JWT Decoder
Decode and inspect a JSON Web Token: header, payload and signature.
Note: This tool only decodes the JWT, it does not verify the signature. Do not enter JWTs with sensitive data.
About JWT Decoder
Ever found yourself staring at a string of characters and wondering what secrets it holds? You've likely encountered a JSON Web Token (JWT), a common standard for securely transmitting information between parties. But what exactly is inside that token? Our free online JWT Decoder is here to demystify it for you. Simply paste your JWT into our tool, and instantly gain clear visibility into its header, payload, and signature. Understanding these components is crucial for developers working with APIs, authentication systems, or anyone needing to verify the integrity of a JWT.
This powerful yet easy-to-use utility empowers you to:
- Inspect the token's header to understand its encoding and algorithm.
- Examine the payload to see the claims or data being transmitted.
- Verify the signature to ensure the token hasn't been tampered with.
About this tool
Decode and inspect a JSON Web Token: header, payload and signature.
- 100% free
- No sign-up needed
- Runs in browser, no data stored
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