JWT Generator

⚠️ Security Notice: This tool runs entirely in your browser. No data, tokens, or secrets are sent to any server. Do NOT use real production secrets. Use this tool only for development and testing purposes.

Header

Valid

Payload

Valid

Secret Key

Generate a JWT token to see the result

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About JWT Generator

The JWT Generator lets you create JSON Web Tokens instantly for development, debugging, and testing authentication systems. Customize the header, payload, and secret key to generate a signed token using common algorithms such as HS256.

Why use this tool?

  • Quickly prototype and test JWT-based authentication flows
  • Inspect how claims are structured inside a token
  • Debug APIs that require Bearer tokens without spinning up a full auth server
  • Learn how JWT signing works in a safe, sandboxed environment
Important: This tool runs entirely in your browser. No tokens or secrets are ever sent to a server. Use it for development and testing only — never share production secret keys.