JWT Encoder Decoder Online
Create and decode JSON Web Tokens (JWT) with ease. Perfect for debugging authentication tokens and API development.
Only used for HS256 algorithm. Other algorithms will show placeholder signature.
Generated JWT token will appear here...
About JWT Tokens
What is JWT?
JSON Web Token (JWT) is a compact, URL-safe means of representing claims between two parties. It consists of three parts: header, payload, and signature, separated by dots.
Common Claims
- •
iss- Issuer - •
sub- Subject - •
aud- Audience - •
exp- Expiration Time - •
iat- Issued At - •
nbf- Not Before
Security Notes
This tool generates tokens for development and testing purposes. Never use this tool with production secrets or sensitive information. Always use secure, randomly generated secrets in production.
Use Cases
- • Creating test tokens for development
- • Debugging authentication issues
- • Understanding token structure
- • API development and testing