ConnectedText

ConnectedText is a powerful but simple information management system.
Boostnote

Boostnote is an open-source note-taking app.
QOwnNotes

QOwnNotes is a free plain-text notepad with markdown support for Linux, Mac OS X and Windows, that works together with ownCloud Notes.
Streaks

The to-do list that helps you form good habits.
Inkdrop

The note-taking app with robust Markdown editor, supporting macOS, Windows, and Linux.
Joes Goals

Joe’s Goals is an online goal-tracking website.
100% Free.
No Download Required.
42goals

42goals is a simple tool for tracking your daily goals and keeping a log of your daily activities.
Joplin

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, tagged and modified either from the applications directly or from your own text editor. .
Beeminder

Beeminder.
LifeRPG

Automatically prioritize your goals and gain XP for achieving them.
Features:.