puml2c4

puml2c4 is a PlantUML C4 to LikeC4 transpiler (v0.2.0, early stage, pre-1.0). It converts existing PlantUML C4 diagrams into the LikeC4 DSL format, enabling interactive visualizations with drill-down and auto-layout. Supports persons, systems, containers, components, boundaries, deployment nodes, and relationships with standard PlantUML C4 syntax. Unlike manual conversion, puml2c4 automates the migration of PlantUML-based architecture diagrams to LikeC4 without rewriting. Currently supports Node.js >=18 and is distributed as an npm package with TypeScript type declarations. Release cadence is irregular; users should expect breaking changes until 1.0.