What I appreciate most about Node.js is the speed and simplicity it offers for backend development. The ability to use JavaScript on both the frontend and backend results in a smooth workflow and helps keep the learning curve manageable for new team members. Its non-blocking I/O model makes Node.js highly efficient at handling large numbers of requests, which is a significant benefit when creating scalable applications. Additionally, the vast npm ecosystem makes integrating libraries and adding features both quick and straightforward. Review collected by and hosted on G2.com.

One of the main areas where improvement is needed is in handling CPU-intensive tasks. Although Node.js performs exceptionally well with real-time operations, it can struggle with more complex computations, often requiring the use of workers or external services to maintain performance. Additionally, some npm packages are not consistently maintained, which can sometimes result in dependency problems. While these challenges are manageable, they do highlight aspects of the experience that could be made more seamless. Review collected by and hosted on G2.com.

Node.js is just... smooth. I love how quick and easy it is to set things up. Like, I can build a working API in literally 10 minutes, no overkill setup, no weird boilerplate. It's fast, minimal, and runs like a charm. Also, npm is a blessing, lol, so many packages, for anything you can think of. From handling auth to sending emails or working with files, there’s a package ready to plug in. Honestly, it just makes development fun. Review collected by and hosted on G2.com.

ummm… if I really have to say something, I’d say structure can go wild if you’re not disciplined. Since Node doesn’t force a specific way of building things, it’s easy to end up with messy code Review collected by and hosted on G2.com.

I have been using Node.js for over a few years now and it has been fast and reliable since the very beginning of my development experience.

It easily integrates with a lot of npm packages and it provides a lot of inbuilt core libraries as well. Review collected by and hosted on G2.com.

Node.js is quite fast both at development speed and at running code but it becomes a problem when the codebase scales. The folder structure and the flexibility it provides make it complex to manage a large codebase. Review collected by and hosted on G2.com.

Its architecture and ecosystem consistently deliver in several technical areas:

• Asynchronous, Event-Driven Architecture

Node.js uses an event-driven, non-blocking I/O model. This design efficiently handles multiple concurrent connections without spawning threads for each request, reducing resource consumption and complexity. The asynchronous I/O primitives in the standard library ensure that most operations do not block the main thread, which is particularly effective for real-time applications and APIs.

• Single Language for Full Stack Development

By running JavaScript on the server side, Node.js enables developers to use the same language across both client and server components. This unification streamlines code reuse and simplifies development workflows, especially in teams with strong frontend expertise.

• Performance and Scalability

Node.js runs on the V8 JavaScript engine (the same engine as Google Chrome), providing fast execution of JavaScript code outside the browser. The single-threaded event loop model allows handling thousands of simultaneous connections, which is particularly beneficial for I/O-heavy applications such as APIs, chat servers, and streaming platforms.

• Cross-Platform Support

Node.js is available for a wide range of operating systems, including Windows, Linux, macOS, and Unix. The installation process is straightforward, with official installers and long-term support (LTS) releases available for all major platforms.

• Rich Package Ecosystem (npm)

Node.js integrates seamlessly with npm (Node Package Manager), providing access to a vast repository of open-source libraries and tools. This ecosystem accelerates development and fosters rapid prototyping by offering reusable modules for almost any use case.

• Active Community and Governance

Node.js is maintained by the OpenJS Foundation, ensuring transparent governance and regular updates. The project is open-source, with a large, active community contributing to its ongoing improvement and security.

• Modern JavaScript Support

Node.js supports the latest ECMAScript standards, allowing developers to use modern JavaScript features without waiting for browser adoption. Experimental features can be enabled via runtime flags, offering flexibility for early adopters. Review collected by and hosted on G2.com.

• Single-Threaded Limitations

While the event-driven model is efficient for I/O-bound workloads, Node.js can struggle with CPU-intensive tasks. Heavy computation in the main thread can block the event loop, leading to degraded performance for all connections. Workarounds such as worker threads or offloading to external services add complexity and are not always straightforward to implement.

• Callback Complexity and Error Handling

Asynchronous programming in Node.js often leads to deeply nested callbacks (commonly known as “callback hell”), which can make code harder to read and maintain. Although modern syntax like Promises and async/await alleviates this issue, legacy codebases and some third-party modules still rely heavily on callbacks.

• Ecosystem Fragmentation

The npm ecosystem is vast but can be inconsistent in terms of quality and maintenance. Some packages may be outdated or lack proper documentation, requiring careful vetting before adoption.

• Rapid Release Cycle and Compatibility

Node.js evolves quickly, and while this brings new features, it can also introduce breaking changes or deprecate APIs. Keeping up with updates and ensuring compatibility across dependencies may require additional effort, especially in larger projects. Review collected by and hosted on G2.com.

Easy to use library repositories, well supported engine, large and incredibly helpful community spread across the internet, and is probably the most widely used base for most web modern applications. Review collected by and hosted on G2.com.

There are some quirks to ECMA script like the known issue with the g flag of the regex engine on some versions which causes it to operate in unpredictable ways. The other challenge is compatibility issues between common JS requires and the newer modular approach. Many large providers still only support the older style. This can make it challenging to build with the full set or libraries that are available. Review collected by and hosted on G2.com.

Easy to use, integrate and implement. I use it daily at this point cause it has everything I need. Review collected by and hosted on G2.com.

Its starting to fall back a little but thanks to the community, it gets better day by day. Review collected by and hosted on G2.com.

It is single threaded and express and nestjs frameworks are easy built on JavaScript Review collected by and hosted on G2.com.

Various libraries which we need to remember Review collected by and hosted on G2.com.

I like the most about it's asynchronous I/O operations using libuv library written in C. It's highly efficient and easy to write I/O intensive applications. Review collected by and hosted on G2.com.

I think the most important thing is performace and nodeJS is lagging in this category, as it's single threaded so computation intensive tasks are not suitable here to do. Review collected by and hosted on G2.com.

Node.js allows for multi-stack development, enabling the creation of both frontend and backend applications. Setting up Node.js is straightforward, and in my years of experience, I have used it for building both frontend web apps and backend servers. It allows developers to use JavaScript for both client-side and server-side scripting.

With its event-driven architecture and non-blocking I/O operations, Node.js is ideal for applications like chat apps, gaming servers, and collaborative tools that require constant updates.

Node.js is well-suited for building RESTful APIs and microservices. Its lightweight and fast nature, combined with the extensive ecosystem of NPM (Node Package Manager), makes it easy to develop and maintain scalable and performant APIs.

Node.js can be easily integrated into web apps, servers, and lambda functions. Many frameworks are built upon Node.js, enhancing its versatility.

In my experience, I have completed numerous projects using Node.js. Its asynchronous nature allows it to handle a large number of concurrent connections with minimal resource consumption.

The Node.js community is continually growing. With lot of open-source projects, tutorials, and resources available, developers can quickly find support and solutions to common problems. This active community also contributes to the rapid evolution and improvement of Node.js. Review collected by and hosted on G2.com.

With Node js growing continuosly, there's nothing which I don't like about it. Review collected by and hosted on G2.com.

Node.js is an excellent runtime environment for JavaScript, ideal for developing server-side applications. It empowers developers to execute server-side functions seamlessly, including performing CRUD operations on databases, handling data, and ensuring data security through authentication. Node.js offers built-in libraries like JWT for authentication, simplifying the process of securing data. I mostly use NodeJs everyday as my primary server side framework.

Creating servers and APIs for web applications is remarkably straightforward with Node.js. Its ease of implement and integration capabilities make it a popular choice for developing safe, secure, and efficient server-side applications. As a result, a significant number of web applications are built on Node.js, leveraging its robust features for enhanced functionality and reliability. Review collected by and hosted on G2.com.

Something I dont like about NodeJs is that it is only supported single threaded operations and doesn't have high computational power so sometimes we have to take use of python or django for creaing such applications. Review collected by and hosted on G2.com.