25 Minute Timer Online
FreeFree 25-minute timer — one Pomodoro interval. Starts instantly, plays an alert at zero. No setup, no account, just 25 minutes.
What's next
Settings guide
Common use patterns:
Before starting: close email, silence your phone, enable do-not-disturb on your OS, and write the specific task you are working on. A defined task makes the interval more productive than an undefined "work on the project."
During the interval: do not check notifications. If you think of something else you need to do, write it on paper or a scratch document and return to your main task. Protect the interval.
When the timer ends: stop working on the task, regardless of where you are in it. Note your stopping point. Take a 5-minute break — stand up, walk away from the screen. Return for the next 25-minute session.
Session tracking: If you want to track how many 25-minute sessions you complete, keep a simple tally on paper. Four sessions = a long break. The full Pomodoro Technique timer automates this cycle for you.
Format comparison
vs the full Pomodoro timer: The full Pomodoro timer automates the complete work/break cycle — it transitions between work sessions and breaks automatically and tracks session counts. This 25-minute timer does one thing: count down 25 minutes and alert you. Use the full Pomodoro timer for complete implementation of the technique; use this for a single timed session without any surrounding structure.
vs a phone timer: Phone timers are fast to set. This browser timer is preferable when you are already at a computer, want the time visible on screen, or want to avoid the distraction of picking up your phone during a focus session. Starting a focus session on your phone — the device that contains your notifications — carries inherent risk of distraction.
How it works
Define your task
Before pressing Start, write down exactly what you will work on for the next 25 minutes. Clarity improves the session quality.
Press Start
The 25-minute countdown begins. The remaining time is visible in the tab title — switch to your work tab and the time is always visible in the tab strip.
Stop when the alert sounds
When the timer alerts, stop working. Take a 5-minute break before the next session.
About this format
The 25-minute timer is the standard unit of the Pomodoro Technique — one focused work session. Load this page, press Start, and you have 25 minutes of dedicated focus time. No configuration, no signup, no friction.
The 25-minute interval is the most researched focused work duration for knowledge workers. It is long enough to accomplish meaningful work but short enough to maintain focus without cognitive fatigue. The alert at the end is the cue to stop and rest — which is equally important to the focused work period.
Use it for: a single Pomodoro session without the full cycle automation; timed practice sessions for language learning, music, or skills practice; a writing sprint; a focused reading window; a constraint for estimating how long a task takes (can you finish this in one 25-minute session?); or a meeting agenda item with a hard stop.
The timer displays remaining minutes and seconds with the remaining time also shown in the browser tab title. This means you can start the timer and work in another tab — the time remaining is visible in the tab strip without switching back.