Outliner Softwares and Apps

TreePad is a versatile personal information manager and notes organizer that utilizes a hierarchical tree structure to help you manage various types of information, from simple notes and to-do lists to complex knowledge bases. ...more

TreeSheets is a hierarchical data organizer and note-taking application that utilizes a unique tree-like grid structure to manage information in a highly visual and flexible manner. It supports various data types and offers features for brainstorming, list management, and spreadsheet-like organization within a unified interface. ...more

GTDNext is a web-based task management application designed for individuals and teams, focusing on the Getting Things Done (GTD) methodology. It offers a unique hierarchical structure, allowing users to break down complex projects into manageable steps, and includes features like recurring tasks, dependencies, and integrations to streamline workflows. ...more