Redactor is a jQuery based HTML WYSIWYG editor. It works cross-browser & cross platform and has localization for over twenty countries.
It is much more lightweight than both TinyMCE and CK Editor and features:
- Drag & drop uploading of files & images
- Keyboard shortcuts
- Custom toolbar options
- Full screen display
- Source code view
- Autore size
- Auto save
- Multiple instances
It is under active development and new features are frequently released.