Online Countdown Timer & Alarm

Online countdown timer with Web Audio alarm sounds, customizable hour/minute/second presets, and full-screen pitch-black focus mode.

Online Countdown Timer & Sound Alarm
Space Start/PauseR Reset
25:00
Focus Session
:
:
Quick Set:
🔒 Processes 100% locally in your browser using standard Web Audio synthesized chimes — zero server tracking.

Online Countdown Timer & Sound Alarm Studio

The DwellixTools Online Countdown Timer & Alarm Studio provides a distraction-free, customizable time management experience for work, study sessions (Pomodoro technique), cooking, and workouts.

Features & Capabilities

  1. Custom & Preset Durations: Enter exact Hours, Minutes, and Seconds or select one-click presets (1m, 5m, 10m, 25m Pomodoro, 30m, 45m, 60m).
  2. Synthesized Alarm Chimes: Pick from 4 Web Audio synthesized alarm sound options: Digital Chime, Classic Bell, Gentle Beep, and Radar Pulse with instant preview testing.
  3. Pure Black Fullscreen Mode: Click Full Screen to enter a pitch-black focus mode (#000000) with auto-hiding controls for zero-distraction productivity.
  4. Keyboard Hotkeys: Press Spacebar to Start or Pause the timer, and R to Reset.

Frequently Asked Questions (FAQ)

Will the alarm sound if my browser tab is minimized?

Yes! The Web Audio API alarm sound will trigger as long as your browser window remains open.

Are my timer settings saved on a server?

No. All timer calculations and Web Audio sound synthesizers run 100% locally in your browser with zero tracking or server logs.