Decode and inspect JSON Web Tokens (JWT) instantly. View header, payload, and signature data without sending your token to any server. Completely secure and private.
🔑 Launch JWT Decoder → ⚡ Instant Decoding • 🔒 100% Private • 🚀 Browser-BasedAutomatically split your token into its three core parts: Header, Payload, and Signature. View them in a clean, formatted JSON view.
Sensitive auth tokens should never leave your browser. All decoding logic runs locally, ensuring your credentials remain 100% private.
The tool automatically detects 'exp' and 'iat' claims, converting them into human-readable timestamps to help you debug session issues.
Easily copy specific payload data or the entire decoded JSON with one click. Perfect for documentation and debugging.
Paste your encoded JWT string (header.payload.signature) into the input field.
The tool instantly decodes the Base64Url segments and displays the JSON content.
Inspect user permissions, roles, and expiration dates in a human-readable format.
Validate the contents of Access Tokens or ID Tokens during the development of your authentication flows.
Verify that your backend is correctly issuing scopes and custom claims inside the token payload.
Quickly check when a token is set to expire to troubleshoot refresh token logic and session timeouts.
We value your security. Our JWT tool uses client-side Web APIs for decoding. No token data is logged, stored, or transmitted to any external server.
This tool is designed for decoding and inspection. Since signature verification requires your private key, we do not perform verification to maintain your security.
We support standard three-part JWTs (JWS). Encrypted tokens (JWE) cannot be decoded without a decryption key.
Yes! PixelOkay provides this and all other developer tools for free with no daily limits or registration required.