For a birthday
“Here is what I love about you, right now.”
A letter for a future day
Some things need time to bloom.
Write a message today. Choose when someone you love — or your future self — can open it.
No account needed. Write on your own, or with a little help from AI.
Drag or use arrow keys
01
Write something worth keeping
A few honest words. A memory, a wish, or something you have been meaning to say.
02
Choose the day it opens
Next year, a birthday, a milestone. Review the exact date before you seal it.
03
Send the private link
Share it with your person, or keep it for yourself. The message becomes readable on your chosen date.
Who came to mind?
An ordinary day. A future keepsake.
For your child
“One day, you will be old enough to understand this.”
For your future self
“I hope you remember how far you have come.”
A few things to know
Who can read my message?
Anyone with the private link can read it after the opening date. Stored messages are encrypted, but Capsula holds the key: this is not end-to-end encryption.
Will you send it for me?
You send the private link yourself. You can optionally confirm your own email for recovery and one opening reminder, or add a calendar reminder.
What does beta mean?
Capsula is still growing. A public fingerprint can help detect changes; during beta it uses Sepolia testnet. It does not guarantee permanent storage. Keep your link and export your letter after opening.