Free · Encrypt text into a compact JWE

JWE Text Encryptor

Protect text with direct A256GCM encryption and a passphrase-derived local key.

Real jose checks
Private in your browser
Copy or download the result

Encrypt text

The input and result stay in this browser tab.

1Add the input

Text to encryptThe result is a five-part compact JWE.Passphrase

At least 16 characters. A SHA-256 key is derived locally.

2Check the result

Your checked result will appear hereTry the safe sample if you do not have test data.

Private by design. Keys, secrets, claims, and messages never leave this tab. Do not paste a production private key on a shared device.

Three simple steps

How to use it

Write the private text.
Use a long unique passphrase.
Encrypt and copy the five-part JWE.

Your keys stay on this device

jose and Web Crypto do the work inside this browser tab. Bookify does not upload or save keys, secrets, tokens, or messages. A valid signature proves the input matches the key, but you must still trust where that key came from.