Web-minecraft is minecraft client written in Javascript. From web browser this client connects to proxy that translates Websocket connection to TCP and then to real minecraft server (https://github.com/michaljaz/web-minecraft-proxy), so you can play minecraft in the browser.
Live demo with no installation: https://michaljaz.github.io/web-minecraft.
#Install node modules
npm i
#Building app bundle
npm run build
#Start node server and serve bundle files
npm start
