It removes the mental maths
Nobody works out what "ends 11:59pm Pacific" means in their own timezone. The timer has already done it, in their local time, in the size of the number.
Make your deadline stand out in every campaign with an email countdown timer. Create your timer for free, set the end date and copy the HTML code into Mailchimp, Klaviyo, HubSpot or another email platform that supports HTML.
Doors close tonight — 40% offInbox
OFFER ENDS IN
40% off, until the clock runs out
Redrawn on every open · no script, no iframe
The basics
An email countdown timer is an animated image in a marketing email that shows how much time is left before a deadline: a sale ending, a launch going live, a webinar starting, a cart reservation expiring.
Email clients do not run JavaScript, so a countdown in an email cannot be a live script the way it is on a web page. Instead, the email contains an ordinary image tag that points at CountdownShare. When the subscriber opens the email, their inbox requests the image, and we draw it at that moment with the exact time remaining, animated so it ticks down while they read.
Why it works
A campaign competes with everything else in the inbox. A deadline written as text is something a reader has to decode and remember; a deadline they can watch moving is something they act on while the email is still open. That is the whole mechanism — it moves the decision from later to now.
Nobody works out what "ends 11:59pm Pacific" means in their own timezone. The timer has already done it, in their local time, in the size of the number.
Most clicks do not happen on the first read. Because the image is redrawn on open, someone returning the next morning sees a shorter countdown, not a stale one — and a shorter one is more persuasive.
A button on its own asks for a decision with no cost to delay. The same button under a running clock has a reason to be pressed now, which is what separates a good open rate from a good click rate.
Urgency only works when it is real. A countdown on a deadline you will not actually honour trains subscribers to ignore the next one, so point it at something true — a price that changes, a cart that closes, a session that starts.
Designs
Pick the shape that suits the send. Every design renders to an animated GIF that any email client can show, and switching between them changes the picture, never the code you pasted — so you can change your mind after the campaign has gone out.
Every style, any colour
Each design pairs with the full theme palette, so the digits and the box take your brand colour. Contrast is checked on render, so digits stay readable on light and dark templates alike.
Worked examples
The timer is an image, so it sits wherever an image can: above the fold, beside the offer, or right on top of the button. These are the four sends it earns its place in most often.
Black Friday — 50% off ends tonight
BLACK FRIDAY
50% off everything
Ends when the clock does. No code needed.
In the inbox
Design: Split
Black Friday, Cyber Monday, end-of-season — a deadline the reader can see beats a deadline they have to read about. The image re-renders on every open, so it is always right.
Consistent deadline
Campaigns get confusing when the email says one thing, the landing page says another, and the website banner keeps running after the offer is over. CountdownShare is built around one timer that can appear in multiple places: email output, a matching countdown page, and a website countdown timer embed.
That matters for subscribers who open late or click twice. The email timer can link to the same destination as your CTA, while the shareable page gives you a fallback when an email platform strips formatting or when you want a simple campaign URL for social, sales, or support.
Timer types
Most campaigns need a fixed date. Automated flows and repeating offers need a deadline that changes per subscriber or per cycle, and those are created through the API.
Counts down to one date and time in your chosen timezone. Every subscriber sees the same deadline, which is right for a sale, launch, or registration close.
A separate deadline for each subscriber, such as 48 hours from when they joined. Personalized timers in the API store one deadline per subscriber ID and return a GIF for each.
How it worksResets on a schedule, such as a daily order cutoff or a weekly deal. The email GIF always shows the next upcoming deadline.
How it worksGives each website visitor their own window from their first view. Pair it with the email so the landing page keeps the urgency going.
How it worksAfter the deadline, the email image shows zero. The website embed and shareable page can show a message, redirect, or count up instead, so late openers who click through land on something that still makes sense.
Setup workflow
Normal website countdown code is not reliable in email. Most inboxes block JavaScript and iframes, so the email version needs to be an image-based timer or an animated GIF that an email client can render like a normal image.
Set the exact campaign end date, time, and timezone before you design the email. This keeps your subject line, body copy, landing page, and timer aligned.
Choose the campaign title, preset, colors, labels, and destination URL. The preview updates immediately, so you can check the design before creating the timer.
CountdownShare creates an animated email countdown GIF. Free uses the basic design with CountdownShare branding, Basic removes the branding, and Pro unlocks every email design and theme.
Use the full linked HTML when your editor supports custom code. Use the direct image URL when your editor works better with an image block.
Add the snippet near the campaign CTA in Mailchimp, Klaviyo, Brevo, HubSpot, ActiveCampaign, ConvertKit, SendGrid, Gmail, Outlook, or another email tool that supports images or HTML.
Open the test in the inboxes your audience uses. Check Gmail, Outlook, Apple Mail, mobile width, image-blocked behavior, and the click destination before the real send.
Need the lower-level HTML details? Use the HTML email countdown timer guide after creating your timer. Still deciding which tool to standardise on? The free email countdown timer comparison covers what to check before you commit a campaign to one.
The email embed is an ordinary <img> tag pointing at a hosted, animated GIF. Any platform that lets you paste HTML, or set a custom image source, can send it — which is effectively all of them.
That also means nothing runs on their side. There is no integration to authorise and no account to connect, so a countdown works the same in a one-off broadcast as it does inside an automation.
Paste the generated HTML into a Code block, or use the image URL in an image block with a link.
Use a campaign or flow template block that accepts HTML, then preview the desktop and mobile email.
Add the timer through an HTML block in the drag-and-drop editor and verify the final inbox render.
Use a custom HTML module or an image module pointed at the generated countdown image URL.
Place the email-safe HTML inside automation emails or one-off campaigns near the deadline CTA.
Use the timer in launches, creator broadcasts, and sequences where a real deadline changes the offer.
Add the image HTML to a dynamic template where the timer and destination link belong in the message.
Plan fit
Free already gives you a ticking GIF in the inbox and a matching page. Pro is for campaigns where the timer needs to stay on brand, run per subscriber, and be measured after launch.
Unlimited timers and views. Email output is an animated GIF on the basic design with CountdownShare branding, plus linked HTML. Preview the design and copy output before you send.
Pro adds the campaign controls most marketers need for revenue emails: every email design and theme, watermark removal, analytics, evergreen per-subscriber timers, branding and custom CSS, and unlimited active timers.
Campaign ideas
Use one fixed deadline in announcement, reminder, and final-call emails so every subscriber sees the same launch close time.
Put the timer close to the discount explanation and link it to a page that switches to standard pricing after the sale ends.
Count down to registration close, session start, or replay expiry. Include the timezone in plain text near the timer.
Use a personal window only when the discount or bonus really expires for that shopper.
Remind users when introductory pricing, bonus credits, or account access changes at the end of a trial.
Give subscribers a visual reminder for ticket close, application deadlines, store drops, or limited booking windows.
Automated personal windows need extra care. Start with the evergreen countdown timer guide when every subscriber receives a different deadline.
Pre-send checklist
A timer improves a campaign only when the rest of the message is clear. Treat it as a deadline display, not a substitute for offer copy, landing page consistency, or honest post-expiry behavior.
For developers
Everything above is a timer you create once and paste into a campaign. When the timers have to be created by your own system — one per order, per abandoned cart, or per subscriber — the Countdown Timer API returns a ready-to-paste email-safe animated image for every timer it creates, rendered at the moment the recipient opens the message.
For a deadline that differs per recipient — a 48-hour window starting when each person was emailed rather than when you pressed send — personalized timers fix a separate expiry per subscriber, computed on the server so the email, your app, and your billing all agree.
Troubleshooting
The full pre-send checklist is in email countdown timer best practices.
FAQ
An email countdown timer is an animated image placed in a marketing email that shows how much time is left before a deadline, such as a sale ending or a webinar starting. Because the image is generated when the email is opened, each subscriber sees the time remaining at that moment.
No. Email clients generally do not run normal website JavaScript or iframe countdowns. CountdownShare email output is an animated GIF, redrawn on every open, on every plan including Free.
Yes. Free includes an animated email countdown GIF on the basic design, with CountdownShare branding, linked to the matching countdown page. Basic removes the branding, and Pro adds every email design and theme.
You can copy linked email HTML or a direct countdown image URL. Use the HTML when your editor supports custom code, and use the image URL when your editor uses image blocks.
Image-based timers can display in Gmail and Outlook when remote images are loaded. Some Outlook versions may show only the first frame of an animated GIF, so always include text fallback copy and send a real test.
Apple Mail Privacy Protection can load remote images before the email is opened. Image caching can preserve that earlier countdown, so the GIF is not a guaranteed live clock. Include the exact deadline and timezone in text and link to the live website countdown.
Yes. A CountdownShare timer can support email output, a shareable countdown page, and a website embed. That is useful when a campaign sends subscribers from inbox to page.
Yes, on every plan. The GIF is generated when the email is opened, so a new deadline or design shows up in emails that are already in inboxes. Send yourself another test after the change and make sure the landing page still matches what the email promised.
The email image shows zero from then on, so late openers can see the offer has ended. The matching website embed and shareable page can instead show a message, redirect to another URL, or count up — so point the email link at a page that still makes sense after the deadline.
Yes, through the Countdown Timer API. Personalized timers fix a separate deadline for each subscriber ID and return an email GIF for each one. Evergreen timers on Pro give each website visitor their own window; a single shared email image cannot tell subscribers apart on its own.
Yes, through the Countdown Timer API. Recurring timers reset on a daily, weekly, monthly or custom schedule, and the email GIF rolls over to the next deadline automatically, which suits weekly deals or a daily order cutoff.
Use evergreen timing for real subscriber-specific windows, such as a trial ending, a personal bonus window, or an automation-triggered offer. Do not use it to make a public deadline look personal.
Final builder CTA
Set the deadline, copy the HTML, then test the exact timer your subscribers will see. Use the Mailchimp guide, Klaviyo guide, or HTML email timer guide if your editor needs platform-specific steps.