GUI desktop program for managing notes.
The program is written in C++ and uses the Qt library as the GUI.
This is my own implementation of a note management program.
Something like 'Evernote' and other similar programs (but my own).
But it's free and cross-platform.
I ran it on Linux and macOS, I don't know if it works on Windows (but I guess it should).
Notes can be added to a specific category.
They can be edited and changed.
They can be removed.
And as I mentioned, they can be moved from one category to another.
Through copy/paste operations you can cooperate with external content sources.
The note editor is simple but supports many operations. It has what it takes (at least for me).