Modern Harbor Management for the Digital Age
Managing a marina is a surprisingly complex operation. Tenants, boats, berths, contracts, invoices, electricity meters, keys, parking spaces, insurance documents, weather conditions, and water levels — all need to be tracked, billed, and communicated. Most marinas in Germany still rely on a patchwork of spreadsheets, paper contracts, and manual invoicing that creates operational chaos, missed payments, and compliance risks.
Marina Master is a comprehensive SaaS platform designed to digitize every aspect of marina management. From tenant onboarding and AI-powered contract parsing to automated invoicing, WhatsApp Business API integration, and audit-proof revision tracking, it delivers a complete operational backbone for harbor operators. Built with a modern tech stack (Next.js, Fastify, PostgreSQL, Docker) and a Nordic-inspired design language, Marina Master transforms how marinas run their day-to-day operations.
„Upload a paper contract, and AI extracts the tenant, boat, berth, and payment terms. That is the starting point for a fully automated marina operation.“
The Problem
Marina operators face a unique combination of operational, financial, and regulatory challenges:
- Paper-based contracts: Most marinas have years of paper contracts that must be manually transcribed into any new system — a prohibitively time-consuming task
- Manual invoicing: Creating, sending, and tracking invoices for hundreds of berth tenants is error-prone and slow
- No centralized view: Tenant information, boat details, contract terms, payment status, and berth assignments live in disconnected systems
- Communication gaps: Notifying tenants about contract renewals, payment reminders, or marina events requires individual emails or phone calls
- Compliance requirements: German regulatory standards (GoBD) require immutable audit trails for all financial transactions
- No tenant self-service: Tenants cannot view their own contracts, invoices, or documents online
- Multi-marina complexity: Operators managing multiple marinas need consolidated views and cross-marina reporting
The Solution
Marina Master addresses the entire marina management lifecycle through an integrated platform. The core CRUD operations for tenants, contracts, berths, and invoices are already fully operational, with an ambitious roadmap covering AI contract parsing, automated PDF generation, email/WhatsApp integration, and a tenant self-service portal.
A standout feature is the AI-powered contract upload: operators scan or photograph existing paper contracts, upload the PDF, and Claude AI extracts tenant details, boat specifications, berth assignments, and payment terms automatically — creating database records without manual data entry.
Key Features
| Feature | Status | Description |
|---|---|---|
| Tenant Management | Live | Full CRUD with German profiles, boat details, and contact information |
| Contract Management | Live | Create, view, edit contracts with boat and berth associations |
| Berth Management | Live | 120+ berths across sections (A, B, C, D) with dimensions and status tracking |
| Invoice Management | Live | Generate invoices with payment status tracking (paid, outstanding, overdue) |
| Multi-Marina Support | Live | Database architecture supports multiple marinas per organization |
| User Roles | Live | Role-based access: ORG_ADMIN, SUPER_ADMIN with JWT authentication |
| Document Management | Live | Paperless-NGX integration for document storage and categorization |
| Audit System | Live | Immutable audit logs with revision history, change diffs, and compliance reports (GoBD/SOX/GDPR) |
| WhatsApp Integration | Live | WhatsApp Business Cloud API with 7 templates, rate limiting, conversation threading, and webhook support |
| AI Contract Parsing | Roadmap | Upload PDF contracts and auto-create tenant/berth/contract records using Claude AI |
| PDF Generation | Roadmap | Generate professional PDF contracts, invoices, and data sheets |
| Dashboard & KPIs | Roadmap | Visual analytics with charts, occupancy rates, revenue tracking |
Conclusion
Marina Master represents a comprehensive approach to marina digitization — not just moving paper to screen, but fundamentally automating the workflows that consume marina operators‘ time. The combination of AI-powered contract parsing, automated WhatsApp communication, audit-proof financial tracking, and a modern responsive interface creates a platform that can transform marina operations from day one. With multi-marina support, role-based access, and Docker-based deployment, it scales from a single harbor to a regional marina network. For harbor operators looking to modernize, Marina Master provides the foundation for a fully digital, compliant, and efficient operation.