Screen montior github repository has both chrome extension as well as backend website for admin users.
Download or clone github this repository.
git clone https://github.com/Punit611/screen_moniter.git
Start nodejs project.
By entering in screen_moniter folder.
npm init
npm install
nodemon index.js
Enable chrome developer mode.
Click on load unpacked.
Give path of folder which have manifest.json file to google chrome in my case it in present chrome_extension folder.