JWT Decoder Online Free – Fast & Secure

Decode and inspect JWT (JSON Web Token) tokens instantly. View header, payload, and signature information. All processing happens in your browser.

Decoded JWT:

Header:


                    

                    

                        
Payload:

                        

                    

                    

                        
Signature:

                        

                    

                    

                        
                    

                

            


            

                
How to Use JWT Decoder

                
    
                    
  1. Paste your JWT token into the input field
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  2. Click "Decode JWT" to decode the token
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  3. View the decoded header, payload, and signature
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  4. Copy the decoded JSON if needed
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About JWT Tokens

                

                    JWT (JSON Web Token) is a compact, URL-safe means of representing claims to be transferred between two parties. 
                    A JWT consists of three parts separated by dots (.), which are:
                

                
    
                    
  • Header: Contains metadata about the token (algorithm, type)
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  • Payload: Contains the claims (data) of the token
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  • Signature: Used to verify the token hasn't been tampered with
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                    Note: This tool only decodes JWT tokens. It does not verify the signature. 
                    For signature verification, you need the secret key used to sign the token.