Outliner based on the once popular Acta for Mac. Outliners make great organizing tools for notes, projects, plans, task lists. If you’ve never used an outliner, Opal is the one to try first.

Opal lets you organize just about anything — ideas, reports, lists, notes, projects, graphics — in the form of an outline.

9WR - Opal: Outliner for organizing thoughts, notes, tasks, exports to Microsoft Word.