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timedrop.it
Encrypted letters to the future

Write a letter to your future self.
We deliver it on the day you choose.

Attach photos or a voice note, pick any date from tomorrow to ten years out, and it stays encrypted and locked until then. A free account includes two letters a year.

Blank page? Start from a moment, we’ll fill the first line and the date
2 free letters a year

Write your letter.

CAPSULE · DRAFT

Write as much as you like first. Sending it takes a free account (one tap with Apple or Google), and your draft stays saved on this device.

Letter to the future
AES-256 · LOCKED
2Schedule
Optional attachments
[ HOW IT WORKS ]

How do you send a letter to the future?

01

Write it

Type a letter, attach photos or record a voice note. Whatever you want to send forward.

02

Set the unlock date

Pick any date from tomorrow to ten years out. It stays sealed and locked until then.

03

It's delivered on the day

On the unlock date, the link arrives by email, exactly when you meant it to.

[ WHAT PEOPLE SEND ]

What do people write to the future?

The six most common reasons, each with a guide on what to say.

[ SECURITY ]

Can anyone else read your letter?

AES-256 · IN YOUR BROWSER

Encrypted before upload

Your letter, photos and voice note are encrypted on your device before they reach us. The database stores ciphertext.

SEALED KEY

The key is kept apart

Each capsule’s key is sealed with a server key that never sits in the database. A copy of the database alone opens nothing.

TIME-LOCK

Locked until the unlock date

The open link receives the key only after the date you set has passed. Before that it shows a countdown, to you as well.

[ COMMON QUESTIONS ]

What people ask before they write

How do I send a letter to my future self?

Write your letter on timedrop.it, pick the unlock date and enter your own email as the recipient, then seal it. On that date we email you a private link that opens the letter. Sending takes a free account, which includes two letters a year.

Can timedrop.it read my letter?

We never read letters, and the system is built so that reading one takes more than our database. Your letter, photos and voice note are encrypted in your browser with AES-256 before upload, and each capsule’s key is sealed with a server key kept outside the database. timedrop.it is not zero-knowledge: our server can unseal a key, which it does to deliver on the date and when a recipient asks for an email copy.

What happens on the unlock date?

We email the recipient a private link within minutes of the unlock time. Opening it decrypts the letter in their browser. If the link is not opened, we send a reminder after 24 hours and another after 72 hours.

Can I open it early or change the date?

No. Once a capsule is sealed its date is fixed, and the open link shows a countdown until then. The fixed date is what makes it a time capsule, so choose it before you seal.

How far ahead can I schedule a letter?

From tomorrow up to ten years. Choose a preset such as one year or five years, or set an exact date, time and timezone.

See the full FAQ →

What would you tell the person you’ll become?

Write your first letter, free →