Apps with 'Hierarchical structure' feature
WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat.
A digital notebook application that gives people one place to gather notes and information. .
An open source note taking and to-do application with synchronisation capabilities.
With so many tools, it's hard to keep everyone on the same page. Notion is a new tool that unifies them all.
Zim brings the concept of a wiki to your desktop.
A hierarchical note taking application, featuring rich text and syntax highlighting, storing data in a single xml or sqlite file.
Free and open source, Java-based mind-mapping app for the desktop featuring a hierarchical editor that emphasizes folding.
TagSpaces is an open source personal data manager.It helps you organize and browse your files on every platform.Cross-platform file tagging and file finding
List-making software with infinite levels of indentation, giving you the flexibility of infinite layers of organization.
An award-winning cloud-based Project Management software aims to help collaborative teams organize and manage from small enterprise projects to large-scale initiatives..
Dynalist is a web app that lets you break down and organize your thoughts in the format of lists.
A "hierarchical spreadsheet" that is a great replacement for spreadsheets, mind mappers, outliners, PIMs, text editors and small databases.
Org mode is for keeping notes, maintaining TODO lists, planning projects, and authoring documents with a fast and effective plain-text system.
Colorful & powerful sticky notes app for Windows & Phones. Set reminder alarms, attach them to any website or document, organize them using folders/tags, sync sticky notes between devices & send notes across LAN or to any contact across the globe.
Nuclino is the easiest way to organize and share knowledge in teams. Create real-time collaborative documents and connect them instantly like a wiki.