JWT Structure

Explanation of Header, Payload, and Signature.

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JWT Structure

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JSON Web Token Guide

How It Works

  1. Search part (payload)
  2. View description
  3. Understand claims

Use Cases

  • Auth implementation
  • Security debugging
  • API standards

Frequently Asked Questions

What is "sub"?

The "sub" (subject) claim identifies the principal that is the subject of the JWT.