Features:

• Decode JWT header, payload, and signature
• Inspect token claims (iss, sub, aud, exp, iat, etc.)
• Check token expiration status
• Syntax highlighting for JSON content
• Copy individual sections to clipboard
• Privacy-first: All processing happens in your browser

What is JWT?

JWT (JSON Web Token) is a compact, URL-safe means of representing claims to be transferred between two parties. The token is digitally signed and consists of three parts: Header, Payload, and Signature.

⚠️ Warning: Never paste sensitive or production JWT tokens into online tools. This tool runs entirely in your browser, but always be cautious with sensitive data.