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About this tool
Pomodoro focus timer with gentle tone cues at every phase change, custom focus and break lengths, and a full session plan.
Pomodoro Sound Cue Timer runs a complete pomodoro session — focus blocks, short breaks and a long break after every set — and plays a short two- or three-note tone at each phase change so you never have to watch the clock. It follows the classic Pomodoro Technique defaults of 25 minutes of focus, a 5 minute short break and a 15 minute long break after four pomodoros, and every interval is adjustable. Tones are generated in the browser with the Web Audio API, so nothing is downloaded and the timer works offline.
Open Pomodoro Sound Cue Timer on AltFTool — it loads instantly in your browser.
Add your input to the workspace.
Adjust the options until the result looks right.
Copy or download the output and put it to work.
Distinct rising, falling and three-note cues tell focus, short break and long break apart without looking.
See every focus block and break on one timeline, with total focus time and the finish time.
Tones are synthesised locally with the Web Audio API and the timer keeps running offline.
A classic pomodoro is 25 minutes of focused work followed by a 5-minute break, and after four pomodoros you take a longer break of 15 to 30 minutes. That works out to roughly two hours of focused work plus 30 minutes of rest per set.
Browsers block audio until you interact with the page, so press Start or Test cue once to unlock sound. Also check the cue toggle is on, the volume slider is above the minimum, and that the tab is not muted in your browser's tab menu.
It depends on the task. Shorter 25-minute blocks suit interruption-prone or aversive work because the finish line is close, while 50-minute blocks suit tasks with a long warm-up such as writing, editing or debugging. Whichever you pick, take the break away from the screen — that is the part that restores attention.
Yes. Elapsed time is measured against the system clock rather than counted frame by frame, so the session stays accurate in a background tab. Some browsers delay audio in inactive tabs, so keep the tab visible if the cue tone matters.