MERN Stack App - login-signup-test.herokuapp.com Front-End - React + Redux Back-End - Node.js, Express.js & MongoDB Steps to run in development mode: Clone the repo or download a zip. Make sure you have Node.js & MongoDB installed in your system. Run (from the root) npm install and cd client && npm install to download dependencies. Start MongoDB service. cd .. && npm run dev to start server and client concurrently.