Code Playground is a online application for testing and showcasing user-created and collaborational HTML, CSS and JavaScript code snippets.


  • It allows the user to share their code in real-time with their friends.
  • The user can create custom rooms, and share its room-id to invite new members to the room
  • The application contains a built-in console feed, which shows the javaScript output on the fly
  • The user can also keep track of the number of users in the room using the handy icon on the top-right corner of the screen
  • The user is also able to stop or start the sharing whenever they wish to

Lighthouse Report


GTmetrix Report

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Technologies Used

  • ReactJS – Javascript library for easy and reliable web interface
  • Tailwind – CSS library for simple and rapid styling
  • ExpressJS – It is a back end web application framework for Node.js
  • – Socket.IO is a JavaScript library for realtime web applications. It enables realtime, bi-directional communication between web clients and servers

Available Scripts

In the project directory, you can run:

To run the client

In the /client folder directory, run the following command

yarn start

Runs the app in the development mode.
Open http://localhost:3000 to view it in your browser.

To run the server

In the /server folder directory, run the following command

npm run dev

Runs the server in the development mode.
The server will serve at http://localhost:4000.


View Github