Code→ floor plans

A small declarative language that compiles to professional SVG floor plans — like Typst/LaTeX, but for architecture. Zero-dependency, deterministic, isomorphic.

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Deterministic by design

The same source always compiles to byte-identical output. No clocks, no randomness, no I/O — every loop, conditional, and function call is evaluated while the drawing is built.

Zero-dependency core

The default SVG path pulls no runtime dependencies. Optional power (PNG raster, vector PDF, angled-wall geometry) loads lazily and is never required.

Professional CAD output

Layers, line weights, line types, wall poché hatches, openings that void walls, real fixture symbols, dimensions, north arrow, scale bar, and a title block. Export to SVG, DXF, PDF, or PNG.

Parametric & scriptable

Values, arithmetic, arrays, for/if/while, and pure functions — plus relational placement (right-of / below / …) resolved by deterministic topological arithmetic.

Reads its own plans

Beyond drawing, ArchLang reads a plan back as facts: describe returns rooms, areas, adjacencies, and a modelled access graph; lint flags habitability problems against advisory profiles — image-free, so an AI agent can verify intent without an image.