FSNotes is modern text editor (like nvALT) on steroids.
FSNotes respect open formats: plain/text, markdown, rtf, and stores data in file system. You can view, edit, copy data in favourite external editor and see live result in FSNotes.
Markdown eidtor highlight code blocks on 170 languages, inline images available too.
Swift 4, open source.
Filterize is a cloud service that acts as your personal Evernote assistant. Tell the software how you organize your notes or just let its Artificial Intelligence learn how to do it automatically. Filterize will then manage your notes in the background, eliminating repetitive tasks, avoiding errors and saving you time.