QOwnNotes is an open source (GPL) plain-text file markdown note taking application for Windows that works together with the notes application of Nextcloud and ownCloud. It is a free and open source note management application that's comprehensive, feature-rich, user friendly, advanced and well-designed.
Here are some screenshots to illustrate the features and user interface of this application:
Microsoft OneNote
EverNote
ToDoList
Anki
Sanwhole Studio