JWT Decoder
Decode JSON Web Tokens (JWT) safely in your browser without sending to a server.
Privacy Notice: Decoding a JWT does not verify its cryptographic signature. Processing happens entirely in your browser; tokens are never sent to a server.
Decode JSON Web Tokens (JWT) safely. Because this tool runs entirely client-side, your sensitive tokens are never sent to a server. Note that decoding a token does not verify its signature.
How to Use
- Paste your JWT into the input field.
- View the decoded Header and Payload as formatted JSON.
- Check the human-readable expiration time.
Formula
Base64 decodes the header and payload segments of the JWT.
Examples
Reading Claims
Easily inspect 'sub', 'iat', and 'exp' claims inside the token payload.