CORS Header Generator
Generate Cross-Origin Resource Sharing (CORS) response headers from configuration options including origins, methods, and credentials.
How to Use CORS Header Generator
The CORS Header Generator helps you create proper Cross-Origin Resource Sharing headers for your web server or API. Configure allowed origins, HTTP methods, request headers, exposed headers, max age, and credentials support. The tool generates the complete set of Access-Control headers ready to copy into your server configuration. Essential for backend developers setting up APIs consumed by frontend applications on different domains. Supports wildcard origins, specific domain lists, and preflight request configuration.
Step-by-Step Instructions
- Set the allowed origin (wildcard or specific domain)
- Select which HTTP methods to allow
- Configure allowed and exposed headers
- Set max age and credentials, then generate headers
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