Atom is a hackable text editor for the 21st century, built on atom-shell, and based on everything we love about our favorite editors. We designed it to be deeply customizable, but still approachable using the default configuration. (MIT)
Linux - Windows - macOS
Brackets is a lightweight, yet powerful, modern text editor. We blend visual tools into the editor so you get the right amount of help when you want it. With new features and extensions released every 3-4 weeks, it's like getting presents all year long. (MIT)
Linux - Windows - macOS
enki is a text editor for programmers. It's user friendly, hacker friendly, extensible and cross-platform. (GPL)
Linux - Windows
GNU Emacs is an extensible, customizable text editor—and more. (GPL)
Linux - FreeBSD - Windows - macOS
Notepad++ is a free (free as in "free speech", but also as in "free beer") source code editor and Notepad replacement. (GPL)
Windows
SciTE is a free source code editor which includes useful features such as syntax styling, error indicators, folding, code completion and call tips. (HPL)
Linux - Windows
Vim is a highly configurable text editor built to enable efficient text editing. (GPL)
Linux - FreeBSD - Windows - macOS
8 applications