Notepad++ - A free source code editor which supports several programming languages running under the MS Windows environment.
Sintegrial Text Editor - Sintegrial Text Editor is a feature-rich and plain text editor that is widely available for almost all leading platforms and operating systems.
Notepadqq - Notepadqq is a linux clone (identical application) of Notepad++
Syn Text Editor - Syn Text Editor is a highly flexible and customizable text editor and programming editor for the Windows operating system user.
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.