Pre-requisites: Install Node.js from here Running this tutorial git clone https://github.com/applitools/tutorial-selenium-javascript-basic.git cd tutorial-selenium-javascript-basic folder Set up environment variable APPLITOOLS_API_KEY with your own API key. Login to Applitools > Click on the Person icon > My API Key Linux/Mac: export APPLITOOLS_API_KEY=<your_key> Windows: set APPLITOOLS_API_KEY=<your_key> Don't forget to change the example with your own API key npm install npm run test