Paste a JWT and decode the header and payload locally in your browser (no network calls). Decode JSON Web Tokens (JWT) instantly in your browser. Debug HS256 and RS256 tokens without sharing your keys or data with any server.
Header
# Decoded header will appear here
Payload
# Decoded payload will appear here
Signature (raw)
# Signature part will appear here
Claims Quick View
exp: —iat: —nbf: —iss: —aud: —sub: —
Note: This tool decodes JWT parts only. It does not verify the signature (no secret/public key here).
For verification, use your backend or a trusted library with the correct key.
