Countdown Timer

Countdown Timer

Count down to any future date and time. Sharable URL, embeddable iframe, live big-digit display. Perfect for New Year, weddings, product launches, livestream overlays.

Countdown Timer — TL;DR

Count down to any future date and time. Sharable URL, embeddable iframe, live big-digit display. Perfect for New Year, weddings, product launches, livestream overlays.

Pomodoro and stopwatches measure relative time — "25 minutes from now" or "how long has this been running". This Countdown Timer measures absolute time — "how long until this specific date and time". The target stays fixed: refresh the page, come back tomorrow, the countdown is still pointing at the same moment. Use this for events; use the Stopwatch & Timer for tasks.

Yes. Click Copy share link and paste it anywhere — Slack, email, a tweet, a blog post. The URL contains the entire state (target time + optional title), so when the recipient opens it they see the same countdown to the same moment, on any device, no account needed.

Event titles, dates, and shared links never leave your device. Open DevTools → Network and you'll see zero outbound requests during use.

Days
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Hours
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Minutes
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Seconds

Quick presets

More than just digits

Built for events, livestreams, classrooms, and personal moments — not just timing a coffee break.

Count down to any moment

Pick any future date and time, optionally add a title. The display updates every second; days / hours / minutes / seconds always add up to exactly how much time is left.

Shareable URL deep-link

Click Copy share link to get a URL like ?to=2027-01-01T00:00&title=New%20Year. Anyone who opens the link sees the same countdown to the same moment — no install, no account.

Embeddable iframe

Append &embed=1 to the share URL and the page strips its chrome — perfect for embedding in a livestream overlay (OBS, Streamlabs), a blog post, a wedding website, or an event landing page. <iframe src="…?to=…&embed=1">.

Event presets

One-click presets for New Year, Christmas, and "in 7 / 30 / 100 days". Plus the last 10 custom events you've used are saved locally for one-click recall.

Alarm + page flash on zero

When the countdown reaches zero, the page rings a Web Audio chime and flashes the document title and favicon — so users see it from another browser tab.

Privacy by design

Every tick runs in JavaScript on your device. No event titles, no dates, no clipboard activity is ever transmitted. Open DevTools → Network and verify zero outbound requests.

How to use the countdown

Three steps to a sharable, embeddable countdown.

  1. 1

    Pick the target moment

    Click into the date+time picker and pick any future moment, or hit a preset (New Year, Christmas, +7 / +30 / +100 days). Optionally type an event title — "Wedding Day", "Product Launch", "Final Exam" — and it appears above the digits.

  2. 2

    Copy the share link

    Click Copy share link and paste anywhere. The URL encodes the entire countdown state — friends, family, customers, audience all see the same countdown to the same moment when they click.

  3. 3

    Embed if you want

    For livestreams, blogs, wedding websites, or event landing pages, add &embed=1 to the share URL and drop into an <iframe>. Embed mode strips the navbar, footer, and config — leaving only the digits.

  4. 4

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Built for events large and small

Four common scenarios where a sharable, embeddable countdown beats a lock-screen reminder.

Product launch / sale countdown

Embed a countdown on your landing page so visitors immediately see when the launch happens or when a flash sale ends. The URL deep-link works for marketing emails too — recipients click and see the same live countdown without leaving the brand experience.

Weddings, birthdays, milestones

Set the date, give it a title, share the link with the family group chat. Anyone who opens the link sees the live countdown — perfect for wedding website embeds, save-the-date emails, or just a chat-room reminder that sits there ticking.

Livestream segment timing

Use the &embed=1 URL as a browser source in OBS / Streamlabs to show a countdown to stream start, AMA cut-off, giveaway end, or auction close — visible to viewers as part of the broadcast itself.

Exam / deadline / project review

Pin a countdown to your bookmark bar and the seconds tick away every time you open a new tab. The document title shows the time remaining too, so it's visible whenever you scan your tab list — gentle but constant motivation.

100% private — runs in your browser

Event titles, dates, and shared links never leave your device. Open DevTools → Network and you'll see zero outbound requests during use.

  • All countdown ticks, alarm sounds (Web Audio API), and clipboard writes happen as JavaScript on your machine — visible in the page source.
  • Saved events live in localStorage only; we never sync them to a server.
  • No login, no telemetry on event titles, no third-party countdown service. We only use one cookie for cookie-consent state and one for language preference.

Related guides

Hand-picked reads on countdowns, livestream embeds, and event marketing.

Frequently asked

How is this different from a Pomodoro timer or a stopwatch?

Pomodoro and stopwatches measure relative time — "25 minutes from now" or "how long has this been running". This Countdown Timer measures absolute time — "how long until this specific date and time". The target stays fixed: refresh the page, come back tomorrow, the countdown is still pointing at the same moment. Use this for events; use the Stopwatch & Timer for tasks.

Can I share a countdown with someone else?

Yes. Click Copy share link and paste it anywhere — Slack, email, a tweet, a blog post. The URL contains the entire state (target time + optional title), so when the recipient opens it they see the same countdown to the same moment, on any device, no account needed.

Can I embed this in my website or livestream?

Yes. Add &embed=1 to the share URL and drop the result into an <iframe>. Embed mode hides the navbar, footer, configuration panel, and ads — leaving only the big-digit display on a transparent background. Works in OBS / Streamlabs browser sources, WordPress / Squarespace embeds, Notion, and any standards-compliant site.

Is the countdown accurate over hours and days?

Yes. We compare the live Date.now against an absolute target millisecond — so even if your laptop sleeps for hours, comes back, or you switch tabs and the browser throttles JavaScript, the displayed time is recomputed from the absolute target on every tick. There's no cumulative drift.

Is anything sent to your server?

No. The target time, the event title, the share-link generation, and the alarm playback all run as JavaScript in your browser. The last 10 events you've used are saved in localStorage on your device. Open DevTools → Network and you'll see zero outbound requests during use.