CKEditor - Real-time collaborative future-ready rich text editor
Open Peeps - A hand-drawn illustration library.
Summernote - Summernote is a JavaScript library that helps users create WYSIWYG editors online.
Control Illustrations - 108 free flat illustrations with customizable characters
Froala Editor - Froala Editor is a WYSIWYG HTML editor that enables rich text editing capabilities for the applications.
DrawKit - MIT licensed SVG illustrations, in 2 styles