JWE Encrypt / Decrypt

Encrypt and decrypt JSON Web Encryption (JWE) payloads using WebCrypto via jose.

Privacy: 100% Client-Side. Your data never leaves this browser tab. Processing uses Web APIs and client-side libraries only.

Compact JWE encrypt/decrypt with jose + WebCrypto. Keys stay in this browser.

Keys

Encrypt / Decrypt

What is JWE?

JSON Web Encryption (JWE) wraps plaintext in an encrypted envelope so tokens or payloads can travel through untrusted intermediaries without exposing claims.

This workbench uses WebCrypto via jose to encrypt and decrypt JWE strings locally for protocol debugging.

How to use this tool

  1. Paste a JWE string to decrypt, or enter plaintext and a key/algorithm to encrypt.
  2. Choose the serialization and content encryption settings that match your issuer or library.
  3. Copy the resulting ciphertext or plaintext for local testing — keys stay in the browser.

Frequently asked questions

Are encryption keys uploaded?

No. JWE operations run client-side with WebCrypto/jose and are not sent to Utilxo servers.