Mac users may occasionally come across a situation where a process is locking a port, preventing another app or process from using that port. If you come across such a situation, for example maybe you’re trying to use React.js and find out that something is already running on port 3000, you can easily track down what process(es) are using a port on the Mac by turning to the command line.

We’ll show you how to find and kill what process is locking a port on MacOS.

How to Find What Process is Locking a Port on Mac

The syntax to use would be the following,…