OSI-licensed only · self-hostable
Todoist is a proprietary task manager built around quick capture, projects, due dates and recurring tasks. Open-source replacements cover the same ground with apps you can self-host or run locally.
Every tool below is under an OSI-approved licence (AGPL-3.0, MIT or GPL-3.0), checked against its repository. Planka, a popular kanban tool that is sometimes called open source, is listed separately because its licence is not OSI-approved.
Licences checked against each repository on November 7, 2026.
| Tool | Best for | Licence | Runs as |
|---|---|---|---|
| Vikunja | Self-hosted Todoist replacement for teams | AGPL-3.0 | Docker |
| Super Productivity | Planning with time tracking | MIT | Desktop app |
| Tasks.org | Android-first tasks with open sync | GPL-3.0 | Desktop app |
| Taskwarrior | Command-line power users | MIT | Desktop app |
| Planify | Todoist-style app for GNOME with Todoist sync | GPL-3.0 | Desktop app |
| Donetick | Shared household chores and tasks | AGPL-3.0 | Docker |
Best for: Self-hosted Todoist replacement for teams
A self-hosted task manager and project management app with the tagline "The task manager you actually own". A hosted version and a paid Pro tier also exist.
Best for: Planning with time tracking
An advanced todo list app with timeboxing and time tracking, with task import from calendars, Jira, GitHub and others.
Best for: Android-first tasks with open sync
Open-source Android task app that evolved from Astrid, available on Google Play and F-Droid, with a desktop alpha.
Best for: Command-line power users
A command line task list management utility with a large ecosystem of tools, hooks and extensions.
Best for: Todoist-style app for GNOME with Todoist sync
A task manager for GNOME with Todoist, Nextcloud and CalDAV support. Not affiliated with Doist.
Best for: Shared household chores and tasks
An open-source task and chore management app with recurring schedules, subtasks, labels, points and Home Assistant integration.
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| If you need… | Start with |
|---|---|
| Replace Todoist for a team or family | Vikunja |
| Tasks plus time tracking | Super Productivity |
| Android phone first | Tasks.org |
| Terminal workflows | Taskwarrior |
| Keep Todoist but use a native Linux app | Planify |
| Household chores | Donetick |
Public source code, but under licences the Open Source Initiative doesn't approve. Fine to use; read the terms first.
Source code is public and the Community edition can be self-hosted, but the README describes it as fair-code under custom licences, which are not OSI-approved.
Quick answers to common questions
No, Todoist is proprietary, though Doist publishes some client tools.
Vikunja is the closest all-round option, with web and API access under AGPL-3.0.
No. Its code is public but licensed under custom fair-code terms, not an OSI-approved licence.
Some tools offer imports or integrations, but check each project's documentation, and test with a small project first.
Tasks.org is open source under GPL-3.0 and is available on Google Play and F-Droid.
List it on TechLogHub and we'll review it for this page.
