Creating NPM Package

Updated for 2026

Do you want to publish high-quality JavaScript packages to NPM without struggling with complicated setups or unreliable release scripts?

Creating NPM Package is a hands-on, step-by-step guide that walks you through every stage of building a modern JavaScript library, from setting up your project to automating production releases.

This new edition includes the latest best practices, such as using semantic-release for automated versioning and release notes, setting up secure NPM Trusted Publishing, and a new chapter on making your JavaScript codebase more modular and scalable.

If you've ever asked yourself questions like these:

• How should I structure my JavaScript library?
• How do I automate versioning and changelogs without manual work?
• How do I securely publish using modern CI workflows?
• How do I scale my library beyond a single file?

• Configure a clean, scalable JavaScript project
• Define correct entry points
• Modularize your JavaScript codebase for maintainability
• Test your package before and after publishing
• Automate version management and release notes using semantic-release
• Implement NPM Trusted Publishing for secure, tokenless releases
• Create professional README and LICENSE files
• Publish and validate your package in both local and production environments

• Clear, simplified explanations without unnecessary theory
• Real-world workflows used by professional library authors
• Automation-first approach to eliminate manual release headaches
• It focuses on the steps for building and publishing libraries, not just on JavaScript programming itself.

• JavaScript developers ready to publish reusable libraries
• Open-source contributors aiming to adopt professional workflows
• Teams requiring consistent and maintainable package configurations