JWT Decoder

Decode and inspect the header and payload of JSON Web Tokens. No verification — just decode and inspect. Your JWT never leaves your browser.

Header 

            

            

                

                    Payload
                    
                

                

            

        

        

        

            Signature:  (not verified)
        

    


    

        

            
How to Use

            
    
                
  1. Paste your JWT token in the input above.
    2. 
                
  2. The header and payload are decoded automatically.
    3. 
                
  3. Copy any part for further use.
    4. 
            

            
What is Decoded

            
    
                
  • Header — algorithm (alg) and token type (typ)
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  • Payload — claims like sub, iat, exp, and custom data
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  • Signature — shown but not verified (this is a decode tool, not a validate tool)
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