Online Study Timer — Free Pomodoro for Students

Exam prep and long assignments fail in two common ways: you never start because the pile looks endless, or you start and grind for hours until attention collapses. A single countdown on /timer is the right tool for one block — a 45-minute past paper, a 10-minute drill. It is the wrong tool when you need the same focus-break rhythm all afternoon.

onetimer's Pomodoro module is the study timer: it alternates Focus and Short Break, then a Long Break after a set number of Focus blocks. The round counter, optional task list, phase-end alarm, and Auto Start toggles live on that page — not on /timer and not on the date countdown at /countdown.

Short, timed focus blocks reduce the cost of starting.free online timer handles one block at a time — you only have to commit to the next Focus duration, not to finishing the chapter. Breaks give your brain time to consolidate what you just read or practiced. The Pomodoro Technique names each completed Focus block a “pomodoro” — after four of them, you earn a longer rest.

On onetimer, a completed Focus is what advances the round counter. Skip during Focus also counts as a completed pomodoro (it moves you to the next break). Skip during a break returns you to Focus without changing the round. That is product behavior, not a textbook rule — use Skip when you are genuinely done, not to game the count.

Open Pomodoro Settings with the gear in the site navigation (toolbar control labeled Pomodoro settings). Under the Timer group you will see Focus (min), Short Break (min), Long Break (min), Pomodoros until long break, Auto Start Breaks, Auto Start Pomodoros, and Auto Check Task. Classic study defaults:

1. Open /pomodoro. Confirm you are on Pomodoro, not the duration Timer or the date countdown.
2. Click the Pomodoro settings gear in the toolbar (site navigation). The dialog title is Pomodoro Settings.
3. Under Timer, set Focus (min) to 25, Short Break (min) to 5, Long Break (min) to 15, and Pomodoros until long break to 4.
4. Optional: turn on Auto Start Breaks. Leave Auto Start Pomodoros off until you trust the rhythm. Turn on Auto Check Task only if you use estimates on the task list.
5. Under Sound, pick a phase-end alarm and optionally a Focus background track (Rain, lo-fi, piano, and similar). Background audio starts from the speaker control on the timer after a tap — browsers will not autoplay it from a cold load.
6. Click OK. Preferences stay in this browser. Then click Start (or press Space) to begin the first Focus block.

The large digits are the remaining time in the current phase. Start / Pause is Space. Skip (S) while running jumps to the next phase. M mutes Focus background sound when a track is selected. N focuses the add-task field. Shortcuts are off while Settings or the switch-task prompt is open, and while you are typing in an input.

• Toolbar: font size, Toggle fullscreen, and the Pomodoro settings gear. Fullscreen is for a desk-side display so the remaining Focus time stays readable without hovering over the laptop.
• Tasks are optional. Add a task with a pomodoro estimate, select it as the Active Task, then start Focus. The Finish At summary assumes every break runs for its full configured duration — if Auto Start Breaks is off and you pause between phases, real finish time is later.
• When a phase ends without Auto Start, the UI already shows the next phase at full duration while the alarm plays. Click Start during or after the alarm to begin counting down.

This study timer runs in the open /pomodoro tab. It is not a system alarm and it is not a push notification. If you need the phase-end sound on time, treat the tab like equipment.

• Keep the Pomodoro tab open. Closing it stops the session. Pin the tab if you tend to sweep extras away.
• Laptop sleep pauses timers. Disable sleep for the study block, or plug in and keep the lid open. A locked screen that sleeps the machine will not ring.
• Background tabs can be throttled by the browser. Prefer a visible or pinned tab over a buried one if the chime has been late.
• Sound needs a gesture. If the phase-end alarm or Focus background is silent, tap Start or Enable Sound on the page first — autoplay policy blocks audio until you interact.
• Wake Lock (when the browser supports it) can keep the screen awake while the timer runs, but it is not a substitute for keeping the tab open and the device from sleeping.

Stay on Pomodoro for repeating study cycles. That is the page this guide configures.

Use the duration Timer for a one-off block (one past paper, one drill) with Recently Used titles. It does not auto-chain breaks.

Use the date countdown for days until an exam date — not for 25-minute Focus blocks.

Need the same 25-minute block inside Notion? Follow Timer for Notion and paste an /embed/timer URL. A Notion embed is a single countdown, not a full Pomodoro round counter.