About
The simplest way to make deep focus a habit
FLEX POMO is a free online timer that helps you practice the Pomodoro Technique. You repeat a cycle of focusing on one task for 25 minutes and resting for 5, and after every four focus sessions you take a slightly longer break. No installation or sign‑up required.
The timer moves between three modes — focus, short break, and long break — and shows your completed sessions as dots and a daily count. Jot down what you're working on in the task label so you never lose track of what you're focusing on. From Classic 25/5 to Deep Work 50/10 and Ultradian 90/20, presets let you switch durations to fit the moment.
Durations, intervals, auto‑start, sound alerts, and desktop notifications can all be adjusted freely in Settings, and your chosen values and progress are saved in your browser so they carry over even after a refresh. Because the timer is calculated from timestamps, it stays accurate even when you're on another tab or your screen is off.
All calculations and storage happen only inside your browser. Your task details and records are never sent to or stored on any server.
What is the Pomodoro technique?
A rhythm of focus and rest
After 25 minutes of focus (one Pomodoro) you take a 5‑minute break, and after repeating this four times you take a longer 15–30 minute break. A short deadline sharpens your focus, and regular breaks keep you from burning out.
One task at a time
During a single Pomodoro, you focus on just one task. If other thoughts come up, jot them down and deal with them after the session ends. Writing your current task in the task label helps.
Why count sessions
The number of Pomodoros you complete is an honest measure of how much you actually focused that day. Use the daily count to see what you've achieved and set goals for the next day.
Processed in your browser
The timer, settings, and records all run on your device. No values are ever sent to a server, and the timer keeps running even if your internet drops.
Frequently asked questions
What is the Pomodoro technique?
It's a time‑management method devised by Francesco Cirillo in the late 1980s, in which 25 minutes of focus and a 5‑minute break form one unit (a Pomodoro) that you repeat. The short, clear deadline boosts focus, while regular breaks prevent burnout. The name ‘Pomodoro’ comes from the tomato‑shaped kitchen timer he used.
Can I change the focus and break durations?
Yes. In Settings you can freely change the focus, short break, and long break durations as well as the long break interval, and you can apply a preset all at once. Your chosen values are saved in your browser.
Won't the time drift if I switch tabs or refresh?
No. The timer is calculated from the end time, so it stays accurate even when you're on another tab or your screen is off. Your progress is saved too, so it picks up right where you left off after a refresh.
I'm not getting the sound or notifications.
You can turn on the sound alert in Settings. Due to browser policies, you need to click the page at least once (for example, the Start button) before sound will play. Desktop notifications only appear if you've granted notification permission in your browser.
Are my records saved on a server?
No. Your timer state, settings, daily completion count, and task label are all kept only in your browser's local storage. Nothing is sent to or stored on a server.