JWT Decoder

What is JWT?

JSON Web Token (JWT) is a compact, URL-safe means of representing claims between two parties. It consists of three parts: Header, Payload, and Signature. Learn more about JWT →

Decoding

Paste your JWT token in the input field and click "Decode JWT" to view its contents. The tool will automatically parse the header, payload, and signature.

Important Notes

• This tool only decodes JWT tokens - it does not verify signatures
• Never share JWT tokens containing sensitive information
• All processing happens in your browser - tokens are not sent to any server
• Expired tokens are highlighted with a warning message