Notepad++ - A free source code editor which supports several programming languages running under the MS Windows environment.
Notepadqq - Notepadqq is a linux clone (identical application) of Notepad++
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.
Visual Studio Code - Build and debug modern web and cloud applications, by Microsoft
Notepad - Most simple text editor. Just plain text, saves in .txt format.
WildEdit - WildEdit is simply a wild text editing application that features the functions for editing many files at once and viewing many files at once as well.