Editor enhancements. Most people using Atom didn’t start off with it. Atom is a relatively new application, coming out only in 2015. What this means is that most developers who use Atom started with another editor like Sublime Text or TextMate, and noticed certain UI features missing out-of-the-box. Sublime Text is a sophisticated text editor for code, markup and prose. You'll love the slick user interface, extraordinary features and amazing performance.