Decode and inspect JWTs client-side, with optional HS256 signature verification.
JWT Decoder
Decode JWT header and payload client-side without sending tokens anywhere.
Client-side only. Your data stays in your browser on this page.
Paste a JWT below to decode, validate, and verify.
Encoded Value
JSON Web Token (JWT)
Paste a token to decode.
Decoded Header
Decoded Payload
JWT Signature Verification (Optional)
Enter the secret used to sign the JWT (HS256).
Not verified yet.