encode · send · disappear
Start encodingfree to use · no account needed
How it works
01
Write
Type your message. Pick a cipher. Choose a secret key only you and your recipient know.
Type your message. Pick a cipher. Choose a secret key only you and your recipient know.
02
Encode
Your message becomes unreadable gibberish — numbers, symbols, scrambled letters. Send it anywhere.
Your message becomes unreadable gibberish — numbers, symbols, scrambled letters. Send it anywhere.
03
Decode
The recipient opens Nullcode, pastes the message, enters the same key. Only then does it make sense.
The recipient opens Nullcode, pastes the message, enters the same key. Only then does it make sense.