Notepad++ - A free source code editor which supports several programming languages running under the MS Windows environment.
Caret Editor - Caret Editor is an editing tool for Chrome OS that is used for editing texts or codes.
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.
Nova Code Editor - Nova Code Editor is software that is used for writing and editing codes.
Notepadqq - Notepadqq is a linux clone (identical application) of Notepad++
Icecoder - ICEcoder is a browser code editor which provides a modern approach to building websites.