EventDiagram
- 1Runs onAPI, Web
- 2CostsFree plan · paid from $0.75/mo
- 3Seating plansYes
- 4Floor-plan importYes
- 5Guest-list importYes
- 63D viewYes
- 7Team collaborationshared
Overview
EventDiagram is a web application for making, sharing and coordinating event floor plans and diagrams. Plans use real-world dimensions, with capacity, spacing and square feet per seat recalculated as objects move. A 3D view comes from the same scene as the 2D plan and represents objects at their real heights. Its AI copilot can create or edit a to-scale layout from plain-language requests, with proposed changes left for review and approval. An MCP server and API keys let Claude or other AI tools read and write diagrams. Recipients of share links can view plans in 3D, leave pinned comments and approve a specific version without an account. Seating tools include guest-list imports, table assignments, meal and dietary tracking, and check-in. PDF, image and data exports are available on every plan, though Free exports have a watermark. The maker says private content and copilot prompts are not used to train AI models; Anthropic processes the diagram being edited for a copilot request. EventDiagram says it is not SOC 2 certified today. It offers a free plan; its pricing note lists paid plans from $9/mo. It runs on web and has an API.
Who it is for
It is presented for hotels and venues, event planners, caterers, rental companies, and AV and production teams. Teams that need shared review or guest seating tools may find its collaboration features relevant.
What is good
- Plans reflect real-world dimensions and capacities
- 3D view uses the same scene as the 2D plan
- Share links support comments and version approval without accounts
- Exports are available on every plan
- Guest-list import and attendee check-in
What to know first
- Free exports carry a watermark
- Not SOC 2 certified today
- No free trial
Verdict
EventDiagram pairs measured floor plans with 3D views, sharing and seating workflows. The free plan includes exports but watermarks them, and the maker states that the product is not SOC 2 certified today.
EventDiagram plans and pricing
All plansCompared on event diagramming software
- Free plan
- Yeseventdiagram.com
- Seating plans
- Yeseventdiagram.com
- Floor-plan import
- Yeseventdiagram.com
- Guest-list import
- Yeseventdiagram.com
- 3D view
- Yeseventdiagram.com
- Team collaboration
- sharedeventdiagram.com
Facts
- Product
- EventDiagram is a web application for creating, sharing, and collaborating on event floor plans and diagrams.eventdiagram.com · 29 Sept 2026
- Scale and capacity
- Diagrams use real-world dimensions, and capacity, spacing, and square feet per seat update as objects move.eventdiagram.com · 29 Sept 2026
- 3D walkthrough
- The 3D view is generated from the same scene as the 2D plan and represents objects with their real heights.eventdiagram.com · 29 Sept 2026
- AI copilot
- The AI copilot builds or edits a to-scale layout from plain-language requests, with changes presented for review and approval.eventdiagram.com · 29 Sept 2026
- Integrations
- EventDiagram provides an MCP server and API keys so users’ Claude or other AI tools can read and write diagrams.eventdiagram.com · 29 Sept 2026
- Sharing and approval
- Share-link recipients can view in 3D, leave pinned comments, and approve a specific diagram version without an account.eventdiagram.com · 29 Sept 2026
- Seating
- Users can import guest lists, assign guests to tables, track meals and dietary needs, and check attendees in.eventdiagram.com · 29 Sept 2026
- Exports and data portability
- PDF, image, and data exports are available on every plan, including Free, with a watermark on Free exports.eventdiagram.com · 29 Sept 2026
- Security
- The maker says passwords use salted bcrypt hashes, sessions use signed expiring tokens in HTTP-only cookies, and traffic uses HTTPS.eventdiagram.com · 29 Sept 2026
- Compliance limit
- EventDiagram states that it is not SOC 2 certified today.eventdiagram.com · 29 Sept 2026
- AI data handling
- The maker says private content and copilot prompts are not used to train AI models; the diagram being worked on is processed by Anthropic to fulfill a copilot request.eventdiagram.com · 29 Sept 2026
- Support and training
- The site offers 16 help articles and a 25-minute course of 16 short lessons, and says security questions can be sent directly to the team.eventdiagram.com · 29 Sept 2026
- Intended users
- The product is presented for hotels and venues, corporate and wedding planners, caterers, rental companies, and AV and production teams.eventdiagram.com · 29 Sept 2026
- Maker
- Founder Daniel Pitner identifies himself as a live-event producer in Phoenix, Arizona.eventdiagram.com · 29 Sept 2026
Company
- Headquarters
- Phoenix, Arizona, USAeventdiagram.com · 23 Sept 2026
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Sources
- eventdiagram.com/terms/· checked 29 Sept 2026
- eventdiagram.com· checked 29 Sept 2026
- eventdiagram.com/features/· checked 29 Sept 2026
- eventdiagram.com/security/· checked 29 Sept 2026
- eventdiagram.com/privacy/· checked 29 Sept 2026
- eventdiagram.com/training/· checked 29 Sept 2026
- eventdiagram.com/pricing/· checked 29 Sept 2026
- eventdiagram.com/about/· checked 29 Sept 2026