JWT Decoder
Free online JWT decoder. Paste any JSON Web Token to instantly decode and inspect the header, payload, and claims. Shows expiry status and human-readable timestamps. No data sent to servers.
Paste a JWT token above to decode it
How to Use
Paste your JWT
Copy your JWT token and paste it into the input field.
Inspect the header
The header shows the algorithm (alg) and token type (typ).
Read the payload
The payload contains the claims — user data, permissions, and timestamps like iat (issued at) and exp (expiry).
Check expiry
The status badge instantly shows whether the token is still valid or has expired.