head to head · open source
OpenProject vs obsidian-tasks
OpenProject has 16,933 GitHub stars, 3,676 forks, 224 open issues and last shipped yesterday. obsidian-tasks has 4,078 stars, 400 forks, 155 open issues and last shipped yesterday. OpenProject leads on adoption by 315% (16,933 vs 4,078 stars). OpenProject is written in Ruby under GPL-3.0; obsidian-tasks is written in TypeScript under MIT. OpenProject has attracted 22% as many forks as stars, obsidian-tasks 10%. OpenProject was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| OpenProject | obsidian-tasks | |
|---|---|---|
| GitHub stars | ★ 17K | ★ 4.1K |
| License | GPL-3.0 | MIT |
| Written in | Ruby | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 3.7K | ⑂ 400 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick OpenProject if
- You weight community size — 17K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches Ruby
- You value the larger contributor base for long-term maintenance
pick obsidian-tasks if
- You want the obsidian-tasks feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and obsidian-tasks fits your workflow better
About OpenProject
OpenProject We empower teams to achieve great things together for the good of society. OpenProject is a web based open source project management software for teams and organizations that require transparency, flexibility, and data sovereignty. Manage projects, portfolios, products, tasks, bugs, agile workflows, roadmaps, and team collaboration in a single platform. OpenProject can be self hosted and is designed for organizations looking for an open source enterprise ready alternative to tools such as Jira, MS Project, Monday, Asana, YouTrack while maintaining full control over their data and infrastructure…
read the full OpenProject overview →
About obsidian-tasks
Obsidian Tasks Task management for the Obsidian knowledge base. User Guide Contributing Guide Roadmap Track tasks across your entire vault. Query them and mark them as done wherever you want. Supports due dates, recurring tasks (repetition), done dates, sub set of checklist items, and filtering. You can toggle the task status in any view or query and it will update the source file. For changes in each release, please check the releases page: Screenshots All screenshots assume the global filter task which is not set by default (see also installation). The theme is default Obsidian theme. The ACME note has some…
read the full obsidian-tasks overview →
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Frequently asked questions
Is OpenProject or obsidian-tasks more popular?
OpenProject has 16,933 GitHub stars and obsidian-tasks has 4,078. OpenProject has the larger community by that measure.
Are OpenProject and obsidian-tasks free?
Both are open source. OpenProject is licensed under GPL-3.0 and obsidian-tasks under MIT. Neither carries a licence fee.
What is the difference between OpenProject and obsidian-tasks?
OpenProject is written in Ruby and obsidian-tasks in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, OpenProject or obsidian-tasks?
Choose OpenProject if you want the larger community (16,933 stars) or its GPL-3.0 licence terms. Choose obsidian-tasks if its feature set, stack or MIT licence fits better. Both are self-hostable.