ByteBuster Tools

Free CORS Header Generator

Free CORS header generator for Apache, Nginx, and Express. Configure allowed origins, methods, and credentials.

What does this tool do? Generate the correct CORS (Cross-Origin Resource Sharing) headers for your web server. CORS controls which websites can access your API — this tool builds the headers so you don't have to remember the syntax.
Generated locally — no server needed
View Technical Specifications (For Developers)
  • Headers: Generates Access-Control-Allow-Origin, Allow-Methods, Allow-Headers, Max-Age
  • Formats: Output for Apache (.htaccess), Nginx, and Express.js

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