JWT Decoder

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Data & Encoding | Updated August 22, 2026

Decode JSON Web Tokens instantly to view header and payload data for debugging, authentication, and API development.

Decode Decode Clear Clear

Header:


											
Payload:

											

										

									

								
 		
								

									

										The JWT Decoder allows you to quickly decode JSON Web Tokens (JWT) and inspect their contents. A JWT is a compact, 
										URL-safe token commonly used for authentication and secure data exchange between systems.
									


									

										A JWT consists of three parts: the header, payload, and signature. This tool decodes the header and payload to 
										display readable JSON data, helping developers understand token structure and debug authentication issues.
									


									
Note that decoding a JWT does not verify its authenticity. Always validate tokens on the server when security is critical.