OmniOutliner
OmniOutliner is a macOS outlining app for organizing notes, lists, and structured information into expandable documents and reusable formats.
What is OmniOutliner?
OmniOutliner is a native outlining and information-organization app for Mac that helps people structure ideas, notes, plans, research, and other hierarchical content. It is used by writers, students, project planners, and knowledge workers who need more control than a plain text editor or basic note app provides. Users can build expandable outlines, create columns for metadata, apply styles, and reorganize sections quickly as projects change. The app also supports document formatting, filtering, and export workflows that make it useful for writing, planning, meeting notes, and long-form structured documents. OmniOutliner is published by The Omni Group and fits best as a productivity tool for users who work with detailed outlines on macOS.
Key features
- Create expandable outlines for notes, plans, and structured documents
- Reorganize sections quickly with drag-and-drop editing
- Add columns to track details such as status, dates, or numbers
- Apply styles to rows and text for clearer document structure
- Filter and focus on specific parts of large outlines
- Export outlines for sharing or use in other workflows
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Safety overview
Status: Safe
OmniOutliner is legitimate productivity software for creating and managing structured documents. It typically works with the files you choose to open or save, which is normal for an outlining app. If you store outlines with sensitive project, research, or personal information, use your usual document security habits such as backups and access controls for the folders where you save them.
Recommendation: Keep OmniOutliner if you use it for outlines, planning, writing, or structured note-taking. If you no longer use the app, removing it is generally straightforward, but you may want to keep any outline documents you created before uninstalling.
Common paths
/Applications/OmniOutliner.app
Cache paths
~/Library/Caches/com.omnigroup.OmniOutliner6
Support paths
~/Library/Application Support/OmniOutliner
Preference paths
~/Library/Preferences/com.omnigroup.OmniOutliner6.plist
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