Your words are sealed locally
Text is encrypted in your browser before the sealed payload is submitted. The app does not need an account or a message database.
01 / Cryptography & time
TimeCapsuleMonad TestnetA message for a future moment.
TimeCapsule is a Web3 app for writing now and opening later. It encrypts your text in the browser, stores the sealed record on-chain, and uses a verifiable time signal to release the key at the moment you choose.
Current focus: Monad Testnet. Sealing a capsule requires a supported wallet and network fees.
Web3Luma / 01Time / Trust
A moment, sealed until it arrives.
- MessageEncrypted in your browser
- RecordStored on-chain
- ReleaseVerifiable time signal
Why TimeCapsule
Make a message worth waiting for.
A note to your future self. A thought for someone you love. A public mark in time. The meaning is yours; the release rules are built into the capsule.
A clock you cannot fast-forward
The release uses a verifiable drand time signal. Changing your computer's clock does not make the key available early.
More than one way back
An open capsule format and independent recovery tool provide a path to retrieve a capsule beyond the website, subject to network and data availability.
The experience
Write. Seal. Return.
The app makes the emotional act simple while keeping the cryptographic steps visible.
- 01 / WRITE
Choose the message
Write a text capsule, choose a future release time, and select Public or Private mode.
- 02 / SEAL
Confirm with your wallet
Your browser encrypts the text. You sign a transaction to record the sealed payload on the selected chain.
- 03 / OPEN
Come back when it's time
Once the time signal is available, the app verifies it before opening. Private capsules also require your passphrase.
The important details
Know what stays private.
TimeCapsule offers distinct Public and Private modes. Their visibility and recovery requirements matter before you seal anything.
- Who can read a Public capsule?
- Anyone can read its body after the release time. Its public title is visible on-chain as soon as the transaction confirms, so do not place secrets in Public mode.
- What does Private mode add?
- Private mode requires your passphrase even after the time signal arrives. If you lose the passphrase, the app cannot recover the message for you.
- Is future access guaranteed forever?
- No. Recovery depends on accessible chain data, RPC service, the drand network, and compatible recovery software.