Free Developer Tool
JWT Debugger
Decode, inspect, and validate JSON Web Tokens. All processing happens in your browser — your tokens never leave your machine.
Paste a JWT to decode
The token will be decoded and inspected instantly.
Features
- Decode JWT header & payload
- Syntax highlighting for JSON
- Validate expiration (exp)
- Display issued at (iat) & not before (nbf)
- Copy individual token parts
- 100% client-side — secure & private