Best Gantt Chart Software in 2026
Updated
47 gantt chart software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
47ranked
0free plans on this page
$49.95/molowest paid tier
7 Oct 2026last checked
Gantt Chart Software, one module each. A lit port is something its maker publishes; 0 of the 22 on this page have a public API.
- 26 GanttFlow API not on recordOSS not on recordFREE not on recordDOCS 5.1
- 27 Ganttile API not on recordOSS not on recordFREE not on recordDOCS 5.1
- 28 TIEMCHART API not on recordOSS not on recordFREE not on recordDOCS 5.1
- 29 ConceptDraw PROJECT API not on recordOSS not on recordFREE not on recordDOCS 5.0
- 30 GoodGantt API not on recordOSS not on recordFREE not on recordDOCS 5.0
- 31 Online Gantt API not on recordOSS not on recordFREE not on recordDOCS 5.0
- 32 Primavera P6 Professional API not on recordOSS not on recordFREE not on recordDOCS 5.0
- 33 TaskJuggler API not on recordOSS not on recordFREE not on recordDOCS 5.0
- 34 Tom's Planner API not on recordOSS not on recordFREE not on recordDOCS 5.0
- 35 Diagramium API not on recordOSS not on recordFREE not on recordDOCS 4.9
- 36 Gantt Chart Maker API not on recordOSS not on recordFREE not on recordDOCS 4.9
- 37 Ganttology API not on recordOSS not on recordFREE not on recordDOCS 4.9
- 38 gantts.app API not on recordOSS not on recordFREE not on recordDOCS 4.9
- 39 GanttTool API not on recordOSS not on recordFREE not on recordDOCS 4.9
- 40 Highcharts Gantt API not on recordOSS not on recordFREE not on recordDOCS 4.9$73/mo
- 41 WBS Schedule Pro API not on recordOSS not on recordFREE not on recordDOCS 4.9
- 42 Merlin Project API not on recordOSS not on recordFREE not on recordDOCS 4.8
- 43 Oracle Property Manager API not on recordOSS not on recordFREE not on recordDOCS 4.8
- 44 OrgBusiness Gantt Chart API not on recordOSS not on recordFREE not on recordDOCS 4.8$49.95/mo
- 45 PriMus KRONO API not on recordOSS not on recordFREE not on recordDOCS 4.8
- 46 Project Plan 365 API not on recordOSS not on recordFREE not on recordDOCS 4.8
- 47 RationalPlan API not on recordOSS not on recordFREE not on recordDOCS 4.7
Compare all 22 in a table
| # | Platform | Score | Free plan | From | Free plan | Paid from | Task dependencies | Milestones |
|---|---|---|---|---|---|---|---|---|
| 26 | GanttFlow | 5.1 | No | — | Yes | — | Yes | Yes |
| 27 | Ganttile | 5.1 | No | — | Yes | — | Yes | Yes |
| 28 | TIEMCHART | 5.1 | No | — | — | — | Yes | Yes |
| 29 | ConceptDraw PROJECT | 5.0 | No | — | No | — | Yes | Yes |
| 30 | GoodGantt | 5.0 | No | — | Yes | 2.99 /user/mo | Yes | Yes |
| 31 | Online Gantt | 5.0 | No | — | Yes | — | Yes | Yes |
| 32 | Primavera P6 Professional | 5.0 | No | — | — | — | — | — |
| 33 | TaskJuggler | 5.0 | No | — | Yes | — | — | — |
| 34 | Tom's Planner | 5.0 | No | — | Yes | — | Yes | Yes |
| 35 | Diagramium | 4.9 | No | — | Yes | — | Yes | Yes |
| 36 | Gantt Chart Maker | 4.9 | No | — | Yes | — | Yes | Yes |
| 37 | Ganttology | 4.9 | No | — | Yes | — | Yes | Yes |
| 38 | gantts.app | 4.9 | No | — | Yes | — | Yes | Yes |
| 39 | GanttTool | 4.9 | No | — | Yes | — | Yes | Yes |
| 40 | Highcharts Gantt | 4.9 | No | $73/mo | No | — | Yes | Yes |
| 41 | WBS Schedule Pro | 4.9 | No | — | No | — | Yes | — |
| 42 | Merlin Project | 4.8 | No | — | No | 22.99 /user/mo | — | — |
| 43 | Oracle Property Manager | 4.8 | No | — | No | — | — | — |
| 44 | OrgBusiness Gantt Chart | 4.8 | No | $49.95/mo | No | — | Yes | — |
| 45 | PriMus KRONO | 4.8 | No | — | No | — | — | — |
| 46 | Project Plan 365 | 4.8 | No | — | No | 9.99 /user/mo | — | — |
| 47 | RationalPlan | 4.7 | No | — | No | — | — | — |
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