Structurizr DSL

Compatible with Structurizr DSL

Workspace-based C4 architecture modelling. Define `softwareSystem`, `container`, `component` and `person` once, then declare multiple `views` (systemContext, container, deployment) over the same model. The canonical way to keep architecture documentation in sync across diagrams.

Templates

Source language

structurizr

Workstation

Studio

Engine id

structurizr

Open in Studio Upstream docs

In the same space

Most users come to Structurizr DSL from Structurizr Cloud or Lucidchart C4. flowss runs this engine in the browser — no install, shareable via URL, exportable to PNG / SVG / PDF / source.

Syntax at a glance

workspace { model { user = person "User"; sys = softwareSystem "X" { web = container "Web App" } user -> web "Uses" } views { container sys { include * autolayout } } }

Paste this in the Studio code pane to see Structurizr DSL render live. The full grammar is at the upstream-docs link above.

Sample templates

All 11 →

architecture

Internet banking system (C4)

Adapted from the canonical Structurizr 'Big Bank plc' example — customers, internet banking system and the mainframe it talks to.

architecture

Multi-tenant SaaS containers

Container-level view of a SaaS product — web app, API, async worker, Postgres, object storage, plus a third-party billing system.

architecture

IoT ingest platform

Edge devices → MQTT broker → ingest → time-series database → dashboards. The classic IoT shape, in C4.

architecture

Structurizr — SaaS container view

Customer-facing SaaS with web, API, queue and DB.

architecture

Structurizr — internet banking

Classic C4 banking system with mobile and web channels.

architecture

Structurizr — IoT telemetry pipeline

Devices → MQTT → stream processor → warehouse.

Engine reference: structurizr · ← Browse all engines · Quick-start guide