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Opal is an outliner. It lets you organize just about anything - ideas, reports, lists, notes, projects, graphics - as an outline. It stands out for its uncluttered, fluid interface. But Opal includes features not found in other organizers:
  • Shrink a topic to a single line
  • Alphabetic and numeric sorting
  • Magnify on-screen text
  • Word count
  • Focus on part of the outline
  • Multiple selection
  • Link to other documents
  • Just create notes - no need to name them
  • Open Acta outlines
  • Spotlight search
  • Topic filtering via toolbar Search field
  • Smart checkboxes automatically track completion
  • Open or save OPML more...

What's New

Version 1.2.5:
  • This version requires Mac OS X 10.5 (Leopard).
  • Fixed some memory leaks.
  • Quit faster under Snow Leopard (10.6).
  • Fixed an OPML bug.
  • Added link to Facebook page.


Mac OS X 10.5 or later

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Current Version (1.x)


Downloads 16,535
Version Downloads 3,910
License Shareware
Date 14 Oct 2009
Platform OS X / PPC 32 / Intel 32
Price $32.00