ArchLang Playground

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These links put this plan, its full source inside the share link, in the chat host's URL, so the host's servers receive it, and the host may send it as your first message straight away. Copy link keeps the plan after the #, which your browser never sends to any server. A plan too long for a URL is copied instead, for you to paste.

Open in Claude ↗ Open in ChatGPT ↗

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Docs ↗ Spec GitHub ArchCanvas ↗

ArchLang Playground — write floor plans, compile them in your browser

ArchLang is an open-source (MIT) DSL for floor plans. Write .arch source in the editor below and it compiles in your browser to a dimensioned SVG plan — no install, no account. The same source also compiles to DXF, PDF and PNG from the command line.

Guide · Language reference · One-page spec · 27 example plans · npm · GitHub

The editor compiles in the browser, so it needs JavaScript. Without it, the language is documented in full at archlang.uk/reference, every example plan is published as a static page under /examples/, and the same compiler runs offline from the command line via npm.

SOURCE.ARCH

ready

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Brief (intent JSON)

Write the brief down as data, then gate the plan on it — the same contract arch validate --intent and arch score --brief use.

ArchLang Playground — write floor plans, compile them in your browser

SOURCE.ARCH

ready Preview Describe Lint Intent

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