Npm, short for Node Package Manager, is a widely used package manager for the JavaScript programming language. It allows developers to easily share and manage code packages, making it simpler to incorporate libraries and tools into their projects. Npm is an essential part of the Node.js ecosystem, enabling developers to install, update, and manage dependencies efficiently. With a vast repository of packages available, Npm simplifies the process of finding and using third-party libraries. It also supports version control, ensuring that projects can maintain compatibility with specific package versions. This functionality has made Npm a cornerstone of modern web development.