Fill the doors, send one link, and each door opens on its day. No sign-up, no server, ready to open today.
You pick the dates, write or auto-fill the message behind each door, and send a single link. Whoever receives it opens it on their phone, sees the calendar in the theme you chose and can open only today's door and the earlier ones. The whole calendar travels inside the address, after the # sign, a part the browser never sends to a server, so there is no sign-up and no database. The tool opens with a calendar already filled in, with an activity, a kindness or a curiosity per day, and ships six suggestion packs: activities with kids, for a boyfriend or girlfriend, clean jokes, gratitude prompts, self-care and family challenges. It also works for a birthday, a trip or a New Year countdown, with 5 to 31 doors on any dates. The date lock is a game rule: do not use it to guard secrets.
Paste the code into your HTML and the tool shows up on your page, without J-Kit's navigation and ads. It still runs in the browser of whoever visits your site.
<iframe
src="https://jkit.tools/embed/en-US/advent-calendar-maker"
width="100%"
height="600"
style="border:0"
loading="lazy"
title="Online Advent Calendar Maker"
></iframe>
<p style="font-size:12px;margin:6px 0 0">Tool by <a href="https://jkit.tools/en/tools/advent-calendar-maker">J-Kit</a></p>Using it in a paper, class or post? Copy the link or a ready-made reference. The access date is today's.
<a href="https://jkit.tools/en/tools/advent-calendar-maker">Online Advent Calendar Maker</a>
Fill in the doors (or tap Fill empty doors to use the ready-made suggestions), copy the link or tap WhatsApp, and send it. Whoever opens the link sees the calendar on their own phone and can open each door only on its day. There is no sign-up, account or email.
Nothing leaves your browser. Your draft is kept only on this device, and the calendar travels inside the link, with no server.