How to fix the ERR_CONNECTION_REFUSED error when connecting to a local development server?

The ERR_CONNECTION_REFUSED error often occurs for web developers when trying to open a local project in the browser. This means that the remote or local node is rejecting the incoming connection and the port is simply closed.

First of all, make sure that your local server is up and running in the terminal. Often developers forget to execute the startup command or the process unexpectedly crashed with an error.

Check that the specified port and protocol are correct. Make sure you use http or https depending on your application's configuration.

If the server is running but the problem persists, the port might be occupied by another process. Terminate hanging processes via the Task Manager or command line to free up the required port.

It is also worth checking your project's configuration file. Sometimes the server binds only to the local address and does not accept external requests if required for your development environment.