Best Diagramium Alternatives in 2026
Updated
20 tools from gantt chart software ranked against Diagramium on the same published basis.
- 1Diagramium vs Agantty
- 2Diagramium vs ProjectLibre
- 3Diagramium vs Rillsoft Project
- 4Diagramium vs Ganttic
- 5Diagramium vs GanttPRO
- 6Diagramium vs Ingantt
- 7Diagramium vs Instagantt
- 8Diagramium vs Online Gantt
- 9Diagramium vs Open Planner Studio
- 10Diagramium vs Asta Powerproject
- 11Diagramium vs Sinnaps
- 12Diagramium vs Visual Planning
- 13Diagramium vs OmniPlan
- 14Diagramium vs FastTrack Schedule
- 15Diagramium vs GanttFlow
- 16Diagramium vs GanttProject
- 17Diagramium vs Oracle Primavera Cloud
- 18Diagramium vs GANTT360°
- 19Diagramium vs Ganttile
- 20Diagramium vs GoodGantt
Diagramium alternatives compared
| # | Tool | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Agantty | 7.9 | Free plan | €4.17/mo | Android, iOS, Linux, Mac, Web, Windows |
| 2 | ProjectLibre | 7.5 | Free plan | $9.99/mo | Linux, Mac, Web, Windows |
| 3 | Rillsoft Project | 7.4 | No | — | Linux, self-hosted, Web, Windows |
| 4 | Ganttic | 7.3 | Free plan | $25/mo | Android, API, iOS, Web |
| 5 | GanttPRO | 7.3 | No | $0.58/mo | Android, API, iOS, Linux, Mac, Web, Windows |
| 6 | Ingantt | 7.2 | No | $5.99/mo | Android, iOS, Mac, Web, Windows |
| 7 | Instagantt | 7.1 | Free plan | $10/mo | Web |
| 8 | Online Gantt | 6.9 | Free plan | Free | Web |
| 9 | Open Planner Studio | 6.9 | Free plan | Free | Linux, Mac, Web, Windows |
| 10 | Asta Powerproject | 6.8 | No | £57.92/mo | Android, iOS, Mac, Web, Windows |
| 11 | Sinnaps | 6.8 | Free plan | Free | Android, iOS, self-hosted, Web |
| 12 | Visual Planning | 6.8 | No | $15/mo | Android, iOS, Mac, Web, Windows |
| 13 | OmniPlan | 6.7 | No | $16.67/mo | iOS, Mac |
| 14 | FastTrack Schedule | 6.6 | No | — | Mac, Windows |
| 15 | GanttFlow | 6.6 | Free plan | C$8.25/mo | Web |
| 16 | GanttProject | 6.6 | Free plan | Free | Windows, Mac, Linux |
| 17 | Oracle Primavera Cloud | 6.6 | No | $12/mo | Android, API, iOS, Web |
| 18 | GANTT360° | 6.5 | Free plan | €12/mo | Web |
| 19 | Ganttile | 6.5 | Free plan | Free | Web |
| 20 | GoodGantt | 6.5 | Free plan | $299/mo | Browser |
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Questions about Diagramium alternatives
What is the best alternative to Diagramium?
Agantty, number 1 in gantt chart software with a score of 7.9 out of 10. The others here: ProjectLibre, Rillsoft Project, Ganttic and 16 more.
What is the best free alternative to Diagramium?
Agantty is the best-ranked alternative with a free plan. 12 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked on what each maker publishes, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing.