Best Free & Open Source Alternatives to Todoist

tududi is a self-hosted task management application that combines the simplicity of a personal todo list with the power of professional project organization. Built with a clear hierarchical structure, it lets you organize work across areas, projects, tasks, and subtasks — making it suitable for both individual productivity and team collaboration.

Key features include a comprehensive recurring task system with multiple recurrence patterns, project sharing and collaboration, Telegram integration for quick task capture on the go, and a REST API for custom automation. The app is available in 24 languages and includes smart filters (Today, Upcoming, Someday) to help you stay focused.

Like Todoist, tududi offers priority levels, due dates, labels/tags, and project organization. Unlike Todoist, tududi is fully self-hosted — you own your data completely. It runs via Docker with a simple one-command setup and is built with React, Node.js, and TypeScript.

TaskTrove is a self-hostable task management application that gives individuals and teams full control over their productivity data. It supports unlimited tasks and projects with subtasks, tagging, natural language quick-add, and multiple layout views — including list, Kanban board, and calendar — so users can organise work in the way that suits them best.

Built-in features include recurring task automation, a focus timer, powerful search with filtering and sorting, and support for multi-user collaboration on paid plans. The self-hosted deployment is free and keeps all data on your own infrastructure, while a managed hosting option is available for those who prefer not to manage servers.

TaskTrove is designed for privacy-conscious individuals and teams who want a capable project and task management tool without depending on a SaaS vendor or paying ongoing subscription fees for basic functionality.

Donetick is an open-source, self-hosted app for managing tasks and chores together. It handles everything from a simple personal to-do list to shared household chore tracking: create groups, assign tasks to specific people, rotate assignees automatically, and create schedules using natural language — phrases like "take the trash out every Monday and Tuesday at 6:15 pm" automatically become recurring tasks with dates and times.

Beyond basic task management, Donetick includes adaptive scheduling that learns from your completion history, nested subtasks that reset when a recurring task is completed, custom labels and five priority levels, photo attachments on tasks with S3-compatible storage, NFC tags as physical completion triggers, a built-in points system, time tracking, and completion analytics. It exposes a REST API and webhooks for automations and ships an official Home Assistant integration.

Donetick is a self-hosted alternative to paid task managers like Todoist. It runs in Docker with an embedded SQLite database, supports local accounts or OIDC-compatible single sign-on (tested with Keycloak, Authentik, and Authelia), and includes TOTP-based multi-factor authentication. It is licensed under AGPL-3.0.

Mindwtr is a free, open-source to-do app built on the Getting Things Done (GTD) method. It captures every task and idea in seconds into an Inbox, then guides you through a clarify step and shows only the next actions you can actually act on in a Focus view. It implements the full GTD loop — capture, clarify, organize, engage, and reflect — with a guided weekly review wizard.

Mindwtr is local-first: your data lives on your device, with optional sync through iCloud on Apple devices, Dropbox, a shared folder, your own server, or WebDAV. It ships native apps for Windows, macOS, Linux, iPhone, and Android, plus a web app that works offline. Advanced features include projects with sections and areas, contexts with nested matching, Waiting For and Someday/Maybe lists, a calendar, a Kanban board, global search with operators, attachments, markdown notes, and an optional AI assistant that can use your own OpenAI, Gemini, Claude, or a self-hosted model.

Mindwtr is a modern alternative to paid task managers like Todoist and OmniFocus. It is simple by default and keeps advanced options out of the way until you need them. For developers it exposes a local REST API, a CLI, and an MCP server so AI assistants can manage your tasks. It is licensed under AGPL-3.0.

Jotted is a self-hostable web app that combines notes, tasks, and reminders into one place, eliminating the need to run two separate apps. It focuses on simplicity and ease of use without compromising on features.

Core features include a rich text editor with Markdown support and a slash menu, offline support via PWA, push notifications for tasks, full-text search, tags to organize notes and tasks, and dark mode. It ships as a single Docker container and is self-hosting first.

The app is built with Next.js (React) and TypeScript, using better-sqlite3 for storage and BlockNote for the rich text editor. It is new and under active development, so some bugs may still exist.