OmniOutliner Pro is a professional tool for outline editing and information structuring management, serving as a benchmark product for outline software on the Mac platform. It is tailored for users who require structured thinking, information organization, content creation, and project planning, offering a simple yet powerful set of features that can handle both simple to-do lists and complex book outlines, project lifecycle management, and academic research frameworks.
Key Features:
1. Infinite-Level Outline Structure
The software supports unlimited levels of outline creation, allowing users to freely build a complete framework from simple lists to complex documents. It supports one-click expansion and collapse of any section, enabling control over the overall structure and focus on detail refinement. Each outline item can be independently added with rich text notes, allowing for layered presentation of core information and supplementary content, balancing framework completeness with information richness.
2. Intelligent Multi-Column Data Management
Breaking through the limitations of traditional text-only outlines, OmniOutliner Pro supports fully customizable multi-column layouts, with options for checkboxes, dropdown lists, numbers, dates, durations, and rich text data types. This feature transforms the software beyond outline editing, making it suitable for simple project tables, budgeting sheets, and task progress management, and enabling multi-dimensional systematic information management.
3. Comprehensive Professional Style System
The software comes with a complete set of structured styles and naming style customization, allowing for independent settings of font, color, line numbers, indentation, and background formats at different levels and types. Changes in one place are synchronized across the entire document, balancing professional document quality with personalized expression. The software also includes multiple dynamic themes and official templates compatible with macOS dark and light modes, allowing for quick creation of professional documents with one-click application. Users can also save their custom settings as templates for efficient reuse.
4. Rich Media and Content Expansion Capabilities
The software supports embedding images, audio, video, PDFs, and document links within outline items, enabling direct recording of audio within the software and linking it to the corresponding item. This feature is ideal for scenarios such as meeting minutes, interview summaries, and course notes. The software also provides comprehensive rich text editing capabilities, supporting text bolding, italicizing, hyperlinks, and multi-level lists, allowing for detailed layout presentation within the structured framework.
5. Efficient Search and Focus Editing
The software includes a full-text keyword search function, enabling quick location of target items and content within a vast amount of information. It supports single or multiple chapter selection for focused editing, with the ability to instantly hide non-target chapter content, reducing distractions and focusing on the current editing section. This significantly lowers the editing threshold for long documents and complex outlines.
6. Format Compatibility and Export Capabilities
The software natively supports exporting to OPML, plain text, rich text, HTML, PDF, Word, and image formats, meeting diverse content distribution, printing, and collaboration needs. It also supports importing and exporting from popular outline software formats, ensuring seamless migration of content and maintaining cross-platform collaboration efficiency.
Version 6.2.1 Update Highlights:
Localization – Completing missing localized text in the inspector and sidebar.
Multi-window Support – Ensuring all windows are immediately sorted after adding new data rows when column sorting is enabled.
Multi-window Support – Maintaining the current window active after saving operations.
Paste Function – Automatically attempting to convert pasted data to the appropriate column type.
Image Attachments – Displaying images at their original resolution when zoomed in.
Image Attachments – Maintaining correct resolution regardless of zoom level.
Localization – Translating the “Highlight 1,” “Highlight 2,” and “Highlight 3” templates within templates.
Quick Look – Correcting the display name of the Quick Look generator.
Scroll Bar – Ensuring the inspector does not obstruct the scroll bar in the outline view when expanded.
Paste Function – The “Paste Original Format” function can still be used when the clipboard contains links or images.
Omni Crash Reporting Tool – Fixed compatibility issues with the latest macOS version.
Software Screenshots:






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