Popular
Birthday
A message that unlocks on the day itself.
A private digital surprise that opens later
Send a surprise that opens at exactly the right moment.
Create a free ChronoBox with a message, photos or video, choose the opening date and send one private link. The recipient sees it only when the moment arrives.
FreeNo subscriptionPrivateOne share linkTimedOpens on your date
One idea, many moments
Do not just send a message. Give someone the moment of discovering it.
Start with a template or explore a guide for the occasion.
Romantic
Partner
Memories, photos and a timed surprise.
Memory
For your children
Capture something from today to reopen later.
Memory
Weddings
A memory box to open later.
Team
Farewells
Messages from the whole team in one box.
Game
Adventures
Keys, clues and a final reward.
More inspiration
Looking for a specific occasion?
Explore focused guides for time capsules, birthdays, couples, weddings, teams and online surprises.
Create a digital time capsule that opens laterWrite a future-self letter you will actually want to readCreate a timed digital gift for your partnerCreate an anniversary gift from your shared storyCreate a digital birthday gift that opens on the daySend a long-distance birthday surprise at the right momentCreate an 18th birthday gift from memories and messagesCreate a wedding time capsule for a six-month revealCreate a personal First Communion digital giftCollect coworker farewell messages in one private revealCreate a retirement gift from team memoriesBuild a romantic treasure hunt from shared memories
Explore all guidesChronoBoxes Tools
Useful ways to calculate the moments that matter.
Free date and time tools that run in your browser. Work out a future age, count down to a date or visualize a family milestoneβthen turn that date into a ChronoBox if you want.
Free to create
One ChronoBox. All core features included. β¬0.
No subscription, no checkout and no feature locked behind a payment.
Everything included
ChronoBoxes
Freeβ¬0to create
- Message and opening date
- Up to 6 photos
- 1 video up to 20 MB
- Secret question and optional location gate
- Private link + management and deletion for server-stored media
- Adventure, collaborative and Secret Santa modes
- Opening date up to 6 months for boxes with uploaded media
Optional support
Ko-fiHelp keep ChronoBoxes free.
If ChronoBoxes was useful, an optional contribution helps keep the service online and improving.
01
Hosting & storageKeep private media and the service available.
02
DevelopmentMaintain the product and fix issues quickly.
03
New featuresImprove the experience without adding a paywall.
Always optional.No subscription Β· No feature unlocks
Support ChronoBoxes on Ko-fi βChronoBoxes is currently free to use. Normal ChronoBoxes can be scheduled to open up to 6 months from creation. Server-stored media may remain available for up to 90 days after opening.
Create your surprise
Your ChronoBox starts here
Choose the experience type. The normal box includes photos and video for free.
Key adventure
Create a treasure with several digital keys that must be solved before the final message appears.
Three steps
Creating the surprise can take less time than choosing the gift.
1
Write
Message, date and an optional challenge.
2
Personalize
Add up to 6 photos and 1 video for free.
3
Share
Send the link. It opens when the configured moment arrives.