Outline

Outline provides a flexible digital notebook for macOS, iPad, and iPhone, letting users capture text, to‑do lists, tables, PDFs, images, drawings and other attachments within a hierarchical notebook structure. Notes can be moved freely on a page, linked internally or externally, tagged, and searched, while built‑in backup and version history allow recovery of deleted fragments. The app stores files locally and offers optional synchronization with user‑chosen cloud services such as Dropbox, iCloud, OneDrive, Box, WebDAV or SharePoint, and it encrypts individual sections with AES‑256, protecting data with Touch ID or a passcode.

Target audiences include writers, designers, students, educators, professionals and anyone who needs an organized personal knowledge base. Its editing tools aim to produce visually polished documents comparable to traditional word processors, while the interface is designed to feel like a paper notebook with drag‑and‑drop note placement. Compatibility with Microsoft OneNote notebooks enables users to work with existing files across platforms.