JWT Decoder
Decode and verify JSON Web Tokens (JWT)
✨ 100% Free Tool - No sign-up required!
How to use: Paste JWT token → Click Decode → View header, payload & expiry status
Frequently Asked Questions
Is this JWT decoder free?
Yes! This JWT decoder is completely free with no sign-up required. Decode unlimited JWT tokens instantly in your browser.
How do I decode a JWT token?
Paste your JWT token into the input field and click "Decode JWT". The tool will display the header, payload, signature, and expiry status.
What is a JWT token?
JWT (JSON Web Token) is a compact, URL-safe token format used for authentication and information exchange. It consists of three parts: header, payload, and signature, separated by dots.
Does this tool verify JWT signatures?
No, this tool only decodes JWTs to view their contents. It does NOT verify signatures. For security reasons, signature verification should always be done on your backend server with the secret key.
Is it safe to decode JWTs here?
All decoding happens entirely in your browser - your tokens are never sent to any server. However, avoid pasting production tokens or sensitive data into any online tool as a security best practice.