Building a CLI Tool with Node.js

Command-line tools are incredibly useful for automating tasks and improving your workflow. In this post, I'll walk you through building a simple CLI tool.

Getting Started

First, set up a new Node.js project:

Creating the CLI Entry Point

Create a file named cli.js at the root:

Make it executable:

Parsing Arguments

Use a library like commander for robust argument parsing:

Publishing to npm

  1. Update package.json with the correct bin field
  2. Run npm publish

Conclusion

Building CLI tools is a great way to learn Node.js and create reusable utilities. Start simple and iterate!

Created:
3/25/2026
Last Updated:
5/11/2026