JWT Decoder

Decode and inspect JSON Web Tokens (JWT)

The token will be decoded automatically as you type

Error

📋 Header 


        


        

            

                📦
                Payload
            

            
            

                

                    ⚠️ Token is expired
                    ✓ Token is valid
                    
                

            


            

        


        

            

                🔒
                Signature
            

            

                
            

            

                ⚠️ Note: Signature verification requires the secret key and is not performed in the browser for security reasons.
            

        

    


    

        
Features

        
    
            
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                ✓
                Decode JWT tokens instantly in your browser
            
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  • 
                ✓
                View header, payload, and signature separately
            
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  • 
                ✓
                Check token expiration status
            
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  • 
                ✓
                Human-readable timestamp formatting
            
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  • 
                ⚠️
                Client-side only - your tokens never leave your browser
            
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