Diagramium vs GanttProject
Diagramium
diagramium.com
GanttProject
ganttproject.bizSide by side
| Figure | Diagramium | GanttProject |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | — |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| Plans published | 2 | 4 |
| Spec score · Gantt Chart Software | 7.7 (#28) | 8.4 (#9) |
| Exports | PNG and SVG exports are available without an account; PDF is also listed in the FAQ as an account-free export, while animated GIF, video, and animated SVG require a free account. | It can generate PERT charts and export to PDF, HTML, PNG, and CSV. |
| Intended users | The About page names developers, product managers, teachers, analysts, and support teams among its intended users. | The maker describes it as best suited to small and medium businesses, including construction, architecture, engineering, pharmaceutical, and media production businesses, and also notes educational use. |
| Purpose | The Gantt chart maker creates project schedules with tasks, dependencies, milestones, progress, a critical-path highlight, and a Today marker. | GanttProject is a local-first desktop project management app with Gantt charts for Windows, macOS, and Linux. |
| Scheduling | Charts can use calendar dates or project days, with Daily, Weekly, and Monthly time-axis scales. | It supports task hierarchies, dependencies, constraints, automatic scheduling, milestones, and project baselines. |
| Support | The About page directs questions and feedback to a sign-in-required contact form or [email protected]. | The Support Portal is the default support channel, and public discussions are encouraged unless a question is confidential. |
Plans
GanttProject
- Free downloadFree
- Paid downloadPrice not published
- GanttProject desktop (free download)Free
- GanttProject desktop (optional paid download)$5, paid once
In their own words
Diagramium
Diagramium is a web-based Gantt chart maker for creating project schedules and presenting them step by step. Charts can include tasks, dependencies, milestones, progress, a highlighted critical path, and a Today marker. Timelines use calendar dates or project days with Daily, Weekly, or Monthly scales. Present mode reveals tasks sequentially and can add AI voice narration, subtitles, and speaker notes for each step. After loading, the browser editor works offline. Charts remain in browser storage and exported files; the privacy policy says content is not uploaded, no cookies are set, and no third-party analytics are used. PNG, SVG, and PDF exports do not require an account. Animated GIF, video, and animated SVG exports require a free Google sign-in account. Clearing site data can permanently delete unexported local charts.
GanttProject
GanttProject has no write-up on Specifiction yet; its figures are above.