Seat'd
A full-stack, multi-tenant digital seating chart and event CAD ecosystem — replacing rigid paper seating posters with interactive visual table assignments, Claude 3.5 AI floor plan digitization, and zero-friction mobile guest check-ins.
Services Provided
Full-Stack Dev · CAD · AI · Cloud Infra
Timeline
10 Weeks // Delivered 2025
Client Industry
Event Tech & Hospitality
The Context
From Static Posters to Dynamic Spatial Intelligence
The Problem
Weddings, galas, and corporate banquets have historically depended on rigid printed seating posters, foam boards, and manual escort cards. These physical artifacts are expensive to produce, impossible to edit when last-minute RSVP shifts occur, and create catastrophic congestion at entrance doors as hundreds of guests crowd around a single board.
Once inside, guests have no spatial orientation to locate their assigned table in massive ballrooms, requiring manual intervention from venue coordinators.
The Solution
We engineered Seat'd as an end-to-end digital ecosystem. Event organizers gain a visual CAD workspace with real-time drag-and-drop seating, family grouping, and AI blueprint digitization via Claude 3.5 Sonnet.
For guests, a zero-friction mobile web application allows instant QR lookup, predictive search autocomplete, party check-in, and an interactive floor plan with their specific table pulsing with an animated beacon glow.
Drag-and-Drop Seating Studio & Family Grouping
Organizers manage table cards with dynamic seating capacity limits (e.g. 10/10, 8/10), instant over-capacity warnings, seat occupant lists, and global reset controls. An unassigned guest sidebar supports real-time filtering, multi-mode sorting (import order, A–Z, and family groupings F1–Fx), and bulk drag-and-drop assignment.
Proprietary Vector CAD Floor Plan Editor & Claude 3.5 AI
Built directly in vanilla JavaScript, the 2D CAD editor delivers a 50-operation undo/redo history stack, marquee multi-selection, and tools to place and style architectural elements: banquet tables, dance floors, bars, stages, cake tables, and restrooms. An asynchronous Netlify background function dispatches blueprint photos to Claude 3.5 Sonnet to synthesize clean vector SVG code automatically.
The Three-Step Mobile Guest Journey
Zero native app downloads or account logins required. Guests scan the venue QR code on arrival and complete their lookup, party check-in, and table localization in seconds.
Instant Name Autocomplete
Guests enter their event passcode and begin typing their name. Debounced Supabase RPCs perform sub-millisecond autocompletion.
Table & 1-Tap Group Check-In
Prominently reveals Table 1, resolves linked family party members, and allows checking in the entire group with a single tap.
Pulsing Table Map & Companions
Renders the interactive SVG floor plan with Table 1 highlighted in a pulsing golden glow, accompanied by a companion roster.
Setup Wizardry & Live Attendee Operations
From initial event provisioning through live day-of attendee management and caterer Excel downloads.
Event Setup Wizard
Organizers configure event titles, dates, customizable guest passcodes, table counts, seats-per-table quotas, and guest ingestion options in a streamlined 3-step onboarding flow.
Live Attendee Directory
Real-time attendee table tracking check-in state (CHECKED IN vs. PENDING), assigned family tags, single-click manual guest additions, and one-click caterer arrangement exports.
Interactive Gallery
Full Application Showcase
Click on any interface screenshot to inspect high-resolution details, CAD tooling, and mobile responsive layouts.
Organizer SuiteLaunch Panel & Operations Hub
Real-time attendance stats, live floor plan preview, and entrance QR code generator.
Organizer SuiteVisual Seating Studio
Drag-and-drop table assignments with dynamic capacity warnings and family tags (F1–F15).
CAD EngineVector Floor Plan CAD Editor
In-house 2D SVG canvas with 50-step undo/redo, custom venue elements, and table sizing.
Organizer SuiteLive Guest Directory & Attendee Tracking
Searchable guest roster with family groupings, check-in status toggles, and Excel export.
Organizer SuiteEvent Setup Wizard & Passcode Gate
Configures event titles, dates, randomized guest passcodes, table counts, and capacities.
Mobile Web AppMobile Guest Search Autocomplete
Zero-friction debounced predictive search querying Supabase RPCs with zero app install.
Mobile Web AppMobile Seating Result & Group Check-In
Displays assigned table, resolves linked family members, and enables 1-tap party check-ins.
Mobile Web AppMobile Floor Plan Beacon & Companions
Interactive SVG venue floor plan highlighting the guest's table with companion guest list.
Engineering Rigor
Full-Stack Cloud Architecture
Seat'd was architected to handle high concurrency during event arrival spikes while maintaining zero operational maintenance for venue hosts.
Supabase PostgreSQL & RLS
Strict Row Level Security (RLS) isolating tenant organizations with SECURITY DEFINER triggers and debounced RPCs.
Realtime WebSocket Sync
Instant bi-directional attendance updates between guest mobile check-ins and the organizer operations dashboard.
Claude 3.5 Sonnet Background AI
Asynchronous floor plan blueprint processing that converts venue photos into interactive vector SVG maps.
HMAC Cryptographic Webhooks
Secure Stripe credit fulfillment with audit logging and replay attack prevention.
Technical Overview
System Benchmarks
Zero-Friction Adoption
0 App Store downloads required — instant mobile web execution
<0ms
WebSocket Sync
0
Undo/Redo Depth
RLS
Multi-Tenant Isolation
“Seat'd transformed how our couples and event planners coordinate seating. Eliminating paper poster chaos and giving guests an instant, glowing floor plan map on their phone has completely elevated the arrival experience.”
Seat'd Product Team
Seat'd Technologies
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