Atom for Mac

Atom describes itself as a hackable text editor, allowing new and intermediate programmers the chance to create their own text editor without years of work or programming experience. It is an open-source text editor that has made altering its code easier than ever.

This tool can be customized to your heart's content or used as a free text editor without ever touching the config file. Atom is built with Node.JS integration, HTML, CSS, and JavaScript, running on Electron, a framework that allows you to build cross-platform apps using web technologies. You can truly customize your own text editor and add features with JavaScript and HTML. Additionally, Atom comes with its own packages and themes, allowing you to install edits created by other people.