Lightweight open-source Gantt chart tool, enough for small and mid-sized project plans.
Open sourceEasy to use
Free alternative to
Code activity
- Stars
- 1,119
- Forks
- 348
- Open issues & PRs
- 484
- Last commit
- today
- Latest release
- 2 years ago
Details
- Type
- Open source
- License
- GPL-3.0
- Written in
- JavaKotlinXSLTSCSS
- Platforms
- Windows · Mac · Linux
- Ease of use
- Easy to use

Pros
- Easy to use, imports and exports MS Project files
Cons
- Limited resource and cost features
Use GanttProject instead of
Microsoft ProjectLightweight and enough for small projects; imports and exports MS Project files.
How is the 64/100 "Health" score calculated?
Dorabot computes it weekly from public GitHub data; it is not a review of software quality: 40 points for code freshness (a commit in the last 30 days earns full points), 25 points for popularity by stars, 20 points for a recent release, 15 points for the ratio of open issues to stars. 80+ is Good, 60–79 Fair, below 60 Weak.
FAQ
Is GanttProject free?
Yes. GanttProject is open source (GPL-3.0 license) and free for personal and commercial use.
Which platforms does GanttProject run on?
GanttProject is available for Windows, Mac and Linux.
What can I use GanttProject instead of?
GanttProject is a free alternative to Microsoft Project.
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