Developer Tools
JWT Decoder - Inspector Pro
Decode and inspect JWTs locally. View header, payload, and signature with clear claim insights. No uploads.
All Developer Tools
All decoding happens locally in your browser. No data is uploaded.
JWT Input
Paste a JWT to decode header, payload, and signature.
Header
Algorithm, type, and token metadata.
| Claim | Value | Description |
|---|
Payload
Claims, timestamps, and token context.
| Claim | Value | Status |
|---|
Signature
Raw signature segment (Base64URL).
Signature verification requires the original secret or public key. This tool does not send or verify secrets.
How it works
- Paste a JWT in the input panel (or load the built-in example).
- The token is split into header, payload, and signature segments locally in your browser.
- Header and payload are decoded using your selected encoding and parsed as JSON.
- Use `JSON` or `Claims` view to inspect token metadata, claims, and timestamps.
- Copy any section as needed. Nothing is uploaded or sent to a server.