Node.js Sandbox Playground

A shell with Node.js and npm for scripts, modules and package.json practice.

What is Node.js

A shell with Node.js 22 and npm. Write and run scripts, try modules, and manage a package.json. There is no internet in the sandbox, so installing packages from the registry is not possible; everything built into Node works.

Node.js playground

What is included

Node.js 22 and npm
Built-in modules: fs, http, path, readline and more
vim and nano to write code

Good to know

No internet access and no sudo inside the sandbox
A session with no typing for 30 minutes is closed to free its seat
Your files are removed when the session ends
If every seat is taken, the page waits and retries for you

Features

Runtime

Allowed:

Node.js 22
- The REPL, scripts, ES modules and CommonJS
- node --watch and node --test

npm

Allowed:

Project tooling
- npm init, run, pkg set, version
- package.json scripts

Built-in modules

Allowed:

Everything that ships with Node
- fs, path, os, events, stream
- http, crypto, readline, child_process