Notepad online is a completely free to use browser-based text editor. Notepad online allows you to create and edit multiple plain-text files as well as rich-text files from within your browser from anywhere in the world with a working internet connection. Even though there is option to register and login (100% free) it is not at all required for you to get started with Notepad online. Logging in comes with the advantage of keeping documents saved for you, so you may save online and access them later. However, Notepad Online gives you the option of downloading your created documents directly to your system, or phone and resume from wherever you left off. The documents are stored and retrieved in .txt format.
Notepad++ - A free source code editor which supports several programming languages running under the MS Windows environment.
OnlineNotepad.org - Free browser-based text editor
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.
aNotepad - anotepad.com is an online text editor that you can write notes and anotepad also has great stability
Notepadqq - Notepadqq is a linux clone (identical application) of Notepad++
Shrib - Take notes online. 'Free and no login' or 'AI assistant, visitor stats, privacy and productivity': super simple, with publishing and markdown, share to all devices.