Write and encrypt
Enter your note and a strong password. Hush uses your browser’s Web Crypto API to encrypt the note on your device.
A little privacy goes a long way
Say it in plain sight.
Send a familiar emoji with a hidden encrypted note. Only someone with the emoji and your password can read it.
AES-256 encryption
0 / 10,000
Up to 10,000 characters for PNG. Emoji chat notes support up to 4 KB.
You’ll need to tell them separately
Use a strong password and share it through another channel.
Choose a containerPNG output
Paste one emoji or emoji sequence
Looks like one normal emoji. Copy it into your chat; the encrypted data travels as invisible text characters.
OPEN A MESSAGE
Have a secret emoji?
Paste the whole emoji message or upload its PNG, then enter the password shared with you.
Copy the complete message from the chat. It should look like just one emoji.
PRIVATE BY DESIGN
A private note, carried in plain sight.
Hush is a browser-based tool for encrypting a message and carrying it with an emoji or an image. The note is encrypted before you copy or download the container.
Choose a familiar carrier
Copy an emoji message with invisible encrypted characters, or download a PNG container. You can also use your own image as the visible carrier.
Share the password separately
The recipient pastes the complete emoji message or uploads the original PNG, then enters the password to decrypt the note in their browser.
No message uploads. No account required.
Hush is a static site. It does not send or store your message, password, or selected image on a server. The encrypted container is created locally in your browser.
Frequently asked questions
Will every chat app preserve the hidden emoji message?
Not always. Some apps remove invisible characters. Send a test first, or use the PNG and share it as an original file or document.
Does Hush change the pixels in my photo?
The supplied-image option keeps the visible image pixels and stores the encrypted payload in a PNG metadata chunk. Recompression, screenshots, and format conversion can remove that payload.
Can Hush recover a forgotten password?
No. The password is never sent to Hush, so it cannot be recovered. Share it with the recipient through a separate trusted channel.