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Timer

Set a countdown timer for any duration. Get an audio and visual alert when time runs out.

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00:00
Space Start / Pause  ·  R Reset
⏰ Time's up!

About Online Timer — Free Countdown Timer with Visual and Audio Alert

This free online timer lets you set a countdown for any duration in hours, minutes, and seconds. It features a shrinking circular progress ring, an urgent red-flash mode when under 10 seconds, and an audio beep alert when the countdown reaches zero. Quick-select preset buttons for 1, 3, 5, 10, 15, 30 minutes, and 1 hour let you start common durations in one click without typing anything. No installation or account is required — the online timer runs entirely in your browser on any device.

Countdowns are used in almost every area of daily life. Students use a timer to time exam practice sessions and study blocks. Cooks set a kitchen timer to track boiling eggs, baking, or simmering sauces. Athletes use a countdown timer for interval training, rest periods, and timed drills. Teachers time classroom activities and quizzes. Remote workers use timers for Pomodoro-technique focus sessions and scheduled breaks. Presenters rehearse talks within strict time limits. This online timer covers all these scenarios in a single, fast-loading browser tab.

How to Use the Online Timer

  1. Open the timer in your browser — no download or sign-up is needed. The timer loads on any device with a modern browser.
  2. Set your desired duration. Either click one of the Quick Preset buttons (1 min, 3 min, 5 min, 10 min, 15 min, 30 min, 1 hour) to populate the time fields instantly, or type a custom duration directly into the Hours, Minutes, and Seconds input fields.
  3. Click Start (or press Space on a keyboard) to begin the countdown. The input fields are replaced by the animated circular progress ring showing the remaining time.
  4. Click Pause at any point to freeze the countdown. Click Resume (or press Space again) to continue from where you paused. The progress ring stays at the paused position.
  5. When the timer reaches zero, an audio beep plays and a "Time's up!" banner appears on screen. Click Reset (or press R) at any time to return to the input fields and set a new duration.

Key Features of This Online Timer

Several features make this online timer more useful than a basic countdown — from the visual ring to keyboard control and audio alerts.

  • Animated circular progress ring: A circular ring tracks elapsed time visually, shrinking proportionally as the countdown runs. This gives you an at-a-glance sense of how much time remains without needing to read the numbers precisely. The ring is smooth and responsive, updating in real time via requestAnimationFrame.
  • Urgent mode with red pulse: When fewer than 10 seconds remain, the progress ring and the time display both turn red and pulse. This provides a clear visual warning that time is almost up, useful when you are glancing at the screen from across the room or in a busy environment.
  • Audio alert using Web Audio API: When the countdown reaches zero, three short beeps play automatically using the Web Audio API — no external sound file is required. The alert works in any browser that supports the Web Audio API, which includes all modern browsers on desktop and mobile.
  • Pause and resume mid-countdown: The timer can be paused at any point and resumed from exactly where it stopped. The underlying countdown uses a high-resolution performance timer to ensure accuracy even after multiple pause and resume cycles.
  • One-click quick presets: Seven preset buttons cover the most commonly needed durations. Clicking a preset populates the time fields instantly. If the timer is already running, clicking a preset resets it to the new duration and returns to the input view so you can start fresh.
  • Keyboard shortcuts: Space starts and pauses the timer; R resets it. These shortcuts are active whenever the timer tab is focused and cursor is not in an input field, allowing hands-free control during physical activities or cooking.

Tips for Getting the Best Results

How to get reliable timing in every situation:

  • Interact with the tab before starting a long timer: Browser autoplay policies require at least one user interaction with the page before audio can play automatically. Click any button — Start, a preset, or Reset — before walking away from the screen. This ensures the audio alert will play when the timer finishes, even if the tab is in the background.
  • Keep the browser tab open for background timing: The countdown continues accurately when you switch to other tabs, because the timer uses wall-clock time rather than display ticks. However, the audio alert may not play in browsers that aggressively throttle background tabs. For critical timing, keep the timer tab visible or return to it before the countdown ends.
  • Use the Pomodoro technique with the preset buttons: The 25-minute Pomodoro work session and 5-minute break are not preset by default, but you can set them by typing 25 in the minutes field. After each session, click Reset and switch between your work timer and break timer using the 5 min preset. The timer resets quickly so transitions stay smooth.
  • Use keyboard shortcuts for physical activities: If you are timing exercise intervals or cooking steps and your hands are occupied, use the Space bar and R key to control the timer without touching the mouse. Position the browser window where you can see the progress ring from a distance.
  • Set a maximum duration for extended tasks: The timer supports up to 99 hours, so it can handle overnight processes, long baking projects, or extended soaking times. For very long durations, the progress ring still works correctly but the visual changes will be imperceptibly slow until the final minutes.

Why Use an Online Timer

A browser-based online timer has several advantages over smartphone timer apps and physical kitchen timers. It opens instantly without navigating through an app, requires no installation, and works on every device with a browser — including work computers, tablets, and shared devices where you cannot install apps. The visual progress ring and urgent mode provide richer feedback than a simple digital number display. Because all processing happens locally in your browser, no usage data is sent anywhere.

The combination of quick presets, custom duration input, pause-resume capability, visual ring, and audio alert makes this online timer a complete solution for everyday timing tasks from the kitchen to the classroom to the gym.

Frequently Asked Questions about Online Timer

The countdown continues accurately in the background because it uses the browser's high-resolution wall-clock timer rather than display updates. However, browser autoplay policies may prevent the audio beep from playing if the tab has been in the background without any interaction. To ensure the audio alert fires, interact with the tab at least once before switching away. The visual "Time's up!" banner will always appear when you return to the tab, regardless of background behaviour.
The hours field accepts values up to 99, and the minutes and seconds fields accept values up to 59, giving a maximum duration of 99 hours, 59 minutes, and 59 seconds — approximately 4 days. The progress ring and accurate countdown function correctly for the full range. For most everyday uses, the preset buttons cover the most common durations, but custom durations up to the maximum are fully supported.
Yes, completely free with no account, subscription, or sign-up required. All features — presets, custom duration, pause and resume, the progress ring, the audio alert, and keyboard shortcuts — are available without restriction. There is no usage limit and no premium version. The tool is ad-supported to remain free for all users.
Yes. The online timer runs entirely in your browser using client-side JavaScript. No timer duration, usage information, or any other data is sent to any server. The audio alert is generated locally using the Web Audio API with no external sound file loaded. Closing or refreshing the tab clears any timer state from memory immediately. There is nothing to log because nothing leaves your device.
Yes. The timer is fully responsive and works in mobile browsers on iOS and Android. The preset buttons and Start, Pause, and Reset controls are touch-friendly. The circular progress ring scales to fit smaller screens. On mobile, the audio alert requires the user to have interacted with the page before the timer starts (the browser's autoplay policy), which is satisfied by tapping Start or any preset button.
Yes. Click the Pause button or press Space to freeze the countdown at the current remaining time. The progress ring stays at the paused position. Click Resume (or Space again) to continue from exactly where you paused. You can pause and resume as many times as needed during a session. Note that refreshing the page will reset the timer, so avoid reloading the tab while paused if you want to preserve the remaining time.
When the countdown reaches zero, the timer plays three short beeps using the Web Audio API, which generates sound tones directly in the browser without loading any external audio file. This means the audio alert works offline once the page has loaded and does not depend on any specific audio format or codec. The frequency is set to a clear, attention-getting 880 Hz tone. If the alert does not play, check that your device volume is not muted and that the tab has been interacted with before the timer ran out.
The progress ring is a circular visual indicator that appears when the timer is running. It starts as a full circle and gradually shrinks in proportion to the remaining time — when half the time is gone, the ring is half empty. When fewer than 10 seconds remain, the ring turns red and pulses to alert you visually that the timer is almost done. The digital time remaining is also displayed inside the ring. The ring disappears when you reset the timer and return to the input view.