Secret Cipher Maker
Transform your messages into emoji ciphers using a secret passphrase. Have fun exchanging secret messages with friends!
How to Use It
Secret Chats with Friends
Chat in code on messaging apps. Even if someone peeks at your screen, all they'll see is a bunch of emoji!
Secret Love Letters
Send a special message only your crush can read. Only someone who knows the passphrase can decode your feelings.
Stand Out on Social Media
Post emoji ciphers on X or Instagram Stories. Only your friend group knows the passphrase to decode the secret message!
Treasure Hunt Clues
Write encrypted clues on paper and hide them around the house or school. Only those who know the passphrase can read the next hint.
🛡️ How Does It Work?
This tool uses AES-GCM, a real encryption standard used by banks and governments. Your passphrase is turned into a super-complex key (via PBKDF2), which scrambles your message completely. Only someone with the same passphrase can unscramble it.
🔐 Privacy
All encryption and decryption happens entirely in your browser. Your messages and passphrases are never sent over the internet. Even the developer of this page cannot see your messages.