Countdown Timer & Pomodoro
A simple online countdown timer with quick presets, plus a Pomodoro mode that cycles 25 minutes of focused work with 5-minute breaks. It beeps when time is up and runs entirely in your browser. The timer ticks down via a one-second setInterval clamped at zero (Math.max(0, r − 1)), so it can never go negative, and the alert is a synthesized 880Hz sine tone through the Web Audio API — ramped down over 0.7 seconds rather than an audio file — so nothing is downloaded and the beep still plays with sound files blocked. Pomodoro mode has no fixed cycle count: it alternates 25-minute focus and 5-minute break periods indefinitely, incrementing a "completed focus sessions" counter each time a focus period ends, until you switch modes or leave the page — that counter lives only in React state, not browser storage, so refreshing resets it to zero.
5:00
Pick a preset and press Start — the timer beeps when it reaches zero. Runs in your browser.
How This Tool Works
For a countdown, pick a preset and press Start. For focus sessions, switch to Pomodoro mode — it runs 25 minutes of work, beeps, then a 5-minute break, and counts your completed sessions.
Formula & Method
The timer counts down one second at a time and sounds a tone when it reaches zero using your browser’s audio. Pomodoro mode automatically alternates 25-minute focus periods with 5-minute breaks.
Example Calculation
Selecting Pomodoro mode loads a paused 25:00 clock labeled "🎯 Focus time." Pressing Start ticks it down once per second; when it hits 0:00, the browser plays a two-thirds-second 880Hz tone, "Completed focus sessions" increments from 0 to 1, and the timer automatically resets to 5:00 under a "☕ Break time" label — no button press needed to continue. When that break also reaches 0:00, it beeps again and flips back to a fresh 25:00 focus period. After two full focus/break cycles, the display reads "Completed focus sessions: 2." Switching to Countdown mode at any point — say, tapping the 10 min preset — stops the Pomodoro timer entirely and loads a fresh, paused 10:00 countdown instead, which needs its own Start press.
Frequently Asked Questions
What is the Pomodoro technique?+
A time-management method: work with full focus for 25 minutes, then take a 5-minute break, and repeat. This timer runs the cycle and beeps at each switch automatically.
Will it beep if I switch tabs?+
The countdown keeps running in the background, and the beep plays when time is up as long as the tab is open. Keep the tab open (not closed) for the alert to sound.
Is there a download or sign-up?+
No — it runs entirely in your browser with no account, no app, and no data collection.
Do I need to restart the timer for every Pomodoro cycle, or does it keep going on its own?+
It keeps going on its own — once started, Pomodoro mode automatically alternates 25-minute focus periods and 5-minute breaks with no button presses in between, beeping and switching labels at each transition, and tallying a running count of completed focus sessions until you pause it, switch modes, or leave the page.
Does my completed Pomodoro session count get saved if I refresh the page?+
No — the session counter and timer state exist only in the page's memory (React state), not in any saved file or browser storage, so reloading the page or navigating away resets the completed-sessions count back to zero.
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<a href="https://everyfix.net/tools/countdown-timer/">Countdown Timer & Pomodoro</a> by <a href="https://everyfix.net">EveryFix</a>Related Tools
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