Interactive Advent Calendar — 24 Days Christmas Countdown

About this product

An interactive digital advent calendar for your family or classroom. Open one door each day in December to reveal customizable messages, activities, jokes, or surprise rewards. Works offline in any browser.

What you get

• 24 ready-made holiday messages — fun family activities, prompts and traditions
• Real date-locking — door 12 only opens on December 12th, keeping the surprise genuine
• 👁 Preview Mode — unlock every door instantly to set up and test any time of year
• ✏️ Edit Mode — click any door to rewrite its message, saves automatically
• Live countdown to Christmas Day, recalculated every time you open it
• 4 festive color variants + rotating icons across the 24-door grid
• Falling snow animation for that cozy, magical feel
• Beautiful light mode (+ dark mode toggle)
• Backup/Restore so your custom messages move with you to any device
• Works in any modern browser — no installation, no account
• 100% private — nothing you write ever leaves your device

What you can import

• AdventCalendar.html — main app (open in any browser)
• Instructions.html — full user guide

What you can import

• Genuine date-locking means the surprise stays real for kids, a classroom or a partner
• Edit any message in seconds — no new file, no re-downloading, no design software
• Works equally well for families, classrooms, long-distance couples or friend groups
• Falling snow and a rotating 4-color door palette make it feel like a real holiday card
• Resets automatically every year — the countdown always targets the next December 25th

Questions