>_ JWT Decoder

Decode and inspect JSON Web Tokens. View the header, payload, and signature parts without server-side verification.

> Paste JWT Token:

> Header:

> Payload:

> Signature (base64url):

How to Use

Paste a JWT token into the input
Click "Decode JWT" to parse it
View the decoded header, payload, and signature

FAQ

Does this tool verify the signature?>

No. This tool only decodes the token. Signature verification requires the secret key or public key which should never be shared in a browser tool.

Is it safe to paste my JWT here?>

Yes. All processing is 100% client-side. No data is sent to any server. However, never share JWT tokens publicly as they may contain sensitive claims.