JWT Decoder & Encoder
Decode, encode, and verify JWT tokens. Analyze payload claims and validate signatures — all processing happens in your browser.
All keys and tokens are processed entirely in your browser. Nothing is sent to any server.
Paste a token or load the sample to inspect its structure.
Decoded
H
Header
Metadata such as the algorithm and token type.
P
Payload
Edit claims and timestamp values.
S
Signature
Enter a key to verify the signature or create a new token.
Algorithm
HMACHS256
Not Verified