Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

EverNote

1. Evernote sounds like a good option for Windows/Mac users.

2. Tusk is a desktop client for EverNote.

3. NixNote (3rd party cross-platform client for EverNote)

fix the issue note the content is invalid!!! http://appslova.com/could-not-sync-note-the-content-is-invalid-in-ipad-iphone-and-android/

Boostnote

CherryTree

Zim

1. Zim is a very good free alternative. You can manually sync notes using Dropbox, TeamDrive, etc.

Zim Plugins for Firefox

1. Zim Clip

2. Zim Capture

Misc

1. KeepNote

2. Basket Note Pads

3. GeekNote (command-line client for EverNote)

4. Out of Milk

5. Remember the Milk

6. Taskwarrior (the package is named task in Debian)