The catalogue
Diagram and document templates
109 templates across 15 categories, every one rendering on your machine, with no account and no diagram uploads. The previews below are the real output, not screenshots.
D3 visualisations30Thirty charts for the views a diagram notation cannot draw.
UML and standard diagrams10Sequence, class, state, ERD, activity: the workhorses.
- ADR · RFC · HLD · Post-mortemArchitecture document templates9ADR, RFC, HLD, post-mortem: the writing around the diagrams.
Enterprise integration pattern diagrams8Routers, splitters, aggregators, dead letters: messaging made legible.
Agentic architecture diagrams8A design framework for agent systems: model them before you build them.
ArchiMate diagrams6Business, application and technology layers: for enterprise architecture.
AWS architecture diagrams6Official AWS icons, rendered offline.
Azure architecture diagrams6Official Azure icons, rendered offline.
Google Cloud architecture diagrams6GKE, Cloud Run, BigQuery: the shapes GCP actually gets used in.
C4 model diagrams5Context, container, component: the four levels, and when to stop.
Kubernetes diagrams5Ingress, workloads, storage and RBAC: the four questions people actually ask.
Office and infrastructure diagrams4Servers, firewalls, users and devices, for the diagram everyone still needs.
Hexagonal architecture diagrams3Ports and adapters, drawn as the shape the pattern is named after.
Threat model diagrams2STRIDE, generated from architecture you already drew.
Application portfolio diagrams1Where the IT spend actually goes.
Render them offline
Every one of these opens in Gnomon with its include paths already right, and renders without a server, a sign-in or a round trip.
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