Upload a photo of any room. Claude Vision identifies every major piece of furniture and estimates dimensions. Drag and drop onto a 2D floor plan. Toggle 3D preview with orbit controls. Pure HTML/CSS/JS — no backend, no install, bring your own Anthropic API key.
Upload a room photo. Claude Vision identifies every major furniture piece, guesses its common name, and estimates width and depth in feet. Drops the list straight into your inventory.
Grid-snap drag-and-drop. Snap to 0.5ft. Rotate pieces 90°. Clamp inside room bounds. Everything the fast-feedback version of "will this sofa fit" needs.
One-click switch to a Three.js scene. Orbit controls. Soft shadows. Per-piece height heuristic (beds short, bookshelves tall, rugs flat).
Save the current plan as a JSON file (room + items + placed pieces) or export 2D / 3D snapshots as PNG. Take it to IKEA or the contractor.
Pure HTML/CSS/JS, no backend. Paste your Anthropic API key in the sidebar (kept in browser memory only); or run entirely without AI and add furniture manually.
Uses dangercorn-claude-helper (dcch) browser client for retry-with-backoff, cost tracking, and JSON mode with code-fence stripping.
Hosted plans are early-access. Self-host today; email tim@dangercorn.net to join the waitlist.
roomcraft is one of 220+ verticals scaffolded from the same template. Each gets a working skeleton for free; individual ones get promoted to full products as demand surfaces.
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