Letter to your child

Write a letter to your child that captures who they are right now

Instead of writing only advice, capture the child’s current world: expressions, habits, favourite things, family routines and small details that are easy to forget. Those observations give the letter its future value.

No account · Free to use · Photos + video included · Normal boxes open within 6 months

Why this format works

ChronoBoxes ChronoBoxes is a short-horizon service with a maximum six-month opening date. It is suitable for the end of a school term, a birthday within the next months or another near-term milestone—not for storing media until adulthood.

ChronoBoxes separates the moment of creation from the moment of discovery. The recipient gets a private link, sees the waiting experience and opens the content when the configured date and any optional gate conditions are met.

Ideas you can use

  • Describe a recent conversation word for word as best you can.
  • Write what currently makes them laugh.
  • Include one thing you admire and one thing you hope they keep practising.
  • Add a photo of an ordinary day.
  • Open it at a milestone within six months.

How to create this ChronoBox

  1. Write the core message first. Decide what the recipient should remember, discover or feel before adding effects.
  2. Choose a date that has context. Timing should connect to the birthday, anniversary, project, trip or milestone.
  3. Add gates only when they improve the experience. A secret question or location is optional.
  4. Add media only if it adds meaning. You can include up to 6 photos and 1 video for free; boxes with uploaded media can open up to 6 months after creation.
  5. Share the private link. Treat it as private information and send it only to the intended recipient or participants.
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A concrete example

“You are obsessed with building the same tower every evening and getting annoyed when anyone helps. I wonder what the six-month version of you will be obsessed with.”

Use the example as a structure, not as copy. The more specific the message is to the people and moment involved, the more valuable it becomes when it opens.

What is included for free?

ChronoBoxes has no paid tier. Text-only boxes keep encrypted content inside the private link. If you add photos or video, those files use temporary server storage so they can be revealed later.

Text-only · FreeMessage, opening date and optional gates. Encrypted content travels in the private link.
Photos + video · FreeUp to 6 photos + 1 video. No checkout. Normal ChronoBoxes can open up to 6 months from creation.

What to avoid

  • Do not use ChronoBoxes as your only long-term archive; keep independent backups of important media.
  • Do not publish private capsule links on public pages or social feeds if the content is personal.
  • Do not make questions or location gates so difficult that they block the intended recipient.

Frequently asked questions

Can I schedule ChronoBoxes for many years?

No. ChronoBoxes is capped at six months from creation.

What if I want a long-term letter?

Keep a durable personal copy for long-term preservation. Free text can use a future date because the encrypted content travels in the link.

Can I include video?

Yes for free, subject to the video format and size limits shown during creation.

🎁

Make the content specific, then let the timing do the rest

ChronoBoxes is free. Add photos or video only when they genuinely improve the reveal.

Create ChronoBox