100% Free • Multiple Platforms

CORS Headers Generator
Secure Cross-Origin Requests

Generate CORS configuration for Node.js, Express, Nginx, and Apache. Configure allowed origins, methods, headers, and credentials.Enable secure cross-origin requests for your APIs.

Generate CORS ConfigSee Features
Node.js/Express
Nginx/Apache
Quick Templates
Security Best Practices

Quick Templates

Allowed Origins

HTTP Methods

Generated Configuration

const cors = require('cors');

const corsOptions = {
  origin: "*",
  methods: ["GET","POST","PUT","DELETE","OPTIONS"],
  allowedHeaders: ["Content-Type","Authorization"],
  exposedHeaders: [],
  credentials: false,
  maxAge: 86400,
  preflightContinue: false
};

app.use(cors(corsOptions));

Best Practices

  • Never use "*" for Access-Control-Allow-Origin with credentials in production
  • Specify exact origins instead of wildcards for better security
  • Only allow necessary HTTP methods to reduce attack surface
  • Set appropriate max-age to reduce preflight requests
  • Use HTTPS for all CORS-enabled endpoints
  • Validate and sanitize all cross-origin requests
  • Consider using a Content Security Policy alongside CORS
  • Test CORS configuration with different browsers
  • Monitor CORS errors in browser console during development
  • Document your CORS policy for API consumers

Powerful Features

Everything you need to configure CORS

Multiple Platforms

Generate CORS configuration for Node.js, Express middleware, Nginx, and Apache servers.

Quick Templates

Start with pre-built templates for development, production, and API configurations.

Security First

Follow CORS best practices to prevent unauthorized cross-origin access.

Deploy APIs with CORS

Use Server Compass to deploy REST APIs with automatic CORS configuration.

Try Server Compass