Productivity · Free tool
Online Timer
Free online countdown timer with audible alarm. Set HH:MM:SS, runs in background tab.
Updated May 2026
10:00
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What it does
Free online countdown timer with audible alarm. Same as our /countdown-timer page; this URL captures "online timer" search intent.
Embed this tool on your siteShow snippetHide
Paste this snippet into any page. Loads on-demand (lazy), no tracking scripts, and sized to most dashboards. Replace the height to fit your layout.
<iframe src="https://freetoolarena.com/embed/online-timer" width="100%" height="720" frameborder="0" loading="lazy" title="Online Timer" style="border:1px solid #e2e8f0;border-radius:12px;max-width:720px;"></iframe>How to use it
- Set the duration (HH:MM:SS).
- Press Start.
- An alarm plays when time's up.
Frequently asked questions
- Does it work in a background tab?
- Yes. The timer keeps counting in background tabs; the alarm fires when the time elapses even if you've switched away.
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Learn more
Guides about this topic
- Productivity & Focus · GuideHow to Stay Productive DailyStay productive without hustle culture. Nine daily habits that keep output high and burnout away.
- How-To & Life · GuideMorning Routine for SuccessBuild a morning routine that sets up your day. Science-backed steps, realistic time blocks, no 4 a.m. talk.
- Productivity & Focus · GuideHow to Focus BetterFocus for 90 minutes at a time with three mechanics: environment, rhythm, and the one-tab rule.
- Productivity & Focus · GuideHow to Stop ProcrastinatingStop procrastinating with tactics that beat willpower: 2-minute rule, task framing, and environment design.
- Productivity & Focus · GuideTime Management Tips for StudentsManage your time as a student: time-block classes + study, use the pomodoro technique, protect sleep.
- How-To & Life · GuideHow to Wake Up EarlyWake up early without hating life. Shift your bedtime in 15-minute steps, fix your first 10 minutes.
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