Free CORS Configuration Generator
Generate CORS headers and configuration for your API or web server. Support for Nginx, Apache, Express.js, Fastify, Next.js, and Vercel.
Features
- Multiple Formats: Nginx, Apache, Express, Fastify, Next.js, Vercel
- Origin Control: Whitelist specific domains or allow all
- Methods: Configure allowed HTTP methods
- Headers: Set allowed and exposed headers
- Credentials: Enable cookie/auth support
- Preflight Caching: Configure max-age for OPTIONS requests
What is CORS?
Cross-Origin Resource Sharing is a security mechanism that allows web pages to make requests to a different domain. Proper CORS configuration is essential for APIs consumed by frontend applications.