In daily development, Node.js runs JavaScript outside a web browser, powering web servers and APIs, command-line utilities, and the build tools used by frameworks such as React, Vue, and Angular. It also lets developers run project scripts and install the packages those projects depend on, making it useful even when the final work is primarily a front end.
Node.js is a JavaScript runtime built on Chrome’s V8 engine. It is open source under the MIT licence and supports Windows 10, Windows 11, macOS, and Linux. Its shared runtime helps teams use the same JavaScript code across these platforms, although the quality and security of individual npm packages can vary.
For routine setup, Node.js includes npm, which installs packages from the npm registry and runs scripts defined by a project. The Windows MSI installer can add both node and npm to PATH, so they are available from the command line after installation. Node.js also provides built-in modules for file system access, HTTP, streams, and crypto, along with a test runner, reducing the need for extra packages for common tasks.
Choosing a release and installing on Windows
Node.js has two release lines: LTS and Current. LTS means long-term support and is the practical choice for most users and production work because it receives security fixes for an extended period. Current provides the newest features and is intended for users who specifically need to try them.
The 64-bit MSI installer for the current LTS release provides a straightforward Windows setup. Keeping the default PATH option allows commands to be run from a terminal. The installer also offers a Tools for Native Modules step that installs Python and Visual Studio Build Tools through Chocolatey. This extra setup is only needed when an npm package requires native compilation, so it can be skipped otherwise.
After installation, verify that the command-line tools are available by running node -v and npm -v. These commands report the installed runtime and package manager versions, helping confirm that both were added successfully.
Using Node.js in projects
Once a project’s packages are installed, npm can run its scripts, while Node.js executes JavaScript files and server-side code. The built-in node –watch mode automatically restarts a script when files change, which can make repeated testing during development more convenient.
Node.js is suited to web developers, students learning JavaScript, and anyone whose development tools require node or npm. Its package ecosystem can support many project tasks, but packages should be selected with care because their maintenance and security are not uniform.
Version management and practical limits
A standard installation provides a Node.js version, but switching between several versions for different projects requires a separate version manager. That is an important consideration when projects depend on different runtime versions; Node.js alone does not provide per-project version switching.
Native npm packages can also require additional Windows build tools, unlike packages that install without compiling native code. For most users, beginning with the LTS release and adding those tools only when a package requires them keeps setup focused while preserving access to Node.js and npm for everyday development.