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.




The best open source alternative to Microsoft Planner is Tasks.org. 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 Taiga.io, ToDoList, Org mode and Vikunja.
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.




Agile project management platform with visual Kanban and Scrum boards, issue and ticket tracking, customizable workflows, dashboard/reporting, time tracking, multilingual support, free and premium SaaS, Open Source, and integrations for team collaboration.




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!.




Operately helps you coordinate goals, projects, and teams without the need for a COO.




A privacy friendly, aesthetically pleasing google tasks alternative to do list app, inspired by system-24 theme and windows mobile design system.




TowDow is an open-source, cross-platform application designed for small and mid-sized teams to manage tasks, projects, and processes in one place. It allows you to create projects, assign tasks, set deadlines, and follow progress in real time across desktop and mobile devices.



