Learn JWT
Master JSON Web Tokens with comprehensive guides and tutorials
Getting Started with JWT
JSON Web Tokens (JWT) are a compact, URL-safe means of representing claims to be transferred between two parties. Learn the fundamentals and best practices.
JWT Basics
Understanding the fundamentals
Implementation Guides
Step-by-step tutorials for different platforms
Node.js Implementation
Implement JWT authentication in Express.js applications
$ npm install jsonwebtoken
Python Implementation
Using PyJWT for secure token handling
$ pip install pyjwt
Go Implementation
JWT authentication with golang-jwt
$ go get github.com/golang-jwt/jwt/v5
Security Best Practices
Keep your JWT implementation secure
Algorithm Selection
Choose the right signing algorithm (RS256, ES256, EdDSA)
Token Storage
Secure storage strategies for different environments
Expiration & Refresh
Implementing token rotation and refresh strategies
Common Vulnerabilities
Avoid algorithm confusion, weak secrets, and JWT bombs
Additional Resources
Try It Yourself
Ready to start working with JWTs? Use our interactive debugger to decode, verify, and create tokens.
Open Debugger