Outliner Apps and Services

NoteCase Pro is a versatile, cross-platform application designed for efficiently capturing, organizing, and managing various types of information. It offers a hierarchical structure, robust security features, and extensive customization options for users across different operating systems.

OutWiker is a portable, tree-structured note-taking application that allows users to organize information hierarchically. Functioning as a personal wiki or outliner, it provides a simple yet powerful way to manage notes, documents, and ideas in a flexible, offline environment.

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.

The Guide is a discontinued, portable desktop application designed for creating and organizing information in a hierarchical tree structure. It functions as an outliner and a basic personal information manager, allowing users to associate text and notes with each node in the tree.

KeyNote NF is a versatile, open-source notebook application offering a tabbed interface, rich text editing, multi-level note organization, and robust encryption for secure information management.

CherryTree is a powerful, free, and open-source hierarchical note-taking application. It allows you to organize your thoughts, ideas, notes, and code snippets in a tree-like structure with rich text editing and syntax highlighting.

ToDoList is a robust, free task management software designed for individuals and teams seeking a highly customizable, tree-structured approach to project organization. It excels in breaking down complex projects into manageable subtasks, offering features like Gantt charts, Kanban boards, and extensive export options without requiring a web connection.

OmniOutliner is a powerful commercial outlining and information structuring application designed for macOS. It enables users to organize ideas, tasks, notes, and projects in a flexible, hierarchical format.

AllMyNotes Organizer is a comprehensive personal information manager and outliner for Windows. It allows users to securely store, organize, and retrieve diverse information in a single, encrypted file, utilizing a hierarchical tree structure for intuitive navigation and management of notes, documents, passwords, and more.

NoteCase Pro is a versatile, cross-platform application designed for efficiently capturing, organizing, and managing various types of information. It offers a hierarchical structure, robust security features, and extensive customization options for users across different operating systems.

OutWiker is a portable, tree-structured note-taking application that allows users to organize information hierarchically. Functioning as a personal wiki or outliner, it provides a simple yet powerful way to manage notes, documents, and ideas in a flexible, offline environment.

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.

The Guide is a discontinued, portable desktop application designed for creating and organizing information in a hierarchical tree structure. It functions as an outliner and a basic personal information manager, allowing users to associate text and notes with each node in the tree.

KeyNote NF is a versatile, open-source notebook application offering a tabbed interface, rich text editing, multi-level note organization, and robust encryption for secure information management.

CherryTree is a powerful, free, and open-source hierarchical note-taking application. It allows you to organize your thoughts, ideas, notes, and code snippets in a tree-like structure with rich text editing and syntax highlighting.

ToDoList is a robust, free task management software designed for individuals and teams seeking a highly customizable, tree-structured approach to project organization. It excels in breaking down complex projects into manageable subtasks, offering features like Gantt charts, Kanban boards, and extensive export options without requiring a web connection.

OmniOutliner is a powerful commercial outlining and information structuring application designed for macOS. It enables users to organize ideas, tasks, notes, and projects in a flexible, hierarchical format.

AllMyNotes Organizer is a comprehensive personal information manager and outliner for Windows. It allows users to securely store, organize, and retrieve diverse information in a single, encrypted file, utilizing a hierarchical tree structure for intuitive navigation and management of notes, documents, passwords, and more.