JWT Generator

Sign and generate JSON Web Tokens locally using HMAC SHA256.

About JWT Generator

Generate and sign HMAC SHA256 JSON Web Tokens locally using the Web Crypto API.

Key Features

  • Signs JWTs with HS256/384/512 or RS256 using a custom header, payload, and secret/key.
  • Set standard claims (exp, iat, iss, aud) without hand-writing JSON.
  • Generates disposable test tokens without ever sending your signing secret anywhere.