Free online timer — fullscreen countdown in your browser
This free online timer runs in your browser tab. Set hours, minutes, and seconds, then start a countdown with a custom alarm — no download and no account. This is a countdown: set a duration, then the numbers run down to zero and the alarm rings. To time elapsed from zero, use the online stopwatch.
Use fullscreen when you need a large countdown on a phone, laptop, or classroom display. Quick presets cover common durations; recently used timers come back in one tap.
When the timer reaches zero it plays your chosen sound and shows an on-screen alert. Keep the tab open so the alarm can ring on time.
Pick the right length for the job
Short timers (5–10 minutes) fit steeping tea, a stretch, or turn-taking in a game. Mid-length timers (15–25 minutes) match a writing sprint, a workout circuit, or a Pomodoro focus block. Long timers (45–90 minutes) cover a class period, an exam section, a long run, or a deep-work block — set it once and stop clock-watching.
The dials accept anything: 90 seconds for soft-boiled eggs, 6 minutes for a presentation rehearsal, 2 hours for slow cooking. Popular lengths have dedicated pre-filled pages — like the 19-minute timer — so a routine countdown is one click away.
Keep it visible, everywhere
Fullscreen turns the countdown into giant digits readable across a gym, classroom, or living room over a TV or projector. On a second monitor, the tab keeps counting while you work in another window.
Two ways to pass it on: the share link encodes the duration, so recipients open the timer already set; and the embed snippet drops a live countdown into your own site or Notion page.
Timer for games
Turn any get-together, party, or classroom into game time with a timer for games that runs right in the browser. Set the round length — 30 seconds for charades, 1 minute for hot potato, 5 minutes for team challenges — and project the fullscreen countdown with giant digits everyone can see from across the room.
When time runs out, the alarm sound marks the end of the round with no arguments. Use the quick shortcuts to restart in one click, keep the tab open between rounds, and adjust the duration for board games, quizzes, scavenger hunts, or party games. Works on PC, laptop, tablet, and phone.
Frequently asked questions
- Is this a free online timer I can use in the browser?
- Yes. Open this page and set a duration — it is a free online timer and countdown with no app to install and no sign-up.
- Can I use the timer in fullscreen?
- Yes. Use the toolbar fullscreen control for a large countdown on a phone, laptop, TV, or classroom screen.
- Does the timer sound an alarm at zero?
- Yes. When the countdown reaches zero, the selected sound plays and an on-screen alert appears. You can preview the sound before you start.
- What is the difference between this online timer and a stopwatch?
- This page is a countdown: you set hours, minutes, and seconds, then the numbers run down to zero and the alarm rings. A stopwatch counts up from zero to record elapsed time and laps. Use this timer for cooking, meetings, and study blocks; use the online stopwatch for running, training, and quizzes.
- What is the difference between this timer and a date countdown?
- This page counts down a duration you set (hours, minutes, seconds). The date countdown module tracks days to a holiday or event. Use this timer for cooking, workouts, and short focus blocks.
- Do I need to keep the tab open?
- Yes. The timer runs in this browser tab. Keep the tab open (or pinned) and avoid putting the device to sleep if you need the alarm to ring on time.
- Is there a keyboard shortcut?
- Yes. Press Space to start or pause the countdown. Fullscreen and sound controls sit one click away in the toolbar.
- Can I share a pre-set timer?
- Yes. Use the Share section to copy a link with the duration encoded — whoever opens it lands on this timer with your duration already set. An embed snippet is available for websites too.