GanttProject vs OpenProject
We give GanttProject and OpenProject the same GPA: 3.4 out of 4.0. GanttProject grades higher on value for money and the free plan. OpenProject grades higher on features and platforms. They get the same grade on ease of use.
Price, platforms and features side by side. The table says where each price was read and when.
GanttProject
Free, open-source desktop Gantt chart app for Windows, macOS and Linux
OpenProject
Open-source project management for classic and agile teams
How we grade them
| 3.4GPAGanttProjectVery good | 3.4GPAOpenProjectVery good | |
|---|---|---|
| Value for money | AThe desktop app is free with every feature, commercial use included. The optional Cloud service is €1 per active team member a month, and members who are idle that month aren't charged. You can pay from $5 for the download to fund development, but it's the same app. | BCloud Basic is $7.25 a user a month billed yearly, or $8.50 monthly, about typical for this category, with a 5-user minimum. The steps up come with bigger minimums: Professional is $13.50 from 25 users and Premium $19.50 from 100. |
| Free plan and trial | AThe whole desktop app is free and open source under GPL3, with nothing held back. The vendor says the paid and free downloads are identical. Cloud gives new sign-ups 2 free credits with no credit card required. | BFree only if you host it. The Community edition has no user minimum and includes Gantt charts, agile boards, Scrum backlogs, time tracking, wiki and meetings, with community support only. There's no free cloud plan, just a 14-day trial of the Enterprise cloud. |
| Features | BTasks with dependencies and milestones on a Gantt chart, a PERT chart, a resource load chart, baselines and cost calculation. It reads MPX, MPP and MSPDI files from Microsoft Project. The vendor says it isn't built to match every high-end feature of Project, and team sharing is an add-on. | AWork packages on Gantt charts with relations and automatic or manual scheduling. Kanban boards, a product backlog, sprint boards and burndown charts. Time and costs tracked against budgets, meeting agendas linked to the work, and a wiki. Most of that is in the free edition. |
| Ease of use | BThere's no App Store rating on record for it, so a B is as high as we go. It's an app you download and run, it works offline, and your data stays on your own computer. It moves slowly, though: stable release 3.3 came out in January 2024. | BThere's no App Store rating on record for it, so a B is as high as we go. The paid cloud is hosted for you in the EU. The free edition is a server job: DEB or RPM packages, Docker, Kubernetes or Helm charts on Linux. |
| Platforms and integrations | BWindows, macOS and Linux, so every kind of desktop is covered. But there's no web or mobile version. Its connections are file exchange with Microsoft Project and Excel, and export to PDF, HTML and PNG. | AWeb, with iPhone and Android apps. The apps are in beta, and the vendor calls them companions to the web application. It connects to Nextcloud, GitHub, GitLab and Excel, with OneDrive, SharePoint and an MCP server from Professional. |
| Best for | free Gantt charts on your own computer | self-hosting classic and agile planning |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: GanttProject and OpenProject. How we grade
Where they differ
- GanttProject starts at €1 per active team member / month for the optional Cloud service; desktop app is free. OpenProject starts at $7.25 per user / month, billed yearly (5-user minimum).
- Only GanttProject lists Windows, macOS and Linux apps.
- Only OpenProject lists a web app.
- Only OpenProject lists iOS and Android apps.
- OpenProject is self-hostable, according to its own site.
- OpenProject also covers wiki, kanban boards, issue tracking and time tracking.
At a glance
| GanttProject | OpenProject | |
|---|---|---|
| Pricing | Free plan | Free plan |
| Starts at | €1 per active team member / month for the optional Cloud service; desktop app is free | $7.25 per user / month, billed yearly (5-user minimum) |
| Free plan | The desktop app is free and open source under GPL3 with every feature; the vendor says unmodified binaries may be used for any purpose, including commercial use, without paying. | Community edition: free and open source, installed on your own servers, with no user minimum and community support only. It is not offered as a hosted cloud plan. |
| Free trial | GanttProject Cloud gives new sign-ups 2 free credits, with no credit card required | 14-day free trial of the Enterprise cloud, or a 14-day trial license for a self-hosted installation |
| Web | ||
| macOS | ||
| Windows | ||
| Linux | ||
| iOS | ||
| Android | ||
| Made by | BarD Software s.r.o. | OpenProject GmbH |
| Price read from | ganttproject.biz | openproject.org |
| Checked | Oct 9, 2026 | Oct 5, 2026 |
Who each one suits
GanttProject
- Small and medium businesses that want Gantt charts at no cost
- Exchanging schedules with people who use Microsoft Project
- Planning offline on Windows, macOS or Linux
OpenProject
- Organizations that want to self-host an open-source project tool
- Teams combining Gantt-based planning with Scrum or Kanban
- Organizations that need their project data hosted in the EU
- Construction teams working with BIM models, through the paid BIM add-on
Worth knowing
GanttProject
- Desktop only: the vendor lists Windows, macOS and Linux apps and no web or mobile version.
- Sharing a project with a team needs WebDAV or GanttProject Cloud, which is billed in euros from prepaid credits with a EUR 10 minimum top-up.
- The vendor says it is not designed to replicate every high-end enterprise feature of Microsoft Project.
- The current stable release, 3.3, came out in January 2024 and was last updated in January 2025; version 3.4 is in beta.
OpenProject
- The free Community edition is self-hosted only. The hosted cloud starts at the paid Basic plan with a 5-user minimum.
- Professional requires at least 25 users and Premium at least 100. On-premises Enterprise plans start at 25 users and a one-year term.
- Single sign-on needs Professional or higher, and SCIM provisioning is limited to the Corporate plan.
- The iOS and Android apps are in beta and described by the vendor as companions to the web application.
Key features
GanttProject
- Gantt chart and task scheduling
- Tasks are arranged in a hierarchy with dependencies and milestones and drawn on a Gantt chart, with an option to generate a PERT chart.
- Resource load chart
- Assign resources to tasks and see how much work each one carries on a separate resource load chart.
- Baselines and cost calculation
- Save baselines to compare the current plan with an earlier one, and calculate the cost of tasks.
- Microsoft Project interoperability
- Reads MPX, MPP and XML/MSPDI files produced by Microsoft Project and exports to XML/MSPDI, so plans can be exchanged with Microsoft Project users.
- Export to PDF, HTML and PNG
- Plans can be exported as PDF, HTML or PNG, and exchanged with Excel and other spreadsheet apps.
- Optional team collaboration
- Projects can be shared over WebDAV, or through GanttProject Cloud, which adds team access management, project locks, update notifications and a history of recent changes.
OpenProject
- Work packages and Gantt charts
- Work is broken into work packages such as tasks, features, phases and milestones, then scheduled on Gantt charts with relations and automatic or manual scheduling.
- Agile boards and Scrum
- Kanban, team, version and subproject boards, a product backlog, sprint boards, story points and burndown charts are all part of the free Community edition.
- Time tracking, costs and budgets
- Time is logged on work packages, unit and labor costs are tracked against budgets, and reports break down spent time and costs.
- Meetings, wiki and documents
- Meeting agendas and minutes link to work packages, and a wiki, forums and collaboratively edited documents hold project information in one place.
- Self-hosting or vendor cloud
- The Community edition installs on your own Linux servers from DEB or RPM packages, Docker, Kubernetes or Helm charts. Enterprise cloud is hosted by OpenProject in the EU.
- Tiered Enterprise add-ons
- Paid plans unlock extra features by tier: the team planner on Basic, single sign-on on Professional, and portfolio and resource management on Premium.
Plans
GanttProject
GanttProject Desktop$0
The full desktop app for Windows, macOS and Linux, free and open source under GPL3.
GanttProject Cloud€1
per active team member / month, paid from prepaid credits
Optional collaboration service, described as in beta. The team owner and members who are idle that month are not charged; a one-person team is free.
Paid download$5+
one-time, buyer chooses the amount from $5
An optional purchase that funds development. The vendor states that paid and free downloads are identical.
OpenProject
CommunityFree
Self-hosted open-source edition with no user minimum: Gantt charts, agile boards, Scrum backlogs, time tracking, wiki and meetings, with community support.
Basic$7.25
per user / month, billed yearly ($8.50 monthly, cloud only)
From 5 users in the cloud or 25 on-premises. Adds the Basic Enterprise add-ons, such as the team planner, baseline comparisons and a custom theme, plus email support.
Professional$13.50
per user / month, billed yearly
Minimum 25 users. Adds single sign-on, OneDrive and SharePoint integration, sharing work packages with external users, the MCP server and phone support.
Premium$19.50
per user / month, billed yearly
Minimum 100 users. Adds portfolio management, resource management, LDAP user and group sync, and remote-hands support.
CorporateCustom
Priced on request and recommended from 250 users. Adds SCIM provisioning, XWiki and openDesk integrations, and a dedicated support engineer.
Ways to pay less
GanttProject
No public discounts listed.
OpenProject
- Annual discount
Yearly billing is $1.25 per user cheaper
Cloud Basic can be billed monthly for an extra $1.25 per user / month, so a one-year subscription costs $7.25 instead of $8.50 per user / month.
- Other savings
Free months on multi-year subscriptions
The pricing calculator lists 5 months free on a 2-year subscription, 8 on 3 years, 11 on 4 years and 15 on 5 years.
- Education
Special rates for educational institutions
OpenProject states that it offers discounted rates for educational institutions. No percentage is published; eligibility is checked by its sales team.
- Nonprofit
Special rates for NGOs
The same pricing page offers discounted rates for NGOs on request, again without a published percentage.
