JWT Decoder

Decode JWT tokens and view payload data.

JWT Decoder

About JWT:

JSON Web Tokens (JWT) consist of three Base64URL-encoded parts separated by dots: header, payload, and signature. This tool decodes the header and payload for inspection. The signature is shown in hexadecimal format. Note: this tool does not verify the signature.

About JWT Decoder

Decode JWT (JSON Web Token) tokens and view their payload data. Paste a JWT token to see the header, payload, and signature. Useful for debugging and understanding JWT structure.

Key Features

  • Decode header, payload, signature
  • Formatted JSON output
  • Instant decoding

How to use JWT Decoder

  1. Paste your JWT token.
  2. See the decoded header and payload.
  3. View the signature.

Privacy & Security

All processing happens directly in your browser. Your data never leaves your device and is never uploaded to any server. We have no access to the files you process or the data you enter. This ensures complete privacy and security.

Frequently Asked Questions

What is a JWT?

JWT (JSON Web Token) is a compact, URL-safe token format for transmitting information between parties as a JSON object.

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