LibreOffice - Writer - Open-source cross-platform word processor.

4thewords - Write more, have fun. We’re a writing software that blends productivity and game mechanics so you can defeat writer's block and build a consistent writing habit! (We’re like a gym, built by writers, for writers)

Google Docs - Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.

Write or Die - Write or Die is an application for Windows, Mac and Linux which aims to eliminate writer's...

Microsoft Word - Microsoft Word is a commercial word document processor for Windows.

The Most Dangerous Writing App - If you stop typing, all progress is lost.