Local-CORS is a free Chrome extension developed by Of cors that allows CORS (Cross-Origin Resource Sharing) requests from your localhost to any API by setting the 'Access-Control-Allow-Origin: *' header. This extension is specifically designed for web developers who need to test UI changes from their local machines against a remote API that doesn't allow localhost CORS requests.

With Local-CORS, developers can easily overcome the CORS restrictions and ensure smooth testing of their UI changes. By enabling this extension, developers can avoid the hassle of setting up a local server or dealing with complex proxy configurations. The 'Access-Control-Allow-Origin: *' header is added to the requests, granting permission for the localhost to access the API.

It is important for developers to have a good understanding of how CORS works before enabling this extension. They should also follow best practices by locking down the intercepted URL pattern to only the API they are testing, ensuring security and preventing any unintended access.

Overall, Local-CORS is a valuable tool for web developers who frequently need to test UI changes against remote APIs, providing a simple and convenient solution for overcoming CORS restrictions.