Node.js is a JavaScript runtime built on Chrome’s V8 JavaScript engine. It allows developers to run JavaScript on the server side, creating server-side applications with JavaScript.
Node.js is known for its non-blocking, event-driven architecture and its ability to handle large amounts of concurrent connections efficiently. This makes it well-suited for building real-time, scalable network applications, such as web servers, chat servers, and streaming servers.
Node.js has a large ecosystem of libraries and frameworks that make it easy to build and deploy web applications. It is also widely used for building command-line tools and for creating automation scripts.
In addition to its server-side capabilities, Node.js can also be used for building client-side applications, such as desktop applications and mobile apps, using tools like Electron and React Native.
Overall, Node.js is a powerful and popular tool for building a wide range of applications, both on the server side and the client side.