JWT Online Decoder/Validator is a professional JWT Token parsing tool that supports quick decoding and validation of JWT Tokens. The tool can parse the Header and Payload parts of the Token, displaying key information such as expiration time, issuer, audience, etc. It supports validating Token format and checking signature validity, helping developers quickly debug and troubleshoot JWT-related issues. No need to install third-party libraries or use command-line tools, open and use immediately, making it an essential tool for front-end and back-end development, API debugging, security auditing, and other scenarios.
What is JWT?
JWT (JSON Web Token) is an open standard (RFC 7519) for securely transmitting information between parties. JWT consists of three parts: Header, Payload, and Signature. The Header contains the token type and encryption algorithm used; the Payload contains claims, usually user information and other data; the Signature is used to verify the integrity and authenticity of the token.
When to use JWT Decoder?
- Debug API authentication issues, view user information and permissions in the token
- Verify if the token is expired, check issue time and expiration time
- Troubleshoot JWT-related errors, understand token structure and content
- Learn and understand how JWT works, view each component of the token
Features
- Quickly decode Header and Payload parts of JWT Token
- Display key token information (expiration time, issuer, audience, etc.)
- Validate token format and basic validity
- No installation required, use online immediately