JWT Decoder Online Free

JWT Decoder is an online tool that allows developers to decode JSON Web Tokens (JWT) instantly. JWTs are widely used for authentication and authorization in modern web applications and APIs.

A JWT consists of three parts:

header.payload.signature

This tool decodes the header and payload sections so you can inspect the token data in a readable format.

⚠️ This tool does not verify the token signature.

What is JWT?

JWT (JSON Web Token) is a compact token format used for secure information exchange.

For example:

xxxxx.yyyyy.zzzzz

Decoded payload might contain:

{
  "user_id": 123,
  "email": "user@example.com",
  "exp": 1710000000
}

How to use JWT Decoder?

• Paste your JWT token
• Click Decode
• View decoded header and payload

Features

• Decode JWT header
• Decode JWT payload
• JSON formatted output
• No server processing
• Secure browser-based decoding