Full Node.js • npm • Express.js

JavaScript Runtime. Ready to Go.

Full Node.js environment with npm, Express.js, async/await patterns, and REST API development. Zero setup. Start building backend applications instantly.

Launch Node.js Playground → View Node.js Curriculum →
Node.js development playground with full runtime in the browser

Not a Simulator. A Real Node.js Runtime. Build, Deploy & Scale Backend Apps

Access a Real Node.js Environment , Not Watching

This is not a browser-based JavaScript console. You get a real Linux environment with Node.js installed, terminal access, and full filesystem. Run servers that listen on real ports, install native modules, and work with the same runtime used by Netflix, LinkedIn, and PayPal.

Student testimonial
Student testimonial
"Having a real Node.js environment instead of a browser console was a game changer."

Engineering Student

Start Node.js Lab
→
Real Node.js environment with full runtime and terminal access

Build APIs Instantly , Not Watching

Go from zero to a running Express.js server in under a minute. Set up routes, connect middleware, handle JSON payloads, and test your endpoints — all in your browser.

Student testimonial
Student testimonial
"Building Express APIs in the playground felt like real backend development."

Backend Developer Candidate

Build an API
→
Build Express.js APIs instantly in the browser

Full npm Access , Not Watching

The npm registry has over 2 million packages. Install anything you need — database drivers, authentication libraries, testing frameworks, CLI tools. Practice managing package.json, lock files, and scripts.

Student testimonial
Student testimonial
"Having full npm access meant I could build real projects, not toy examples."

Software Engineer (Junior)

Explore npm
→
Full npm access with 2 million packages available

Node.js Playground by the numbers

6 +

Hands-on Node.js labs from basics to API development

100 %

Real Node.js runtime (not a browser console)

0

Setup or installation required

npm init. Start Building.

Node.js powers millions of backend services worldwide. Stop reading tutorials and start building real APIs, real servers, and real applications. Your environment is ready in seconds.

Start Node.js Playground →

Students building backends with DeployU

Photo of Final Year CSE Student

"Building real Express.js APIs with npm packages in a full Node.js environment was incredibly productive."

Final Year CSE Student

How real Node.js environment helped build backend development skills.

Read full story
→