Decode Jwt Token

What is a Decode JWT Token Tool?

The Decode JWT Token Tool is a free, browser-based utility that allows you to decode and inspect the contents of a JWT (JSON Web Token) instantly—without requiring a secret key. JWTs are widely used for authentication, authorization, and secure information exchange in web applications and APIs.
This tool reveals the header, payload, and signature components of any JWT, making it ideal for developers, security professionals, and API testers.

How to Use the Decode JWT Token Tool

Decoding a token is fast and straightforward:

• Paste your JWT token into the input box.
• Click the ‘Decode’ button.
• Instantly view the decoded Header and Payload as human-readable JSON.
• Examine standard claims like iss, exp, sub, aud, and any custom claims.
• Safely view token data—no secret key or authentication is needed.

This tool is read-only and does not validate or verify the token signature.

💡 Why Use a JWT Decoder?

• Break Down Token Structure

  Instantly split your JWT into Header, Payload, and Signature for easy analysis.

• Debug Authentication & Authorization Issues

  Quickly check if a token is malformed, expired, or missing required claims during API development.

• Safe, Secure, and Offline-Friendly

  No data is sent anywhere—everything runs in your browser for maximum privacy.

• Ideal for Developers & Security Teams

  Useful for inspecting tokens in OAuth flows, SSO integrations, and identity verification systems.

• Supports Standard & Custom Claims

  View and understand JWT content with both predefined and user-defined fields.

🚀 Try It Now!

Paste your JWT token and click ‘Decode’ to view the contents instantly. Use our Decode JWT Token Tool to inspect, debug, and better understand your authentication tokens—no secrets needed!