BYTETOOLS

Pomodoro Timer

A configurable Pomodoro timer with work, short break and long break cycles, session counter, completed-cycle log and an optional end-of-session beep.

Focus · round 1 of 4

25:00

0
Completed focus rounds
0
Total focused minutes

Completed rounds appear here. Changing the durations while the timer is idle updates the clock immediately.

What is the Pomodoro Timer?

The ByteTools Pomodoro Timer runs the classic focus cycle: a stretch of concentrated work, a short break, and a longer break after a set number of rounds.

  • Editable work, short break and long break durations
  • Long break after a configurable number of rounds
  • Clock-corrected countdown that survives background tabs
  • Optional auto-start of the next phase
  • Session log with completed rounds and total focus minutes
  • Built-in beep synthesised in the browser — no downloads

How to use the Pomodoro Timer

  1. 1

    Set your work, short break and long break lengths, and how many rounds before a long break.

  2. 2

    Press Start to begin the first focus session.

  3. 3

    Work until the timer ends, then take the break it offers.

  4. 4

    Use Skip to jump to the next phase or Reset to clear the cycle and start over.

  5. 5

    Check the session log for completed rounds and total focused time.

About the Pomodoro Timer

The ByteTools Pomodoro Timer runs the classic focus cycle: a stretch of concentrated work, a short break, and a longer break after a set number of rounds. The default 25/5/15 pattern is fully editable, so you can run 50/10 deep-work blocks or 15/3 sprints without changing tools.

The countdown is corrected against the system clock rather than counted tick by tick, so it stays accurate even if the browser throttles background tabs — a timer left running in an inactive tab will not silently fall minutes behind. Sessions advance automatically or wait for you, whichever you prefer.

A running log records each completed round with its length, and the totals show focused minutes for the session. An optional end-of-round tone is synthesised with the browser's own audio engine, so no sound file is downloaded. Nothing is uploaded and no account is needed.

Frequently asked questions

What is the Pomodoro Technique?

It is a time management method that breaks work into focused intervals — traditionally 25 minutes — separated by short breaks, with a longer break after four rounds. The idea is that a fixed, protected block is easier to start and easier to defend from interruptions than an open-ended session.

How long should a Pomodoro session be?

The classic length is 25 minutes of work and a 5 minute break, with a 15 to 30 minute break every fourth round. Many people find 50/10 suits deep technical work better, and shorter 15 minute rounds help when concentration is hard, so all three lengths are editable here.

Does the timer keep running if I switch tabs?

Yes. The remaining time is calculated from the actual clock rather than counted down tick by tick, so even if the browser throttles the tab in the background the timer shows the correct time when you return.

Will the timer make a sound when the session ends?

Only if you enable the beep, and only after you have interacted with the page — browsers block audio until then. The tone is generated by the Web Audio API built into your browser, so no sound file is downloaded and the timer still works offline.

What should I do during a Pomodoro break?

Step away from the screen if you can — stand up, stretch, get water, look out of a window. The break is meant to reset attention, so switching to another screen-based task tends to defeat the purpose.

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