OmniOutliner Pro 6.4 for Mac

Mac Utilities

Updated Aug 21, 2026

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OmniOutliner Pro from The Omni Group is a dedicated outlining app for people who think in structured lists. Writers, researchers and planners use it to capture ideas as rows, group them under headings, and keep expanding a document without losing the overall shape. Pro adds styling, columns, attachments and automation, so a simple list can grow into a detailed document that stays easy to scan. Updated Aug 21, 2026.

Key Features

• Nested rows with folding so long documents stay readable
• Multiple columns for values, dates, check boxes and notes
• Named styles and themes for consistent formatting
• File attachments and links placed inside the outline
• Omni Automation support with scripts and Shortcuts actions
• Export to OPML, HTML and plain text

How to Download

1. Check that your Mac runs a current version of macOS.
2. Use this link to get the installer: Download from the official site and choose the Pro edition.
3. Open the downloaded file and move OmniOutliner to your Applications folder.
4. Launch the app, start the trial if offered, and create your first outline.

System Requirements

You need a Mac running a recent version of macOS, free storage for the app and an internet connection for the download and updates. Most modern Macs handle even large outlines without trouble.

FAQs

Is OmniOutliner Pro a one time purchase?

The Omni Group sells it as a perpetual license or a subscription, and one purchase covers Mac, iPhone, iPad and Vision Pro. Prices are listed on the vendor site.

Can I open my outlines on other devices?

Yes. Documents can be stored in iCloud Drive or another sync folder, so you can continue on whichever Apple device is at hand.

Does it export to other apps?

Yes. Export to OPML, HTML and plain text to move your structure into another tool.