The best open source alternative to Workflowy is Logseq. If that doesn't suit you, our users have ranked more than 100 alternatives to Workflowy and loads of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Workflowy are Super Productivity, Notesnook, AppFlowy and Zim.
Local-first, privacy-focused notebook supporting Markdown and Emacs Org mode. Offers offline use, encrypted backups, plugin extensibility, LaTeX support, real-time collaboration, and hierarchical organization for personal knowledge management.
Free, open-source software offering task management and time tracking across Linux, MacOS, and Windows with Jira, GitHub, and GitLab integration, plus a pomodoro timer for breaks and focus. Designed with privacy in mind, it requires no user data collection or registration.
Offers open-source, end-to-end encrypted notes with device-based privacy, cross-platform support, private vault, secure sync, offline access, markdown editor, exports to multiple formats, automatic backups, organizational tools, and strong encryption.
Open-source workspace offering complete data control, deep customization via themes, plugins, and templates, native multi-platform support using Flutter and Rust, offline access, privacy features, collaborative tools, and easy extensibility for all users.
Zim brings the concept of a wiki to your desktop. Store information, link pages and edit with WYSISYG markup or directly typing some lightweight markup syntax and see it previewed as-you-type. Creating a new page is easy by either clicking on the "Create new note"...
Open-source wiki and documentation solution offering real-time collaborative editing, robust permissions, group management, spaces for organizing content, inline commenting, full-page history, advanced full-text search, nested pages, attachments, and flexible storage.
SiYuan is a desktop Markdown Block-Reference and Bidirectional-Link note-taking application. Support fine-grained block-level reference and Markdown WYSIWYG.
Markor is a TextEditor for Android, versatile, flexible, and lightweight. Markor utilizes simple markup formats like Markdown and todo.txt for note-taking and list management. It is versatile at working with text; it can also be used for keeping bookmarks, copying to clipboard...
Org mode is for keeping notes, maintaining TODO lists, planning projects, and authoring documents with a fast and effective plain-text system.
Collaborative platform for real-time note-taking, documentation, and wikis, featuring offline editing, granular permissions, AI-assisted writing, multiple export formats, user-friendly formatting, scalable team support, customizable templates, and open-source licensing.
Plain text notepad with markdown support and todo list manager for Linux, Mac OS X and Windows, that works together with the notes application of ownCloud.
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It works similarly, but has more features and uses text files so that it can be offline. It's also open-source.