The best open source alternative to Microsoft Planner is AFFiNE. If that doesn't suit you, our users have ranked more than 50 alternatives to Microsoft Planner and 15 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Microsoft Planner are Tasks.org, Taiga.io, ToDoList and Org mode.
Open-source, privacy-focused workspace combining note-taking, project and task management, Kanban board, interactive whiteboard, Pomodoro timer, Markdown support, offline access, real-time team collaboration with @mentions, goal tracking, subtasks, and customizable features.
Tasks is libre open-source software, based on the original source code from the popular Astrid Tasks & To Do List! Tasks is easy-to-use, feature-packed, flexible and customizable, and synchronizes with a variety of services.
Taiga is the easy and intuitive yet powerful agile project management tool for multi-functional teams. Taiga has a best in class Sprint task board, and you can seamlessly migrate to Kanban if needed.
Organize projects with deeply nested tasks, multi-language support, and flexible XML storage. Streamline scheduling, customize printing with stylesheets, and collaborate efficiently on multiple projects, including IT and general GTD use, on Windows or Linux via WINE.
Org mode is for keeping notes, maintaining TODO lists, planning projects, and authoring documents with a fast and effective plain-text system.
Think of Vikunja like the notebook you have with all your things to keep track of. But better.
A simple and easy to use Todo app complete with Material 3 design and support for its dynamic colors as well as Nextcloud integration!.
A privacy friendly, aesthetically pleasing google tasks alternative to do list app, inspired by system-24 theme and windows mobile design system.
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