Time-lock any file

Developers & Agents: delayed data access, commit/reveal schemes.
Everyone: embargoes, puzzle drops, send messages to the future.

Encrypt data that can only be decrypted after a future time

When should it unlock?

Choose a file to encrypt

Drop a file here or click to select

Everything happens in your browser. Your file never leaves your device. No one can decrypt it early, not even us.

Useful for

Pick a future time. timelock.sh has already pre-published a public lock (aka public key) for every minute for the next month.
Drop in a file. Your browser encrypts it locally using that lock and the file never leaves your device.
When the minute arrives, the matching decryption key is released to a public API.
Anyone with the encrypted file can decrypt it. The file embeds its own unlock time, so nothing else needs to be shared.

Built for the browser and terminal: only curl + openssl needed. CLI docs →