Indigrid - Plain text outliner with side-by-side views.
Sublime Text - Sublime Text is a sophisticated text editor for code, html and prose - any kind of text file. You'll love the slick user interface and extraordinary features. Fully customizable with macros, and syntax highlighting for most major languages.
metapad - Metapad is a small, fast (and completely free) text editor for Windows 9x/NT/XP/Vista with similar...
Atom - At GitHub, we’re building the text editor we’ve always wanted: hackable to the core, but approachable on the first day without ever touching a config file. We can’t wait to see what you build with it.
Notion - All-in-one workspace. One tool for your whole team. Write, plan, and get organized.
Visual Studio Code - Build and debug modern web and cloud applications, by Microsoft