Top Alternatives to OutWiker

Zim is a powerful, open-source graphical text editor designed for maintaining a personal wiki or notebook. It allows users to organize notes, ideas, and various types of information in a hierarchical, interlinked structure, similar to a wiki.

wikidPad is a free and open-source wiki-like notebook application that allows you to store your thoughts, notes, and snippets of information in a highly organized and cross-referenced manner. Its strength lies in the effortless creation of links between pages, making it easy to navigate and connect related ideas.

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.

RedNotebook is a free and open-source desktop journal and diary application offering a clean interface and features for organizing notes, thoughts, and ideas with a calendar view, tag search, and basic text formatting.

KeepNote is a versatile note-taking application designed for organizing information in a hierarchical structure. Available on Windows, Linux, and macOS X, it features robust organization tools, including a tree-like outline, wiki-like linking, and support for embedded files and images. Although discontinued, its local storage and rich features make it a compelling tool for detailed note-taking and research.

BasKet Note Pads is a versatile, freeform note-taking application for KDE that allows users to organize thoughts, manage tasks, and gather information visually. It supports various content types, offering powerful organization and sharing capabilities.

WizNote is a feature-rich, cross-platform cloud-based note-taking application designed for individuals and teams. It offers robust tools for capturing, organizing, and sharing information, with a strong focus on productivity and knowledge management.

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.

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.

MyTetra is a versatile, cross-platform information manager designed for collecting, organizing, and managing various types of data. It excels as a portable note-taking application, personal information manager, and notebook, offering a robust outliner and rich text editing capabilities.

myBase is a powerful, free-form database and information manager designed to organize diverse types of information including text, web pages, documents, and multimedia files within a flexible hierarchical structure.

ConnectedText is a versatile and powerful information management system built on wiki principles. It allows users to capture, organize, and link information efficiently, making it ideal for note-taking, writing, research, and building personal knowledge bases.