JSON Web Tokens (JWTs) are an open, industry standard RFC 7519 method for representing claims securely between two parties. Each JWT contains encoded JSON objects, including a set of claims. JWTs are signed using a cryptographic algorithm to ensure that the claims cannot be altered after the token is issued.

Our online JWT Parser tool allows you to easily decode the contents of a JWT, revealing the header, payload, and signature. It's an invaluable resource for developers working with JWT-based authentication and authorization systems.

• Easy to Use: Simply paste your JWT into the input field and get instant results.
• Instant Decoding: Quickly decodes the JWT header and payload to reveal their contents.
• Signature Verification: (Coming Soon) Verify the integrity of your JWT against a provided secret or public key.
• Syntax Highlighting: Presents the decoded JSON in a readable and formatted manner.
• Completely Online: No software installation required. Access our tool from any device with an internet connection.

1. Paste Your JWT: Copy the JWT string you want to inspect and paste it into the designated input area.
2. View Decoded Information: The tool will instantly decode the JWT, displaying the header and payload in a structured format.
3. (Optional) Verify Signature: If you have the secret key or public key, you can use our verification feature (coming soon) to ensure the JWT's authenticity.

• Debugging: Easily inspect the contents of a JWT to troubleshoot authentication and authorization issues.
• Understanding Claims: Understand the data (claims) being transmitted within the JWT.
• Security Analysis: Examine the header and payload for any potential security concerns.
• Learning and Development: A valuable tool for developers learning about JWTs and how they work.