JWT Decoder JWT Analysis and Expiration Tool
Decode JWT in your browser and check the value of Header, Payload, and Time.
Enter JWT
Supports the 3 segments of theactact JWS format. Strings with "Bearer" are also pasted.
Result
Please check the issuer and the signed validation results separately before using the contents.
Header
Payload
Registered claims
| Values | Date and Time |
|---|
No registered registrations.
Signature
- signature
- -
- Length
- -
- Algorithm
- -
- Type
- -
Things to check
About this tool
Convert JWT Base64URL to JSON, and record the expiration date and start time of the device.
Features
- Compact JWS (Header.Payload.Signature)
- Bearer prefix, Base64URL padding omitted
- iss,sub,aud,exp,ff,iat,jti display
- Warning of expired, before use, future iat, alg: none
How to use
- Paste the JWT into the input field.
- Specify the number of seconds to allow the clock to run if necessary.
- Check the analysis results and warnings.
Important Restrictions
- The signature is not correct even if you can decode it. Do not use it for verification or authorization judgment.
- Do not share private key, password, and access s.
- Not compatible with JWE and signature verification for encrypted 5 segments.
Privacy: The input contents and analysis results are processed only in the browser, and the developer tool server is not sent or saved.