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.

Apache OpenOffice - Apache OpenOffice is an open source, office document productivity suite.

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

Office Online - With Office Online you can view, edit, and share Word, Excel, PowerPoint, and OneNote files on your devices using a web browser, so you can work anywhere.

Apache OpenOffice Writer - Open-source word processor of the Apache OpenOffice suite.

Caret - Better Markdown Editor for Mac / Windows / Linux