Writer Helper is a WordPress plugin design for helping authors to write, edit and publish books on their website.
For each book, you can track writing/editing progress of every scenes and chapters.
Features list:
* Create books, chapters, scenes
* Export a book in EPUB or text format
* Display the books anywhere on your website via shortcodes and widgets
* Create game book, book where you are the hero
Sortable is a JavaScript library for reorderable drag-and-drop lists.
Demo: http://sortablejs.github.io/Sortable/
https://www.jointjs.com
JointJS Core library is licensed under the Open Source Mozilla Public License Version 2.0.