NoteBuddy - Collaborate with others live using an online notebook.

Notepad++ - A free source code editor which supports several programming languages running under the MS Windows environment.

Supernotes - The fastest way to take notes and collaborate with friends. Create notecards with Markdown, LaTeX, images, emojis and more. Get started for free!

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.

All Note - All Note app contains features to enable users to share their world-changing ideas with their friends and family members after writing them on the mobile phone’s screen. It supports various file formats such as HTML, Docx, doc, and pdf, etc.

Notepadqq - Notepadqq is a linux clone (identical application) of Notepad++