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What is Node.js and what is it used for

Discover what Node.js is, how it lets JavaScript run on the server and what kinds of projects commonly use it.

Published: 28/06/2026Updated: 28/06/2026

Introduction

Node.js is an environment that allows JavaScript to run outside the browser, especially on the server.

Because of Node.js, JavaScript is not limited to the visual side of a website. It can also be used for APIs, backend applications and development tools.

Conclusion

Node.js greatly expanded the role of JavaScript in web development. It is now a very common technology in modern applications and API-based architectures.