Best Open Source Project Management Tools in 2026
Why Open Source Project Management?
Asana charges $11/user/month. Monday.com starts at $9/seat. Jira's pricing keeps climbing. For a 20-person team, you're looking at $2,000-$5,000/year just to manage tasks.
Open source project management tools give you the same features — kanban boards, Gantt charts, time tracking, and team collaboration — without the recurring bill. Self-host on your own infrastructure or use a managed instance.
Here are the best options in 2026.
Top Open Source Project Management Tools
Plane
The modern Jira alternative. Plane is the closest open source equivalent to Linear and Jira — built with a clean, fast UI that developers actually enjoy using.
- License: AGPL-3.0
- Tech stack: Next.js, Django, PostgreSQL
- Key features: Issues, cycles (sprints), modules, custom views, pages (docs)
- GitHub stars: 30K+
- Self-hosting: Docker Compose, one-command setup
- Managed option: Plane Cloud (free for up to 5 members)
Best for: Engineering teams who want a modern issue tracker without Jira's complexity.
OpenProject
Enterprise-grade project management. OpenProject is a mature, feature-rich tool that covers the full project lifecycle — from planning to execution to reporting.
- License: GPL-3.0 (Community), proprietary (Enterprise)
- Tech stack: Ruby on Rails, Angular
- Key features: Gantt charts, agile boards, time tracking, budgets, wiki, meetings
- GitHub stars: 9K+
- Self-hosting: Docker, DEB/RPM packages
- Managed option: OpenProject Cloud (from €5.95/user/month)
Best for: Organizations needing formal project management with Gantt charts and resource planning.
Taiga
Built for agile teams. Taiga offers a beautiful, intuitive interface for Scrum and Kanban workflows. It doesn't try to do everything — it does agile really well.
- License: MPL-2.0
- Tech stack: Python (Django), Angular
- Key features: Scrum boards, Kanban, epics, user stories, wiki
- GitHub stars: 13K+
- Self-hosting: Docker
- Managed option: Taiga Cloud (free for up to 5 members)
Best for: Agile teams who want a focused Scrum/Kanban tool without feature bloat.
Leantime
Project management for non-project-managers. Leantime focuses on simplicity and strategic alignment. It includes OKRs, ideation boards, and roadmaps alongside standard task management.
- License: AGPL-3.0
- Tech stack: PHP, MySQL
- Key features: Kanban, timesheets, milestones, OKRs, ideation boards
- GitHub stars: 4K+
- Self-hosting: Docker, traditional LAMP stack
- Managed option: Leantime Cloud (from $8/user/month)
Best for: Small teams and non-technical users who need strategic project alignment.
Focalboard / Mattermost Boards
Trello + Notion alternative. Focalboard (now part of Mattermost) provides a flexible board, table, and calendar view for task management — integrated directly into Mattermost's chat platform.
- License: AGPL-3.0 (standalone), MIT (plugin)
- Tech stack: Go, React, TypeScript
- Key features: Board/table/calendar views, templates, filters, Mattermost integration
- GitHub stars: 21K+
- Self-hosting: Docker, Mattermost plugin
- Managed option: Via Mattermost Cloud
Best for: Teams already using Mattermost, or anyone wanting a Trello/Notion-style tool they can self-host.
Vikunja
The Todoist alternative. Vikunja is a lightweight, self-hosted task manager with list, Kanban, Gantt, and table views. Great for personal use or small teams.
- License: AGPL-3.0
- Tech stack: Go, Vue.js
- Key features: Lists, labels, priorities, reminders, CalDAV sync, API
- GitHub stars: 5K+
- Self-hosting: Docker, single binary
- Managed option: vikunja.cloud (free for personal use)
Best for: Individuals and small teams wanting a self-hosted Todoist/Wunderlist replacement.
Comparison Table
| Tool | Best For | Agile | Gantt | Time Tracking | Docs/Wiki |
|---|---|---|---|---|---|
| Plane | Dev teams | ✅ | ❌ | ❌ | ✅ |
| OpenProject | Enterprise | ✅ | ✅ | ✅ | ✅ |
| Taiga | Scrum teams | ✅ | ❌ | ❌ | ✅ |
| Leantime | Small teams | ✅ | ✅ | ✅ | ❌ |
| Focalboard | Flexible use | ✅ | ❌ | ❌ | ❌ |
| Vikunja | Personal | ✅ | ✅ | ❌ | ❌ |
How to Choose
Need a Jira replacement? Start with Plane. It's the most polished developer experience with modern UI and fast iteration.
Need Gantt charts and resource management? OpenProject is the only OSS tool here with proper project portfolio management.
Pure Scrum/Kanban? Taiga keeps it simple and does agile workflows beautifully.
Want strategic alignment (OKRs)? Leantime bridges the gap between strategy and execution.
Trello-style flexibility? Focalboard gives you boards, tables, and calendars in a lightweight package.
Personal task management? Vikunja is the lightest option — perfect for replacing Todoist.
Self-Hosting Tips
- Start with Docker — Every tool listed offers Docker images. Use Docker Compose for easy setup.
- Set up backups first — Before your team starts using it, configure automated database backups.
- Use a reverse proxy — Nginx or Caddy for HTTPS and domain routing.
- Monitor resources — OpenProject and Plane need 2GB+ RAM. Vikunja runs on 256MB.
- Keep it updated — Security patches matter. Set up automated update notifications.
Conclusion
You don't need to pay per-seat SaaS pricing for great project management. The open source ecosystem in 2026 offers legitimate alternatives for every team size and methodology.
Browse all open source project management alternatives on OSSAlt to see detailed comparisons, deployment guides, and community ratings.