A Pomodoro timer is a small promise: work on one thing until the block ends, then stop. The hard part is not the arithmetic. It is leaving the block alone while it runs, and trusting that the break is part of the method rather than a reward you have to earn by feeling finished.
Francesco Cirillo began developing the Pomodoro Technique in the 1980s, while he was a university student who could not settle into his studies. He used a tomato-shaped kitchen timer and asked whether he could concentrate for a short stretch. The official site still describes that origin, and it is careful about what the technique is. The timer is part of the practice, but the technique is more than a sequence of 25 minute sessions. Cirillo connects the timer with planning, estimating effort, recording what happened, taking breaks, and reviewing the day. On his own page he also says that the familiar 25 minute sessions are one expression of that method, not the whole of it.
Clockbeam’s Pomodoro timer is the timer portion of that practice. It does not give you an activity inventory, a paper log, or a place to estimate how many sessions a task will take. Those stay in a notebook or a task list if you want them. The page gives you a focus block, a short break, a long break, and a count of how many focus blocks you have finished in this round.
What the page opens on
The Pomodoro page waits at 25:00. Nothing starts because you opened the tab, which matters if you keep the page ready on a second screen. Press Start when you are actually going to work. Pause holds the remaining time. Reset returns you to a fresh focus block and clears the session count.
The default lengths are the ones people mean when they say “a Pomodoro”: 25 minutes of focus, 5 minutes of short break, and 15 minutes of long break. A long break follows four focus sessions. You can change Focus, Short break, Long break, and Focus sessions before a block is running. The page keeps each length between 1 and 90 minutes, and it keeps the number of focus sessions between 2 and 8. While a block is running, those fields stay locked so a stray keypress does not rewrite the session underneath you.
The button next to the timer says either “Wait for the next step” or “Continues on its own.” Waiting is the default. When a block ends, the page names the next step: start the short break, start the long break, or start the next focus. You press that button when you are ready. If you turn on Continues on its own, the next block starts once. It does not skip through several missed sessions if you walked away. That is a useful limit. An automatic timer that silently burns through a whole afternoon of breaks would be lying about the time you spent.
Space starts or pauses. R resets. F fills the screen. Those shortcuts are on the page so you do not have to hunt for the button in the middle of a sentence.
One session, from the first start to the long break
Decide the task before you press Start. Cirillo’s wider method treats that choice as its own step: you pick the work, you guess how much effort it needs, and only then do you wind the timer. On Clockbeam the guess lives outside the page. Write “draft the introduction” on a card if that helps. The timer will not store the title of the task.
Press Start. For 25 minutes, that task is the only thing the block is for. If you remember an email, write the reminder on the card and return to the draft. The point of a short, named interval is that the interruption has somewhere to wait.
When the focus block ends, the page waits, unless you turned automatic continuation on. Stand up for the short break if you can. Five minutes is long enough to leave the chair and short enough that the work is still in your head when you come back. The 5 minute timer is a separate countdown for a break you want on its own. You do not need it during a Pomodoro round, because the short break is already the next step.
After the fourth focus session, the next step is the long break. Fifteen minutes is the default. Use it as a real stop: water, a walk, a window. Then Reset if you are done with the round, or continue into another focus block. Reset is also how you abandon a round that no longer matches the afternoon. It clears the count. It does not scold you.
If you want a different rhythm, change the lengths before the next Start. A 50 minute focus and a 10 minute short break is still the same machine. A 15 minute focus is still the same machine. What changes is the promise you are making, not the controls.
Sound, the open tab, and saving the lengths
The sound menu offers a chime, a bell, a soft tone, or no sound. The chime plays only while this tab is open and the device is awake. Preview is not a separate step you must pass. After you press Start, the selected sound is the one that can play at the end of the block. A hidden browser, a locked screen, or a closed laptop can miss it. That is a property of a page, not a defect you can toggle away.
If the ending sound matters, leave the tab open and the display awake. Fullscreen keeps the remaining time large, which helps when the laptop is across a table. Fullscreen is still the same tab. Closing the lid ends the arrangement.
You can save the lengths, the cycle, the sound, and the display in this browser. A saved setup is the configuration, not a recording of today’s session. A running session stays on this page until you reset it. Clearing site data removes the saved setup. There is no account to restore it from.
Share links carry the configuration. They do not remote-control someone else’s timer. The same is true of the embed. The widget builder can place a Classic 25/5, a Deep work 50/10, or a Short focus 15/5 session on another site. Each visitor gets a fresh timer in their own browser. Closing that browser does not keep it running, and your saved setups on Clockbeam are not copied into the widget.
What this timer will not do
It will not track a task list. If you need to know whether the introduction is done, that fact lives in the document, not in the session count. The count only says how many focus blocks have finished in the current round, so the long break arrives on time.
It will not run in the background as a phone alarm. If you need a bell after you leave the building, use a device that is built to ring while locked. The Pomodoro page is for a computer you are sitting with.
It will not invent a record of sessions you missed. Automatic continuation starts the next block once. If you were away for an hour, you come back to that next block or to a finished one. You do not get a fictional stack of completed Pomodoros.
It is also not the whole technique Cirillo teaches. Planning the work, estimating it, recording the effort, and comparing the estimate with what happened are still yours to do. The page can be the kitchen timer. The sheet of paper can be the rest.
A single countdown, with no break built in, is the online timer. Use that when the block should end and stay ended: a meeting, a drill, a stretch of reading that is not part of a focus-and-break round. The difference is the next step. A Pomodoro has one. A plain countdown does not.
A simple way to start today
Pick one task that can survive 25 minutes of attention. Open the Pomodoro page. Leave the defaults alone for the first round, so you are learning the rhythm rather than tuning it. Press Start. When it ends, take the short break the page offers. Do that four times, then take the long break.
After the round, write one line about what you finished and whether 25 minutes was the right length. That line is the recording step the official method keeps asking for. Tomorrow you can lengthen the focus or leave it. The timer will still wait until you press Start.
