JWT Decoder Online
High-security JWT decoder online. Inspect JSON Web Tokens instantly with 100% client-side decoding.
JSON Web Token
Paste your encoded token here
JWT Privacy & Security
Our online JWT decoder runs entirely in your browser. Tokens are base64-encoded, not encrypted. Never store sensitive data like passwords or secrets in a JWT payload.
How to Use JWT Decoder
- 1Copy your JSON Web Token (JWT) from your application or environment.
- 2Paste the encoded string into the text area above.
- 3Click 'Decode JWT' to extract the header and payload data.
- 4Review the decoded JSON for claims, timestamps, and user data.
- 5Use the copy buttons to save the decoded components to your clipboard.
Key Features
- 100% Client-Side: Your tokens never leave your browser for maximum security.
- Real-time Analysis: Instantly identify token algorithms and data types.
- Claim Detection: Easily read standard claims like sub, iat, and exp.
- Zero Logging: No tokens are ever stored or sent to our servers.
- Pro UI: Organized view of Header and Payload for better readability.