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JWT Decoder

Decode and inspect JSON Web Tokens instantly. See the header, payload claims, and expiration status. Everything runs in your browser.

0 characters
ALGORITHM
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TYPE
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ISSUED AT
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EXPIRES
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TIME UNTIL EXPIRY
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Header

JOSE HEADER

          
        


        
Payload

        

          
TOKEN CLAIMS

          

          
        


        
Signature

        

          
SIGNATURE

          

          
        

      


      

        
          
        
        
Paste a JWT token to decode and analyze

      


    

  






  

    

      
How to use

      
    
        
  • Paste a JWT token into the box and press Decode JWT.
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  • The header, payload, and signature are displayed in separate panels with syntax highlighting.
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  • A status badge shows whether the token is still valid or has expired based on the "exp" claim.
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  • Use Load Sample to see a real decoded token if you do not have one handy.
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What this is for

      
JSON Web Tokens (JWTs) are a compact, URL-safe format for transmitting claims between systems. They are widely used in OAuth flows, API authentication, and single sign-on. The payload is Base64-encoded, not encrypted, so the claims inside are readable without a secret. This tool decodes the header and payload so you can inspect algorithm, subject, issued-at time, expiration, and any custom claims without writing a line of code.

    

  






  

    
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Built by Albright Labs. We build the systems behind tools like this one, integrations, custom platforms, and automation. Have a project?

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