CKEditor - Real-time collaborative future-ready rich text editor
Moom - Move your mouse over the green zoom button in any window, and Moom's mouse control overlay will appear (as seen in the above animation).
TinyMCE - TinyMCE is a content editor that functions as a plug-in for Wordpress websites.
Hammerspoon - This is a tool for powerful automation of OS X.
Quill - Powerful, API-driven rich text editor
Spectacle App - Move and resize windows with ease.