JWT Decoder

Paste your JWT token to decode and view the header, payload, and signature with VS Code-like syntax highlighting.

JWT Token

What is a JWT token?

JWT (JSON Web Token) is a standard for creating access tokens that assert some number of claims. It consists of three parts separated by dots: header, payload, and signature. Each part is Base64-encoded JSON data.

How does this JWT decoder work?

Paste your JWT token in the input field. The decoder will parse the token, extract and decode the header, payload, and signature, then display them with syntax highlighting for easier readability.

Is this JWT decoder free and secure?

Yes. This tool is completely free to use. Your JWT token is decoded only in your browser and is never sent to any server, ensuring your data remains private.