HTML is an acronym which stands for Hyper Text Markup Language which is used for creating web pages and web applications.
CSS is used to define styles for your web pages, including the design, layout and variations in display for different devices and screen sizes.
JavaScript is a text-based programming language used both on the client-side and server-side that allows you to make web pages interactive. Where HTML and CSS are languages that give structure and style to web pages, JavaScript gives web pages interactive elements that engage a user.
React.js is an open-source JavaScript library that is used for building user interfaces specifically for single-page applications.
Node.js is an open source server environment; Node.js is free ; Node.js can generate dynamic page content; Node.js can create, open, read, write, delete.
MongoDB is an open source NoSQL database management program. NoSQL is used as an alternative to traditional relational databases. NoSQL databases are quite useful for working with large sets of distributed data. MongoDB is a tool that can manage document-oriented information, store or retrieve information
GitHub, meanwhile, serves as a host for Git repository teams to store their code in a centralized location. While Git is a tool that's used to manage multiple versions of source code edits that are then transferred to files in a Git repository, GitHub serves as a location for uploading copies of a Git repository.