JWT Parser

Decode JSON Web Tokens (JWT) instantly with our JWT Parser. This tool allows developers to inspect the contents of a token, including the header and payload claims, without sending the token to a server.

Note: This tool only decodes the token. It does not verify the signature. Do not rely on this for security validation.

What is a JWT?

A JSON Web Token (JWT) is an open standard (RFC 7519) that defines a compact and self-contained way for securely transmitting information between parties as a JSON object.

A JWT consists of three parts separated by dots (.):

• Header: Typically consists of two parts: the type of the token (JWT) and the signing algorithm being used (e.g., HMAC SHA256 or RSA).
• Payload: Contains the claims. Claims are statements about an entity (typically, the user) and additional data.
• Signature: Used to verify that the sender of the JWT is who it says it is and to ensure that the message wasn't changed along the way.

Privacy First

Your tokens are decoded locally in your browser using JavaScript. We never send your tokens to our servers, ensuring your sensitive data remains private.