JWT Token Generator
Generate JSON Web Tokens (JWT) with custom claims and expiration. Create HS256 signed tokens for authentication testing and development.
Usually a user ID or unique identifier
Add custom claims as JSON object
Generated tokens use real HMAC-SHA256 signatures. Use a strong secret key in production. For testing only - do not use in production without proper security review.
Why Use JWT Generator?
JSON Web Tokens are widely used for authentication and information exchange. This tool helps developers create test tokens with custom claims, making it easier to develop and test JWT-based authentication systems.
Frequently Asked Questions
What is a JWT?
A JSON Web Token (JWT) is a compact, URL-safe means of representing claims between parties. It consists of three parts: header, payload, and signature, separated by dots.
Is it safe to use this for production tokens?
This tool is designed for development and testing. For production use, generate tokens on your secure backend server with proper key management and security measures.
What algorithms are supported?
Currently, HS256 (HMAC-SHA256) is fully supported. This is one of the most commonly used algorithms for JWT signing and is suitable for most use cases.