Best Event Diagramming Software in 2026
Updated
In short: EventDiagram is ranked #1 of 24 as of 7 October 2026, ahead of Eventscript and OnePlan. The best-ranked option with a free plan is Eventscript. The lowest first paid tier on this page is EventDiagram at $0.75/mo.
Event diagramming software is for shaping an event space and coordinating its layout with the people involved. Compare seating plans and guest capacity with floor-plan import and 3D view to see which layout details each option lists. Guest-list import and team collaboration add practical considerations, while free-plan availability and “Paid from” pricing offer cost context. EventDiagram, OnePlan, and SeatPlan.io are among the named options to weigh. Consider which combination of layout tools, guest information, and coordination features fits the event you are planning.
24 event diagramming software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
9 of the 24 here have a free tier you can use, 0 have open-source code on record, and 0 have full bars: free, open, on most of your devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 1 | EventDiagramWeb · API | Two bars | — | 1 of 6 | $0.75/mo | 6.4 | |
| 2 | EventscriptWeb | Two bars | — | 1 of 6 | $76.47/mo | 6.4 | |
| 3 | OnePlanWeb | Two bars | — | 1 of 6 | $75/mo | 6.4 | |
| 4 | SeatChart.ioWeb | Two bars | — | 1 of 6 | $25/mo | 6.4 | |
| 5 | SeatPlan.ioWeb | Two bars | — | 1 of 6 | £2.42/mo | 6.4 | |
| 6 | SeatPlanningWeb | Two bars | — | 1 of 6 | $39/mo | 6.4 | |
| 7 | CventWeb · Android · iPhone | Two bars | — | — | 3 of 6 | — | 5.6 |
| 8 | EventReceptionWeb · Android · iPhone | Two bars | — | — | 3 of 6 | € 47/mo | 5.6 |
| 9 | A Seat AwaitsWeb | One bar | — | — | 1 of 6 | $49/mo | 5.4 |
| 10 | 3D Event DesignerWeb · Windows · Mac · Android · iPhone | Two bars | — | — | 5 of 6 | $14.95/mo | 5.3 |
| 11 | Delphi DiagrammingWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 12 | EventDrawWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 13 | Table-Plan.comWeb · Windows · Mac | Two bars | — | 3 of 6 | $49/mo | 5.2 | |
| 14 | TablePlan.ioWeb | One bar | — | 1 of 6 | $99/mo | 5.2 | |
| 15 | Visrez Floor Plan BuilderWeb · API | One bar | — | 1 of 6 | $25/mo | 5.2 | |
| 16 | Event Floor PlannerWeb | No signal | — | — | 1 of 6 | — | 5.1 |
| 17 | GoodEvent LayoutWeb | No signal | — | — | 1 of 6 | — | 5.1 |
| 18 | Planning PodWeb · Android · iPhone | Two bars | — | — | 3 of 6 | $199,319/mo | 5.1 |
| 19 | InteractivaWeb | One bar | — | — | 1 of 6 | £25/mo | 5.0 |
| 20 | Metis Room PlannerWeb | One bar | — | — | 1 of 6 | £55/mo | 5.0 |
| 21 | E3D PlannerWeb · Android · iPhone | One bar | — | — | 3 of 6 | $16.99/mo | 4.7 |
| 22 | EventFloorPlansWeb | No signal | — | — | 1 of 6 | — | 4.7 |
| 23 | PerfectTablePlanWindows · Mac | No signal | — | — | 2 of 6 | — | 4.7 |
| 24 | PlanurWeb | No signal | — | — | 1 of 6 | — | 4.7 |
Compare all 24 in a table
| # | App | Score | Free plan | From | Free plan | Paid from | Seating plans | Floor-plan import |
|---|---|---|---|---|---|---|---|---|
| 1 | EventDiagram | 6.4 | Free plan | $0.75/mo | Yes | — | Yes | Yes |
| 2 | Eventscript | 6.4 | Free plan | $76.47/mo | Yes | — | Yes | Yes |
| 3 | OnePlan | 6.4 | Free plan | $75/mo | Yes | 75 /user/mo | Yes | Yes |
| 4 | SeatChart.io | 6.4 | Free plan | $25/mo | Yes | — | Yes | Yes |
| 5 | SeatPlan.io | 6.4 | Free plan | £2.42/mo | Yes | — | Yes | Yes |
| 6 | SeatPlanning | 6.4 | Free plan | $39/mo | Yes | — | Yes | Yes |
| 7 | Cvent | 5.6 | No | — | — | — | — | — |
| 8 | EventReception | 5.6 | No | € 47/mo | Yes | — | Yes | Yes |
| 9 | A Seat Awaits | 5.4 | No | $49/mo | No | — | Yes | Yes |
| 10 | 3D Event Designer | 5.3 | No | $14.95/mo | No | 14.95 /user/mo | Yes | Yes |
| 11 | Delphi Diagramming | 5.2 | No | — | — | — | Yes | Yes |
| 12 | EventDraw | 5.2 | No | — | — | — | Yes | Yes |
| 13 | Table-Plan.com | 5.2 | Free plan | $49/mo | Yes | — | Yes | — |
| 14 | TablePlan.io | 5.2 | Free plan | $99/mo | Yes | — | Yes | — |
| 15 | Visrez Floor Plan Builder | 5.2 | Free plan | $25/mo | Yes | — | Yes | — |
| 16 | Event Floor Planner | 5.1 | No | — | Yes | — | Yes | — |
| 17 | GoodEvent Layout | 5.1 | No | — | Yes | — | Yes | — |
| 18 | Planning Pod | 5.1 | No | $199,319/mo | No | — | — | — |
| 19 | Interactiva | 5.0 | No | £25/mo | No | — | Yes | Yes |
| 20 | Metis Room Planner | 5.0 | No | £55/mo | No | — | Yes | Yes |
| 21 | E3D Planner | 4.7 | No | $16.99/mo | No | — | Yes | Yes |
| 22 | EventFloorPlans | 4.7 | No | — | No | — | Yes | — |
| 23 | PerfectTablePlan | 4.7 | No | — | No | — | — | — |
| 24 | Planur | 4.7 | No | — | No | — | — | Yes |
Is your app on this list?
Numbered spots on this list can be sponsored, and a sponsored row is labelled as paid.
Questions about this list
Which event diagramming software is ranked first on Freedom251?
EventDiagram is ranked #1 of 24 with a score of 6.4. Eventscript is second and OnePlan third.
How many of these have a free plan?
9 of the 24 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, EventDiagram has the lowest first paid tier we found: $0.75/mo.
How is this list ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.