node-uuid is a popular library for generating universally unique identifiers (UUIDs) in Node.js applications. It provides a straightforward API to create UUIDs that can be used for various purposes, such as database keys, session identifiers, and more. While node-uuid has been widely used, there are several alternatives available that offer similar functionality. Here are a few noteworthy alternatives:

• uuid is a modern and widely adopted library for generating UUIDs in both Node.js and browser environments. It is a more recent implementation that adheres to the RFC4122 standard for UUIDs. The uuid library provides different methods for generating UUIDs, including version 1 (timestamp-based) and version 4 (randomly generated). Its flexibility and compliance with standards make it a preferred choice for developers looking for a reliable UUID generation solution.
• uuid-random is a lightweight library focused solely on generating random UUIDs (version 4). It provides a simple API for generating UUIDs without the additional features or complexity found in other libraries. If you only need to generate random UUIDs and prefer a minimalistic approach, uuid-random is an excellent choice that keeps your dependencies light.
• uuidv4 is another library specifically designed for generating version 4 UUIDs. It is a small and straightforward package that focuses on providing a simple method to create random UUIDs. If your application requires only version 4 UUIDs and you want a dedicated solution without any extra features, uuidv4 is a suitable option.

For a comprehensive comparison of these libraries, check out the following link: Comparing node-uuid vs uuid vs uuid-random vs uuidv4.