Open-source freedom for network operations.
Topology you
can trust.
Generate network diagrams from YAML and real infrastructure data. Embed them in documentation or use them for daily operations and monitoring.
Deploy it yourself, or work with us on deployment and integrations. Talk to us
Explore the features
In production
Live traffic overlay — JANOG57 NOC
NOC dashboard — JANOG57
“Replaced static topology diagrams with auto-generated live topology. Used in production for JANOG57 NOC. Streamed on NOC Live.”
NOC BB Team — JANOG57
“Campus network monitoring with Zabbix. Live weathermaps running within a day.”
Infrastructure Team — University NOC
Features
Live weathermap
Traffic utilization on links, color-coded by load
Alert overlay
Active alerts from Zabbix, Prometheus, Grafana on topology
NetBox auto-generation
Devices and cables pulled directly from NetBox
900+ vendor icons
Yamaha, Aruba, AWS, Juniper — correct aspect ratios
Interactive navigation
Pan, zoom, multi-layer drill-down in the browser
Shareable links
Public topology views with a token — no login required
Network discovery
Crawl your network via SNMP + LLDP from a seed device. No inventory required.
Custom layout engine
Purpose-built hierarchical layout engine for network diagrams. No generic graph library.
Integrations
Define topology as code
Auto-discover from DCIM/IPAM
Discover topology via SNMP + LLDP from a seed device
Topology visualization from your infrastructure
Traffic, host status, alerts
SNMP & node exporter metrics
Webhook alerts
Hosts, metrics, and alerts from the Instant On portal
Your own data source
Define topology as code
Auto-discover from DCIM/IPAM
Discover topology via SNMP + LLDP from a seed device
Topology visualization from your infrastructure
Traffic, host status, alerts
SNMP & node exporter metrics
Webhook alerts
Hosts, metrics, and alerts from the Instant On portal
Your own data source
The Shumoku stack
Shumoku is not only a server. It is a set of libraries, renderers, tools, and apps for turning infrastructure data into maps you can operate from.
Core
Models, parsers, layout, themes, plugin types, and shared helpers. The renderer-agnostic foundation used across Shumoku.
Core docs →CLI / npm packages
Render YAML or JSON topology to SVG, interactive HTML, or PNG for Markdown, documentation, CI, and product embedding.
CLI docs →Server
A self-hosted operations app for topology management, live metrics, alert overlays, dashboards, and read-only share links.
Server docs →Editor
A visual design tool for physical topology, devices, modules, cables, project files, BOM, and PoE analysis.
Open Editor →Start using Shumoku
- Deployment and operations support
- Data source integration assistance
- Environment-specific topology and metric mapping
- Custom plugin development and priority work
Around Shumoku
A toast together at the venue.Event report · 2026.09.08
写真で振り返る Shumoku Meetup #1
2026年9月8日、さくらインターネット東京支社で開催したShumoku Meetup #1。受付から登壇、交流までを写真で振り返ります。
Join the community
Questions, events and contributions. Find your way in as a user or a contributor.
FAQ
Is it free?
Shumoku is open source under AGPL-3.0 — free to use, no commercial contract required. We offer paid support, consulting, and custom development for production deployments.
Can AGPL-3.0 be used commercially?
Yes, as long as you follow the AGPL-3.0 terms. Commercial support does not change the software license. If AGPL does not fit your situation, contact us to discuss it.
How is it different from PHP Weathermap?
Shumoku is topology-first: multi-layer navigation, 900+ vendor icons, native data-source plugins, alerts, dashboards, and sharing without requiring Grafana.
Can I use it without monitoring tools?
Yes. Use YAML, NetBox, network scan, or a custom plugin as a standalone topology viewer. Monitoring integrations are optional.
Can I use it without NetBox?
Yes. YAML definitions, SNMP + LLDP network scan, Zabbix LLDP topology, and custom plugins are all supported paths.
What is the difference between Server and Editor?
Server is the self-hosted operations and monitoring app. Editor is the visual design tool for physical topology, devices, modules, cables, BOM, and PoE analysis.
What about commercial support?
Public bug reports, questions, and feature requests are community support on GitHub. Investigating your specific environment, private support with guaranteed response, deadline-bound work, and custom development are commercial — reach us at contact@shumoku.dev. Commercial support is delivered together with our non-exclusive partner TelHi Corporation (輝日株式会社); there is no sole official reseller of Shumoku.
See the commercial support section →