9 Open-Source ClickUp Alternatives Worth Comparing in 2026
By
Alexander Gran
Founder & Editor
Updated: July 2026. This comparison is based on official documentation and public repositories as of July 2026. Self-hosting requirements and managed cloud pricing change — verify current details at each project’s official site before committing.
Self-hosting a project management tool means taking on the operational responsibility that a SaaS vendor normally handles: server maintenance, updates, backups, security patches, and uptime. That’s the right tradeoff for some teams — particularly those with data residency requirements, strong privacy policies, or the technical capacity to run infrastructure. For others, it creates more problems than it solves.
Before evaluating open-source ClickUp alternatives, decide honestly whether your team can commit to running a server long-term. The tools below are worth comparing only if the answer is yes, or if you’re evaluating cloud-hosted versions of the same open-source projects. Teams looking for self-hosted collaboration tools beyond project management — whiteboards, diagramming, visual workspaces — can also compare open-source Miro alternatives.
Plane
Plane is the most direct open-source alternative to ClickUp’s project management layer. It covers issues, cycles (sprints), modules (epics), and pages (documentation) in one tool, with a clean interface that tracks more closely to Linear’s design philosophy than ClickUp’s feature-dense approach. GitHub integration is solid.
Plane is available as a self-hosted Docker deployment or as a managed cloud service. The self-hosted version is actively maintained. For teams that already use a Jira-style issue tracker and want to move to something faster and self-hostable, Plane is the most mature option in this list.
Limitations: Plane’s reporting and portfolio management features are lighter than ClickUp’s. It doesn’t have ClickUp’s whiteboard integration or document editor comparable to Notion. It’s a project and issue tracker, not an all-in-one workspace.
OpenProject
OpenProject is the heavyweight open-source project management tool. It covers traditional waterfall and Gantt-based project planning, time tracking, cost reporting, agile boards, and a full wiki. It’s used in enterprise contexts and has been developed for over a decade. German-made, GDPR-compliant by architecture.
The interface is dated compared to modern SaaS tools. Setup and configuration require more effort than Plane. It’s best suited for teams running formal project management with timeline-based planning and resource tracking — not Kanban-first agile teams who want a lightweight tool.
Available as self-hosted (free Community Edition) or a paid hosted cloud plan.
Focalboard / Mattermost Boards
Focalboard is an open-source personal and team task management tool. The standalone version provides Kanban, table, and gallery views for task tracking. It’s now integrated as Boards within Mattermost, Mattermost’s open-source team communication platform.
For teams already using or evaluating Mattermost as a Slack alternative, Boards provides task management without adding another tool. Standalone, Focalboard is simpler than Plane — a straightforward Kanban and table view without the full project management depth of Plane or OpenProject.
Leantime
Leantime positions itself as a project management tool for non-project managers, with a focus on product strategy and idea management alongside standard task tracking. It includes a research and ideas module, strategy canvases, and retrospectives alongside its Kanban and list views.
If the main reason you’re looking at ClickUp alternatives is that ClickUp feels like task management without enough strategic context, Leantime’s product strategy features are worth evaluating. It’s less mature and less widely used than Plane or OpenProject, but it covers a different use case.
Vikunja
Vikunja is a lightweight open-source to-do and project management tool. It’s simpler than Plane — focused on lists, Gantt, and Kanban without the full project management feature set. It’s self-hostable via Docker and has a clean API for integration.
Best suited for small teams or individuals who want task management in their own infrastructure without the complexity of a full project management platform.
AFFiNE
AFFiNE extends open-source project management by combining docs, databases, and an infinite visual canvas in one workspace. You can plan projects on a whiteboard, convert sticky notes into database entries, and write documentation alongside your task lists — all in the same tool. The self-hosting path uses Docker and is well documented.
AFFiNE doesn’t compete with Plane on pure project management depth — there’s no native sprint management or GitHub issue sync. Its strength is the unified workspace model: if your ClickUp frustration is that it separates whiteboards, docs, and tasks rather than integrating them, AFFiNE is a direct answer to that problem. For a deeper look at AFFiNE’s feature set, see the AFFiNE vs. AppFlowy vs. Anytype comparison.
Taiga
Taiga is a mature open-source project management platform that covers Scrum, Kanban, and issues. It has been in active development since 2014 and supports user stories, sprints, epics, and wiki pages. The interface is cleaner than OpenProject while being more feature-complete than Vikunja.
Taiga is available as a self-hosted Docker deployment or as a managed cloud service. It’s worth evaluating for teams that need structured agile project management in an open-source tool.
What self-hosting actually requires
A Docker-based deployment of any of these tools typically means: a Linux server or VPS (most tools recommend 2GB+ RAM), a working Docker and Docker Compose installation, a domain name and SSL certificate for HTTPS, an SMTP server for email notifications, and someone responsible for monitoring, updates, and backups long-term.
If no one on your team can commit to that ongoing responsibility, the managed cloud plans for Plane, OpenProject, or Taiga are worth pricing against ClickUp. You get the open-source software without the infrastructure burden.
The practical decision
For most small teams evaluating self-hosted ClickUp alternatives: start with Plane if you want a modern agile issue tracker, OpenProject if you need waterfall and timeline-based planning, or AFFiNE if the goal is docs and visual planning alongside task management. Verify the current self-hosting documentation before committing — active maintenance varies across projects.