JWT Decoder
Decode JWT tokens to view header, payload, and signature. No verification.
Your text stays in your browser. We don't upload or store your data.
How to Use
- 1Paste JWT token.
- 2View decoded header, payload, and signature.
- 3Copy the result.
What is JWT Decoder?
JWT Decoder decodes JSON Web Tokens to display the header, payload, and signature. Note: this tool does NOT verify signatures.
Key Features
- Decode JWT header
- Decode JWT payload
- Display signature
- Formatted JSON output
- 100% client-side
FAQ
Does this verify the JWT signature?
No. This tool only decodes the token. Signature verification requires the secret key and is not performed here.
Is it safe to paste JWT tokens here?
Yes, all processing happens in your browser. Tokens are never sent to any server.