CORS Proxy

A simple and lightweight CORS proxy server that allows you to make cross-origin API requests safely from your frontend applications. This is especially useful when working with third-party APIs that don’t include the proper CORS headers.

Browsers enforce the Same-Origin Policy, which blocks frontend applications from making requests to APIs on different domains without the correct CORS headers.
This proxy acts as a middleware server — it forwards requests to the target API and returns the response with the appropriate CORS headers, allowing your frontend app to access the data safely.

Use Cases

• Accessing external APIs in development
• Testing APIs without CORS restrictions
• Preventing frontend code from exposing sensitive API keys

Setup

Clone the repository

git clone https://github.com/metatony/cors-proxy.git
cd cors-proxy

Install dependencies

npm install

Deploy on Render

• Push your project to GitHub
• Go to Render.com
• Create a free account and click new Web Service
• Connect your GitHub repo
• Click deploy web service
• When it finishes deploying, Render gives you a public URL like:

  https://your-cors-anywhere.onrender.com

• You can now make requests like:

https://your-cors-anywhere.onrender.com/https://Api_Link&apikey=YOUR_API_KEY

Alternative Platforms

You can also deploy to:

• Railway.app
• Vercel
• Glitch

All support Node.js apps with minimal setup.