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JWT Decoder & Inspector
Decode and inspect JWT tokens online. View header, payload, and signature of any JSON Web Token instantly.
JWT
Paste a JWT token to decode its contents
ℹAbout JWT Decoder
Our JWT Decoder instantly decodes JSON Web Tokens and displays the header, payload, and signature in a readable format. Debug authentication issues, inspect token expiry, and understand JWT structure without writing any code.
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?Frequently Asked Questions
What is a JWT?
JWT (JSON Web Token) is a compact, URL-safe token format used for authentication and information exchange between parties.
Can I verify JWT signatures here?
This tool decodes the payload for inspection purposes. Signature verification requires the secret key and is best done server-side.
Is it safe to paste my JWT here?
Decoding happens entirely in your browser. However, avoid pasting production tokens with sensitive data into any online tool.