How to specify a port to run a create-react-app based project?
If you don’t want to set the environment variable, another option is to modify the scripts part of package.json from: “start”: “react-scripts start” to Linux (tested on Ubuntu 14.04/16.04) and MacOS (tested by @aswin-s on MacOS Sierra 10.12.4): “start”: “PORT=3006 react-scripts start” or (may be) more general solution by @IsaacPak “start”: “export PORT=3006 react-scripts start” … Read more