Developer tools
Local JWT decoder
Read a compact JWT header and payload locally without verifying claims.
Processed locally
Decoding does NOT verify the signature, identity, expiry or any claims. Do not use this output as proof of authentication. Maximum 32,768 characters.
Your answer will appear here.
Help and method
Requires three Base64URL segments, valid UTF-8 and JSON objects for header and payload. Padding and noncanonical Base64URL are rejected. The signature is displayed without cryptographic verification.
Methods and reliabilityWorked example
An example you can try or adapt to your own values.
- Input
- eyJhbGciOiJub25lIn0.eyJzdWIiOiIxMjMifQ.
Result
Not verified · {"alg":"none"} · {"sub":"123"}