Organize your ideas and projects for Mac in a simple and efficient manner!

OmniOutliner for Mac

OmniOutliner 5.9

  -  36.77 MB  -  Trial

Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system.

Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of OmniOutliner 5.9.


For those interested in downloading the most recent release of OmniOutliner for Mac or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


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If you have any questions or ideas that you want to share with us - head over to our Contact page and let us know. We value your feedback!

  • OmniOutliner 5.9 Screenshots

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    OmniOutliner 5.9 Screenshot 1
  • OmniOutliner 5.9 Screenshot 2
  • OmniOutliner 5.9 Screenshot 3

What's new in this version:

- OmniOutliner 5.9 introduces support for Shortcuts on macOS 12 Monterey. This update requires macOS 11 Big Sur or newer.
- Shortcuts Integration — Added support for calling Omni Automation scripts and plug-ins from Shortcuts on macOS 12 Monterey. For more detail, see the API Reference Release Notes (available via the Automation menu in the menu bar).
- Inspectors — Fixed the center and right paragraph alignment buttons to set the correct value when using a Mac powered by Apple silicon