JWT Decoder
Decode and inspect JWT tokens locally — view header, payload, and verify expiration
What is a JWT?
A JSON Web Token (JWT) is a compact, URL-safe token format used for securely transmitting information between parties. It consists of three parts: Header, Payload, and Signature, separated by dots.
⚠️ Security Note: This tool only decodes the token — it does not verify the signature. Never trust a JWT without verifying its signature on the server side.