Kosshi

Meet Kosshi

Kosshi is a native outliner for Mac, iPhone, and iPad. Users build a hierarchy by indenting rows, collapse sections, and drag items into a different order. Zooming into a row creates a focused view of that branch, with breadcrumbs for returning to the wider outline.

Inline Markdown supports formatted text, links, and checkboxes, while images, PDFs, and videos can appear beside notes. Tags, bookmarks, search, and text replacement help navigate larger collections. Dated tags can connect with Apple Reminders or Calendar. Files stay on the device, with optional iCloud synchronization, automatic backups, and export to Markdown, OPML, or plain text.