, logged in any analytics system, or shared with any third party. There is no account system, no login, no cookies, and no tracking of any kind. The timer is designed as a pure client-side tool that respects your privacy completely. Your productivity data stays on your screen and nowhere else.

Yes. Once the page has fully loaded in your browser, the Pomodoro timer works completely offline without any internet connection. All timing is done using the browser's built-in timing functions (requestAnimationFrame and Date.now()), the alarm sound is synthesized locally using the Web Audio API, and the session counter is maintained in JavaScript memory. No external servers, APIs, audio files, or online resources are needed at any point during operation. This makes the timer reliable in any environment — on a flight with no Wi-Fi, in a library with restricted internet, or during a network outage. You can bookmark the page and use it as a reliable productivity tool anywhere.

Yes. This Pomodoro timer is completely free to use with no restrictions whatsoever. There are no subscriptions, no premium features hidden behind a paywall, no advertisements, no account registration, and no daily usage limits. You get the full timer functionality including customizable durations, the alarm sound, the session counter, and the visual progress ring — all at no cost. The tool runs entirely in your browser with no server-side processing or cloud infrastructure, which means there are no operational costs to pass on to users. It will remain free permanently. This makes it an ideal alternative to Pomodoro apps that charge subscription fees or display intrusive ads.

The Pomodoro timer features a large circular countdown display with an animated SVG progress ring that provides an instant visual sense of how much time remains in your current session. As time passes, the ring gradually depletes in a clockwise direction, and the remaining time is displayed as minutes and seconds in the center of the circle. The color of the ring changes to indicate the current phase: it shows one color during work sessions and a different color during breaks, so you can identify the current phase at a glance from across the room. This visual design was inspired by analog kitchen timers and is specifically chosen because research shows that circular progress indicators are more intuitive and less anxiety-inducing than linear countdown bars, helping you stay focused without obsessing over the remaining seconds.

The Pomodoro Technique is especially effective for knowledge workers, students, writers, programmers, designers, and anyone who struggles with sustained focus, procrastination, or task switching. Students find it invaluable for study sessions, breaking long revision periods into manageable chunks with built-in breaks that improve retention. Software developers use it to enter and maintain "flow state" during coding while preventing the burnout that comes from working without breaks. Writers and content creators use the technique to overcome writer's block by committing to just one 25-minute session at a time. Freelancers use it to maintain productivity when working from home where distractions are abundant. People with ADHD often find the structured intervals and frequent breaks particularly helpful for maintaining focus. The technique is also popular in offices and teams that use it for focused "deep work" blocks with shared timers.