JWT Decoder & Validator
JWT Decoder & Validator
A must-have tool for any developer working with JSON Web Tokens (JWT). Our JWT Decoder & Validator allows you to quickly paste a token to see its decoded header and payload. It also enables you to validate the token's signature against a secret or a public key (for RS256, etc.). The tool automatically checks for common issues like an expired signature and highlights the claims within the payload, making debugging and verification simple and efficient.
Tool Interface
Tool UI coming soon...
The interactive UI for this tool is currently under development. Please check back later!
Frequently Asked Questions
FAQs are currently unavailable. Please check back later.
Features
- Decodes JWT header and payload
- Validates the token signature with a secret or key
- Checks for token expiration
- Pretty-prints JSON payload for readability
How It Works
- 1Paste your JWT into the input field.
- 2The header and payload are automatically decoded and displayed.
- 3To validate the signature, provide your algorithm and secret/key.
- 4The result of the validation is shown instantly.
Common Use Cases
- Backend developers debugging authentication flows.
- Frontend developers inspecting the content of a JWT.
- Security engineers verifying token integrity.