JWT Inspector
Decode, verify, and debug JWT tokens.
Claim Validation
No valid claims found
Signature Verification
Header
Header content...
Payload
Payload content...
Decode and inspect JSON Web Tokens (JWT) directly in your browser. View header, payload, and signature. Check expiration times and algorithms.
How to Use This JWT Inspector & Decoder
- 1Paste your JWT string into the input box
- 2The tool automatically decodes the Header and Payload
- 3View the claims (user data, expiration, etc.) in a readable JSON format
- 4Check the 'Expiration' status (Valid or Expired)
- 5Verify the algorithm used (e.g., HS256, RS256)
Features
- ✓Decode JWT Header and Payload
- ✓Human-readable date parsing (exp, iat, nbf)
- ✓Validity check (Expired vs Active)
- ✓Syntax highlighting for JSON
- ✓Works offline (Private - tokens aren't sent to server)
- ✓Supports standard claims inspection
What is a JWT?
JSON Web Token (JWT) is an open standard (RFC 7519) that defines a compact and self-contained way for securely transmitting information between parties as a JSON object. It is commonly used for authentication and information exchange.