FigCraft
An installable design editor that opens offline and asks for no account
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Draft Canvas
System diagrams whose connectors caption themselves from the shapes they join
It removes the labelling chore from whiteboarding a system mid-call, then exports to Mermaid, PlantUML, Structurizr or draw.io so the sketch can live in the repo.
Draft Canvas is a diagram editor for system design. Shapes know their type, so linking a service to a queue writes the edge caption for you. It has presets for event-driven, hexagonal, CQRS and saga layouts, a presentation mode that steps through flows, and C4 drill-down. Exports PNG, SVG, Mermaid, PlantUML, Structurizr, draw.io and diffable JSON; agents can edit over MCP. Free, Apache-2.0, no account: browser, Mac and Windows apps, or Docker. By Alvin Cris Tabontabon.
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