JWT Inspector

Securely decode, inspect, and validate JSON Web Tokens offline.

Awaiting token...

HEADER: Algorithm & Token Type


                


                

                    

                        
PAYLOAD: Data

                        
                    

                    
                    

                    

                


                

                    

                        
VERIFY SIGNATURE

                    

                    

                        
HMACSHA256(

                        
  base64UrlEncode(header) + "." +

                        
  base64UrlEncode(payload),

                        

                              
                        

                        
)

                    

                    
Signature verification happens entirely in your browser.