Free Gantt Chart Software
GanttProject is free, local-first, open-source project management app with Gantt chart for Windows, macOS and Linux.
- PriceFree (GPL-3.0 open source)
- SubscriptionNot required
- SignupNot required
- Works offlineYes
- PlatformsWindows, macOS, Linux
- MS Project filesImports MPX, MPP, MSPDI; exports MSPDI
Is GanttProject Really Free?
Yes — and it is free in many senses.
GanttProject is free and open-source software, distributed under the GNU General Public License (GPL-3.0). The source code is public on GitHub.
There are no restrictions on the way you use it. No matter if it is used for personal, educational or commercial purposes, No matter how many computers it is installed on and how many people use it. There are no feature gates, no time-limited trials and no usage caps.
GPL License guarantees that you get the source code along with the application. You have the freedom to read, modify and distribute it as you wish. You have the freedom to build and distribute your own modified versions of the application, with the only restriction being that you must also provide the source code for your modified version.
The project is funded by an optional paid download: you can choose to pay for the same binaries to support development, but paying is never required, and the free download contains exactly the same application with all features enabled.
This makes GanttProject genuinely free software, as opposed to a free tier of a commercial service, where the no-cost plan typically exists to convert you into a paying subscriber.
What You Get for Free
Everything below is included in the free download, with no restrictions:
- Gantt chart with task hierarchy, task duration and progress
- Task dependencies and constraints, with automatic scheduling
- Milestones and project baselines for tracking against the plan
- Resource management: assign people to tasks and review their load chart
- Task cost calculation from resource rates
- PERT chart generation for a network view of the project
- Export to PDF, HTML, PNG image and CSV for spreadsheets
- Microsoft Project interoperability: import MPX, MPP and XML/MSPDI files, export to XML/MSPDI
- Offline operation with project files stored locally on your computer
- Native builds for Windows, macOS and Linux
Free Software vs. Freemium
Most "free Gantt chart" offers on the web are free plans of subscription services. GanttProject works differently. A side-by-side look:
| GanttProject | Typical free SaaS plan* | |
|---|---|---|
| Subscription required | No | Often, once you outgrow the free tier |
| Account / signup | No | Usually yes |
| Project limits | None | Often limited |
| User / team size limits | None | Often limited |
| Works offline | Yes | Usually no |
| Open source | Yes (GPL-3.0) | Usually no |
| Local project files | Yes, on your computer | Usually cloud-only |
| Platforms | Windows, macOS, Linux | Web browser |
| Collaboration | Supported with the help of GanttProject Cloud, our cloud-based collaboration service | Yes |
* Free plans of online project management tools vary and change over time; check the current terms on the vendors' websites. "Usually" reflects the common pattern of free tiers, not a claim about any specific product.
Who Should Use GanttProject?
GanttProject is a good choice if you:
- want traditional Gantt chart scheduling with tasks, dependencies and milestones
- work with tasks measured in days or weeks
- prefer a desktop application over a browser-based service
- need to work offline or keep project files locally
- don't want a recurring subscription or per-user fees
- manage small or medium projects, or plan as an individual or a small team
- need to exchange files with Microsoft Project users
It may not be the best choice if you:
- work with tasks measured in hours or minutes
- primarily want real-time, multi-user editing in a browser
- need project management on a phone or tablet
- require a large catalog of third-party integrations, built-in chat or document management
- manage a large portfolio of interdependent enterprise projects
Frequently Asked Questions
Is GanttProject completely free?
Yes. GanttProject is free and open-source software distributed under the GNU General Public License (GPL-3.0). All features are available at no cost, with no time limits, no trials and no feature gating. An optional paid download is offered for those who want to support development; the paid and free downloads contain the same application.
Does GanttProject have any project limits?
No. GanttProject imposes no limits on the number of projects, tasks, resources or users. Projects are stored as local files on your computer, so you can create as many as your disk can hold.
Can I use GanttProject commercially?
Yes. The GPL license does not impose any restrictions on commercial use. Businesses, consultants, educators and individuals may use GanttProject for any purpose, including managing commercial projects, at no cost.
Does GanttProject work without an internet connection?
Yes. GanttProject is a desktop application that runs fully offline on Windows, macOS and Linux. Project files stay on your computer, and no internet connection is required for everyday work.
Any signup required?
Nope. GanttProject requires no account, registration or email address. Download the installer for Windows, macOS or Linux, run it, and start creating Gantt charts immediately.
Can GanttProject open Microsoft Project files?
Yes. GanttProject imports MPX, MPP and XML (MSPDI) files produced by Microsoft Project, and exports to the XML/MSPDI format, so exchanging files with Microsoft Project users is straightforward, modulo the set of features used.
Is GanttProject available for Mac, Linux and Windows?
Yes. GanttProject provides native installers for Windows (EXE and MSI), macOS (Apple Silicon and Intel DMG images) and Linux (DEB package, AppImage), plus a portable ZIP archive.