Best Open Source Alternatives to Todoist

Compare the best free and open-source alternatives to Todoist — self-hosted and desktop replacements you fully control, ranked by GitHub stars, license and platform support.

Curated by open-source.store · Updated November 2026 · 10 alternatives

Todoist

Proprietary SaaS

PricingFreemium

Platformsweb, desktop, windows, macos, linux, mobile, ios, android

WebsiteVisit site

Todoist alternatives compared

Open-source alternatives to Todoist, compared by stars, license and platform
Tool		License	Platforms	Self-hosted
Habitica	14,289	GPL-3.0	WebDockeriosandroid	Yes	Oct 2026	Visit
todo.txt	6,198	GPL-3.0	LinuxmacOSWindows	No	Nov 2026	Visit
Taskwarrior	6,148	MIT	LinuxmacOSWindows	No	Nov 2026	Visit
Planify	5,782	GPL-3.0	Linux	No	Oct 2026	Visit
Tasks.org	5,711	GPL-3.0	android	No	Nov 2026	Visit
sleek	2,053	MIT	LinuxmacOSWindows	No	Oct 2026	Visit
Freeter	1,029	GPL-3.0	LinuxmacOSWindows	No	May 2026	Visit
Operately	615	Apache-2.0	DockerLinux	Yes	Nov 2026	Visit
Go For It!	153	GPL-3.0	Linux	No	Sep 2026	Visit
Agenda	103	GPL-3.0	Linux	No	May 2026	Visit

Top open-source Todoist alternatives

Habitica14,289GPL-3.0

Habitica replaces standard to-do apps like Remember The Milk by turning daily habits, chores, and checklists into an 8-bit role-playing game.

WebDockeriosandroidLinux

vs Todoist: a free, open-source option you fully control, licensed GPL-3.0.

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todo.txt6,198GPL-3.0

todo.txt replaces cloud task managers like Todoist with an open plain-text CLI workflow, providing full data ownership and zero-overhead task tracking.

LinuxmacOSWindows

vs Todoist: a free, open-source option you fully control, licensed GPL-3.0.

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Taskwarrior6,148MIT

Taskwarrior replaces proprietary task apps like OmniFocus with a local, terminal-native task engine featuring dependency tracking and encrypted sync.

LinuxmacOSWindows

vs Todoist: a free, open-source option you fully control, licensed MIT.

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Planify5,782GPL-3.0

Planify replaces proprietary cloud task managers like Todoist with a native Linux GTK4 to-do app supporting local storage, Nextcloud, and CalDAV syncing.

Linux

vs Todoist: a free, open-source option you fully control, licensed GPL-3.0.

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Tasks.org5,711GPL-3.0

Tasks.org is an open-source Android task manager replacing Todoist with local storage, CalDAV and Nextcloud sync, geofenced alerts, and zero tracking.

android

vs Todoist: a free, open-source option you fully control, licensed GPL-3.0.

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Best Open Source Alternatives to Todoist

Todoist

Todoist alternatives compared

Top open-source Todoist alternatives

The modern standard for Protobuf workflows

Mentoring for backend developers. Consulting for startups.

More alternatives to Todoist

sleek

Freeter

Operately

Go For It!

Agenda