Jopin - An open source note taking and to-do application with synchronization capabilities for Win, Mac, Linux, iOS and Android
Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, can be copied, tagged and modified either from the applications directly or from your own text editor. The notes are in Markdown format.
Notes exported from Evernote via .enex files can be imported into Joplin, including the formatted content (which is converted to Markdown), resources (images, attachments, etc.) and complete metadata (geolocation, updated time, created time, etc.).
The notes can be synchronised with various targets including the file system (for example with a network directory) or with Microsoft OneDrive. When synchronising the notes, notebooks, tags and other metadata are saved to plain text files which can be easily inspected, backed up and moved around.
Joplin is still under development but is out of Beta and should be suitable for everyday use.
I'm using Standard Notes right now which works perfectly but has no text formatting in the free version. I'd be very interested in Joplin once it can sync to NextCloud or Dropbox.