Explore and compare curated open-source alternatives. Filter by platform, licensing, or deployment mode to find your perfect fit.
Habitica replaces standard to-do apps like Remember The Milk by turning daily habits, chores, and checklists into an 8-bit role-playing game.
todo.txt replaces cloud task managers like Todoist with an open plain-text CLI workflow, providing full data ownership and zero-overhead task tracking.
Taskwarrior replaces proprietary task apps like OmniFocus with a local, terminal-native task engine featuring dependency tracking and encrypted sync.
Planify replaces proprietary cloud task managers like Todoist with a native Linux GTK4 to-do app supporting local storage, Nextcloud, and CalDAV syncing.
Tasks.org is an open-source Android task manager replacing Todoist with local storage, CalDAV and Nextcloud sync, geofenced alerts, and zero tracking.
Kanri is an offline personal Kanban desktop app replacing Trello with local JSON storage, custom boards, and zero cloud tracking or account requirements.
Free IDE for Java, Kotlin, Go, TypeScript and Python. Built on IntelliJ Community, fully open source, 300+ plugins.
An open-source todo.txt desktop app that replaces Todoist with private, plain-text task management and zero subscription fees.
Go For It! replaces proprietary task apps with an open-source Linux to-do list and focus timer that stores tasks locally in plain text Todo.txt files.
Agenda is an open-source elementary OS to-do list that replaces Todoist for simple daily tasks, storing entries locally in plain text with zero accounts.