Best Free & Open Source Alternatives to ClickUp

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.

OpenProject is the leading open-source project management software, empowering teams to achieve great things together. With over a decade of development, it provides a comprehensive suite of tools for planning, scheduling, and tracking projects from start to finish.

OpenProject supports both classic and agile project management, featuring Gantt charts, work packages, sprints, kanban boards, and a built-in wiki. Its time tracking, cost reporting, and budgeting capabilities set it apart from lighter alternatives — making it suitable for enterprises and NGOs managing complex, multi-team projects. The GitHub integration links work packages directly to pull requests for seamless developer workflows.

Available as a self-hosted Community edition (free) or Enterprise cloud/on-premises edition with premium support and add-ons, OpenProject is trusted by organizations worldwide. With features including forums, meeting agendas, bug tracking, and roadmaps, it is one of the most feature-complete open-source alternatives to Jira, Asana, Trello, and Monday.com.

Paca is an AI-native, open-source project management platform designed as a self-hosted alternative to Jira, Trello, ClickUp, and Monday.com. Built for modern Scrum and Kanban teams, Paca enables humans and AI agents to collaborate as equals on the same boards, sprints, and goals. It supports BDD (Behavior-Driven Development), MCP integration, and WASM plugins for full customization. Deploy via Docker or self-host with a PostgreSQL backend.

Plane is a modern, open-source project management platform designed to help teams track issues, manage cycles (sprints), and plan product roadmaps. It is a compelling alternative to Jira, Linear, Monday, and ClickUp — offering a clean, intuitive interface without the typical complexity of project management tools.

At its core, Plane supports work items with a powerful rich text editor, customizable properties, and sub-issues. Teams can organize work into Cycles with built-in burn-down charts, break large projects into manageable Modules, and create custom Views with advanced filters. The Pages feature provides a Notion-like document editor with AI capabilities for capturing ideas and documentation.

Built with TypeScript, React, Python, Django, and PostgreSQL, Plane offers both a free cloud version and a self-hosted option via Docker or Kubernetes. Its analytics dashboard provides real-time insights into project progress, helping teams identify blockers and make data-driven decisions. With a growing community and regular updates, Plane continues to evolve into a comprehensive project management solution.

Focalboard is an open-source, self-hosted project management tool created by the team behind Mattermost. It serves as a direct alternative to Trello, Notion, and Asana, providing a flexible and customizable way to manage tasks, projects, and workflows.

The tool supports multiple views including kanban boards, tables, galleries, and calendars — giving teams the flexibility to visualize their work the way they want. It comes in two editions: a Personal Desktop app for individuals (available on macOS, Windows, and Linux) and a Personal Server for self-hosted team collaboration.

Focalboard features drag-and-drop task management, customizable properties and card templates, markdown support in card descriptions, and a clean, modern interface. Being part of the Mattermost ecosystem, it integrates deeply with Mattermost's messaging platform as the Boards plugin. While development on the standalone version has slowed, the project remains a solid choice for teams seeking a self-hosted project management solution.

Worklog is a local-first desktop project management application designed for small development teams. Built with Svelte and Tauri, it offers a fast, keyboard-first planning experience with a Kanban workflow and zero cloud dependency for core usage.

The app stores all data locally by default, giving teams full control over their project information. It supports Git integration for contextual task management tied to code changes, making it especially useful for developer workflows.

With its lightweight desktop architecture and minimal resource footprint, Worklog is ideal for teams that want a simple, offline-capable project tracker without the complexity or cost of cloud-based tools like Trello, Jira, or Linear.

Leantime is an open source project management system designed for people who do not think in traditional PM terms. It is a popular self-hostable alternative to Asana, Monday.com, and ClickUp for small teams, agencies, and solo founders who need a calmer, neurodivergent-friendly interface.

Leantime combines goals, projects, tasks, kanban boards, gantt charts, timesheets, and idea boards into a single, opinionated workspace. It supports multiple project methodologies, retrospectives, and reporting, and includes a built-in AI assistant to help with planning and writing.

Released under AGPL-3.0 and built on PHP and MySQL, Leantime is well suited to small organisations that want a thoughtful, accessible Asana-style PM tool without per-seat pricing or vendor lock-in.

Windshift is a self-hosted work management platform that combines task tracking, workflow automation, and team collaboration in a single deployable application. Built with Go and Svelte, it offers a lean architecture that runs comfortably on modest hardware, including a Raspberry Pi.

Windshift covers the full lifecycle of team work: configurable workspaces with custom fields, statuses, priorities, and item types; kanban boards with drag, rank, and filter; nested hierarchy to organize work at any depth; milestones for planning and tracking delivery; and dashboards with widgets for every surface. Beyond standard project tracking it ships with built-in test management (cases, runs, results), time tracking with project billing, and an asset management / CMDB module.

Compared to cloud-only tools like Jira, Trello, Asana, and ClickUp, Windshift gives teams full control of their data with a single binary, optional SQLite or PostgreSQL backend, SSO/OIDC, WebAuthn, and integrations for GitHub, Gitea, and Jira project import. It is licensed under AGPL-3.0.

TaskView is a self-hosted project and task management platform designed for small and growing software teams that want full control over their data. It combines projects, tasks, custom Kanban boards, sprints, time tracking, and developer integrations in a single platform you can run on your own infrastructure — without the complexity of enterprise project management systems.

The platform supports flexible workflows with configurable projects, statuses, boards, roles, and permissions, alongside features like task dependencies, recurring tasks, sprints, and Markdown content. Built-in analytics cover team workload, productivity, billable time, and financial reports. Identity is handled through SAML 2.0, OpenID Connect, and SCIM provisioning, with scoped API tokens and fine-grained permissions for integrations.

TaskView integrates with the tools development teams already use — GitHub, GitLab, signed webhooks, and a TypeScript API client — and ships with an MCP server so AI assistants can search, create, and update tasks through a secure token. Web, iOS, and Android clients are available, and the entire product is distributed under the TaskView Source-Available License, which permits self-hosting and internal use.

Devlane is a modern project management platform built for development teams. It organizes work into workspaces and projects, tracks issues with assignees, labels, priorities, and parent/child links, and groups work into time-boxed cycles (sprints) and modules for clearer scope.

The project positions itself as an open-source alternative to Jira, Linear, Monday, ClickUp, and Plane, focusing on a fast, opinionated workflow rather than feature breadth. It includes lightweight docs (pages), rich-text comments powered by TipTap, activity feeds, saved views, and basic analytics for tracking progress.

The backend is written in Go (Gin + GORM) with PostgreSQL, Redis, and optional RabbitMQ and MinIO for queues and object storage. The web UI is a React + Vite + TypeScript single-page app styled with Tailwind CSS. Devlane can be self-hosted via Docker or run from source, though it requires more infrastructure than lightweight alternatives (PostgreSQL and Redis are mandatory, with RabbitMQ and MinIO for full functionality).

A note on licensing: Devlane is released under a custom Devlane Software License, MIT-style use and modification rights, but selling the software or offering it as a hosted service to third parties is prohibited. This makes the codebase source-available rather than OSI-approved open source.