Docusnap vs Open Network Diagram

Docusnap inventories IT infrastructure and uses that data to produce documentation, network maps, and reports. Its scope includes IT asset management, permission analysis, license management, and security analysis. The locally installed product discovers infrastructure without installing agents on target systems; Docusnap365 is a cloud service with automatic updates and a REST interface. Integration options include export and import functions, a bidirectional REST API, an MCP interface, Zapier, and CSV and Excel imports. Docusnap365 provides a structural foundation for ISO 27001, NIS2, DORA, and BSI IT-Grundschutz, but does not certify or conduct audits. The maker says Docusnap is GDPR compliant and ISO 27001 certified; Docusnap365 is hosted in Europe, and its AI model is hosted in the EU without data transfer to external AI providers. Listed annual prices start at €465.00 per year for Docusnap and Docusnap365; Docusnap 15 costs €1,499.00 per year and includes all modules. Trials are available for 30 days for the locally installed product and 14 days for Docusnap365.

Open Network Diagram is a free, self-hosted tool for visualizing and managing home lab and network architecture. It provides network, Hosts & VMs, and rack views for mapping topology and inventory, including subnets, VLANs, virtual machines and rack positions. Connections can record cable type, colour and length. Its IPAM panel reports subnet utilization, detects duplicate addresses and suggests the next free IP. The application keeps JSON as its source of truth; self-hosted changes autosave, writes are persisted atomically, and rolling backups retain the last five files. Deployment is Docker-first, with writable data volumes and Docker Compose support. The runtime exposes GET and PUT operations at /api/network-data, and published Docker images support AMD64 and 64-bit ARM, including Raspberry Pi systems. The project is licensed under GNU GPL v3 and has no runtime dependency on external APIs. It does not include authentication or TLS. The project warns that topology details may expose sensitive infrastructure information and advises restricting access or using an authenticated TLS-terminating reverse proxy.