JWT inspector
Read JWT header / payload and numeric timestamps while keeping signature verification separate. Files and entered content are not sent to or stored on a server.
How to use
Read JWT header / payload and numeric timestamps while keeping signature verification separate.
Supported formats & limits
Values → Result
Processing stays in this browser. File formats and available memory may limit the result.
Signature, issuer and authenticity are not verified. A token that has not expired is not necessarily authentic.
JWT inspector User guide
Instructions
- Paste a three-part JWT. Use one of the displayed test tokens if you do not have one.
- Read header, payload and issued / valid-from / expiration dates.
- Copy the decoded JSON if needed.
Example
Input / settings
JWT with exp
Result / checks
Decoded claims and expiration time
Please note
- Signature, issuer and authenticity are not verified. A token that has not expired is not necessarily authentic.
- Encrypted five-part JWE payloads cannot be read here. Tokens stay in memory and are not saved.