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- New Features
- Added Quick Look support for attachments. Simply select an attachment and push the spacebar to bring up Quick Look.
- Keynote '09 import support. You should be able to now import any Keynote file from any version. Support is still limited to straight text, no attachments or styles, but text blobs should be imported as well in addition to the bullet points.
- Stability
- Fixed an error caused by pasting a large amount of text into the batch find field.
- HTML/DHTML Exporters
- Text alignment should now always be used in HTML/DHTML exports. Specifically text alignment applied at the text insertion style level is now supported.
- Row child indent values should now be used in the HTML/DHTML exporters and Quick Look previews.
- Bug fixes
- Vertical page break indicators should now always be accurate. However, a side effect of the fix for this is that you will not always see the page break indicator once you've snapped to it.
- Quick Look option in the contextual menu is now correctly localized.
OmniOutliner 3.5 and newer do not support Mac OS X 10.2.x and require Mac OS X 10.3.9 or later.
OmniOutliner and OmniOutliner Professional both let you create and edit documents with up to 20 items when in unlicensed mode.
Release notes and known issues are included within the application. Please read them by selecting Release Notes from the Help menu in OmniOutliner. You can also read about the changes in 3.8 on the release notes page.
OmniOutliner 3 uses a new file format and any existing OmniOutliner 2 documents will be upgraded when opened (or you will also have the option to open them as read-only). Your original document will be saved with a new file name.
Any documents you create or modify using OmniOutliner 3 will use the new file format and will have to be exported to OmniOutliner 2 format if you want to open them in that version at a later time. The OmniOutliner 2 format does not support all of the features of OmniOutliner 3 so some data may be lost.
You may wish to rename your copy of OmniOutliner 2.2.6 before installing version 3 instead of overwriting the older version. If you do need to download version 2 again OmniOutliner 2.2.6 is still available.
- Download
- Mount
- Install
- Eject
In the "Download Now" section of the sidebar on the right, click the version you want to download (OmniOutliner or OmniOutliner Pro).
Wait until the download is complete. If your web browser and system are properly configured, Disk Copy or Finder will open and mount the downloaded disk image. If this does not happen, locate in Finder the .dmg file that you downloaded and double-click it to open the file. (Double-check to be sure that you've quit all running copies of OmniOutliner before you continue any further...)
When the disk image mounts, a new Finder window will open that contains the icon for your new OmniOutliner application. Simply drag this icon to your Applications folder (or wherever you would like to keep it) to install. This copies the application from the virtual disk image onto your hard disk so the application is there for you to use whenever you like.
Once OmniOutliner is installed you can safely 'eject' the virtual disk that it came on and also dispose of the .dmg file that you downloaded if you choose. Double-click the OmniOutliner icon in the location you installed it in order to begin using the application. You may wish to drag the icon to the Dock for easy access.

We love to hear from our users about what they would like to see in OmniOutliner. Bug reports, feature requests, and creepy love letters - we like it all! Send us your feedback today!