If you’re looking for a self-hosted, open-source project management and task tracking system, there are several excellent alternatives to OpenProject and Redmine, each with different strengths (UI, Agile support, extensibility, ease of deployment, etc.).

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✅ Top Open Source Self-Hosted Project Management Tools

Tool Name	Best For	Key Tech	UI Quality	Agile/Kanban	Notes
🔧 OpenProject	Enterprise-level PM, Gantt charts, teams	Ruby	★★★★☆	🟢 Good	GDPR-focused, strong WBS, timelines
🐛 Redmine	Bug tracking + project wiki	Ruby	★★★☆☆	🟡 Plugin	Classic, reliable, plugin-rich
✅ Taiga	Agile teams, Kanban + Scrum	Python	★★★★☆	🟢 Excellent	Beautiful UI, lightweight, API-first
🧠 Focalboard	Trello-style task boards (from Mattermost)	Go	★★★★☆	🟢 Excellent	Self-hostable Trello/Notion hybrid
📊 Wekan	Simple Kanban boards	Node.js	★★★☆☆	🟢 Yes	Lightweight, Trello clone
🗂️ Kanboard	Developer-oriented Kanban	PHP	★★★☆☆	🟢 Yes	Focused, minimalist, no DB required
🚀 Plane.so (new)	Startups & product teams	Next.js	★★★★★	🟢 Excellent	Beautiful UI, modern, in active dev
📅 Taskcafe	Task & project tracking (lightweight)	React+Go	★★★★☆	🟢 Kanban	Early stage but fast and clean UI
🧩 Phabricator (deprecated)	Code + task + wiki suite	PHP	★★★☆☆	🟡 Minimal	Powerful but now discontinued
📋 GitLab Issues	Git-native projects	Ruby	★★★★☆	🟢 Good	Part of full GitLab platform

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🏆 Top Recommendations by Use Case

Use Case	Recommended Tool	Why?
👨‍💻 Agile (Scrum, Kanban)	Taiga, Plane.so	Beautiful UI, sprint tracking, backlog, API-first
📊 Classic PM with Gantt/WBS	OpenProject	Strong project hierarchy, charts, timelines
🛠️ Developer & bug tracking	Redmine, GitLab	Strong issue system, version control integration
✅ Kanban-style task boards	Focalboard, Wekan, Kanboard	Lightweight, easy setup
🧑‍🤝‍🧑 Team collaboration (Wiki, Chat)	Mattermost + Focalboard, OpenProject	Built-in wikis, discussion tools

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💻 Deployment Notes

Tool	Docker Support	Database Options	Deployment Difficulty
OpenProject	✅ Yes	PostgreSQL	🟠 Moderate
Redmine	✅ Yes	MySQL/PostgreSQL/SQLite	🟡 Easy
Taiga	✅ Yes	PostgreSQL	🟠 Moderate
Focalboard	✅ Yes	SQLite, PostgreSQL	🟢 Easy
Plane.so	✅ Yes	PostgreSQL	🟢 Easy (1-command)

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🔥 Best All-Around Choices (2026)

Priority	Tool	Why
👁️ Modern UI + Agile	Plane.so	Fast, sleek, in active development
🧠 Wiki + PM + Gantt	OpenProject	Best for structured project planning
🛠️ Developer-Centric	Redmine	Proven, extensible with plugins
🏗️ Minimal + Fast	Kanboard	No DB needed, very efficient
✅ Trello Alternative	Focalboard	Lightweight & open source Notion/Trello

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Great question — and critical for commercial projects. Here’s a filtered list of project/task management tools that are:

✅ Self-hosted
✅ 100% open source
✅ Permissively licensed (can be modified, rebranded, and resold commercially without fees)

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✅ Best 100% Open Source, Self-Hosted Project Management Tools for Commercial Use (Resell-Friendly)

Tool	License	Commercial Use Allowed	Self-Hosted	Notes
Redmine	GNU GPL v2	✅ Yes (must retain license terms)	✅ Yes	Can rebrand/resell if you follow GPL rules
OpenProject	GNU GPL v3	✅ Yes (copyleft applies)	✅ Yes	Enterprise version exists — but community edition is fully open
Taiga	AGPL v3	✅ Yes (server code must remain open if redistributed)	✅ Yes	Powerful Agile tool, AGPL has strict conditions
Focalboard	MIT	✅ Yes (fully permissive)	✅ Yes	You can rebrand, resell — no obligation to open source
Kanboard	MIT	✅ Yes	✅ Yes	Very light, safe to rebrand/sell fully
Wekan	MIT	✅ Yes	✅ Yes	Safe to use for SaaS or embedded use
Taskcafe	MIT	✅ Yes	✅ Yes	Lightweight, early stage but 100% open
Plane.so	AGPL v3	✅ Yes with AGPL compliance	✅ Yes	UI is great; AGPL = must share source if hosting for clients

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🔐 Summary: Licensing Types (Commercial Reselling Perspective)

License	Commercial Use	Rebranding Allowed	Closed-Source SaaS?
MIT	✅ Easy	✅ Yes	✅ Yes
GPLv2/v3	✅ Yes, but must provide source	✅ Yes	❌ Can’t hide code if distributed
AGPLv3	✅ Yes, but stricter	✅ Yes	❌ Must share code if hosted
Apache 2.0	✅ Yes	✅ Yes	✅ Yes (rare in PM tools)

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🏆 Best Picks for Resale as Branded Commercial Product

Scenario	Best Tool	Why
✔️ Want to fully rebrand & sell closed-source SaaS	Focalboard, Kanboard, Taskcafe, Wekan	MIT license = full freedom
✔️ Can follow AGPL (share source)	Taiga, Plane.so	Great modern UI, but AGPL needs compliance
✔️ Willing to contribute back (GPL-friendly)	Redmine, OpenProject	Trusted, enterprise-grade

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⚠️ Tools to Be Careful With (for Resale)

Tool	Why Be Cautious
Jira, ClickUp, Asana	Not open source at all — no resale allowed
Trello (free version)	Proprietary, even if embeddable
Phabricator	Abandoned + unclear future
OpenProject Enterprise	Paid license (but Community Edition is fine)

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✅ Recommendation

If you want to resell a white-labeled project management solution, your safest choices are:

🔹 MIT-Licensed Tools (Full Commercial Freedom)

• ✅ Focalboard (Notion-like)
• ✅ Wekan (Trello-like)
• ✅ Kanboard (Kanban with plugins)
• ✅ Taskcafe (lightweight but modern)

You can:

• Host it for clients (SaaS)
• Customize UI/UX
• Sell it under your brand
• Keep your changes private (no need to open source)

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Would you like:

• A ready-to-use docker-compose.yml for any of these?
• Help customizing logos/branding?
• PDF list of all tools with licensing notes for legal review?

Let me know and I’ll generate it.