Joplin is a note-taking and to-do application. Notes can be organised into notebooks and are searchable and modified from the application or via your own text editor. Previous verions of the notes are also saved.
Notes exported from Evernote and Markdown files can be imported into Joplin.
Notes can be synchronised with various cloud services (including Dropbox and OneDrive) and the application is available for Windows, MacOS, Linux and as a mobile app on Android and iOS.