JWT Decoder — Decode and Inspect JSON Web Tokens

Decode JWT tokens to view the header, payload, and signature. Debug authentication tokens, inspect claims, and verify token structure.

✓ Free✓ No Signup✓ Browser-Based✓ Privacy First

Paste JWT Token

How to use JWT Decoder — Decode and Inspect JSON Web Tokens

Does this verify the JWT signature?

This tool decodes the payload without signature verification. For verification, use your backend.

Is it safe to paste my JWT?

The tool processes entirely in your browser. However, avoid pasting production tokens from sensitive systems.