Skrifa - A simple word processor built with web technologies.
AbiWord - AbiWord is a free software word processor.
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
LibreOffice - Writer - Open-source cross-platform word processor.
Joplin - Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, tagged and modified either from the applications directly or from your own text editor.
Microsoft Word - Microsoft Word is a commercial word document processor for Windows.