MeetBike Outliner.A fast, focused outliner for writing and planning.

Bike Outliner is a Mac writing app built around an editable outline. Rows can be nested, reordered, and focused so a long document remains navigable while its structure changes.
Use Bike for a project outline, meeting notes, a plan, or a draft. Expand the parts you need, collapse the rest, and move between a broad structure and a focused section without converting the work to a separate format.
Features
- Create and rearrange nested rows using the keyboard or pointer.
- Use headings, task lists, rich text, focus mode, and typewriter mode with a paid license.
- Keep outlines in document files; Bike supports its HTML-based .bike format along with OPML and plain text.
- Integrate with macOS Shortcuts and AppleScript where the licensed feature set permits.
Where it fits
Bike is especially useful when the order of ideas is still changing. It offers more structure than a plain text editor and less visual overhead than a mind map. The free mode remains usable for ordinary outline editing.
Privacy and requirements
Bike is a document-based Mac app; files can stay local or be placed in a sync folder chosen by the user. The current product page lists macOS 11 or later. Cloud behavior depends on the folder provider rather than a required Bike account.
Pricing
Bike is free for core reading and editing. The direct-download license is a one-time purchase with one year of updates; Mac App Store and Setapp editions use subscriptions.