Atom is a powerful text editor built by Github for developing software, editing source codes and customizing applications. It uses HTML, JavaScript, CSS, and Node.js programming languages running on Electron architectural design. Atom is a desktop application that is open-source, accessible, and licensed under the MIT license. It is a favorite text editor among many developers and programmers in the 21st century. Atom helps users to save time due to its smart autocomplete feature, allowing developers to write codes swiftly and saving more time otherwise spent in coding. The free and open-source application also allows customization features, user interface, and syntax themes that match the user's preference and choice. Additionally, Atom has strong contenders in the text editors arena, including Sublime, Vim, Emacs, and Notepad++. It is a must-have tool for any serious developer who seeks to create user-oriented web, desktop, and mobile applications.