PRIVATE BY ARCHITECTURE 01

Share it once.

A private note should not become permanent history. Encrypt it here, send one link, and let the message disappear after it is read.

01 / Compose a secret

Put the message in a secure envelope.

Encryption starts in this browser. OTI receives ciphertext, never the readable note.

Your message Private by default

OR ATTACH A FILE

Share a text file Validated locally

The raw file never reaches the server. Only its encrypted envelope is stored.

Expires after TTL

Optional password Extra layer

THE OTI PROMISE

Your browser does the encryption before OTI receives anything. We only hold an unreadable payload until its timer runs out.

01 Encrypt locallyYour device creates the keys.

02 Share the link The private key stays in its fragment.

03 Burn on read The ciphertext disappears after viewing.

Open source, small footprint. Built for the moments when a normal chat is too permanent.