Sphaire

Sphaire is a browser-native AI-assisted parametric CAD studio that runs its geometry engine in the browser. Describe a part in plain English, start from a primitive, or import an existing model (GLB, GLTF, OBJ, STL), then edit, inspect, materialize, validate and export it from one workspace. Unlike image-only 3D generation, the engineering path produces executable construction code and real geometry through OpenCascade or Replicad; Babylon.js renders the scene, deterministic checks review common manufacturability concerns, and optional AI providers help generate and visually review results.

Capabilities in the README's highlights table include natural-language creation with parametric and organic routing, direct modeling (select, move, rotate, scale, resize, and edit mesh components), materials with color, metallic and roughness, image textures and optional AI materials, inspectable construction code that can be viewed and rebuilt, geometry validation with FDM, SLA and CNC-oriented DFM checks, and export into downstream 3D and manufacturing tools. AI generation uses a server-configured OpenAI-compatible API with a bring-your-own key, or local Ollama; an API key is optional for manual modeling.

The README warns that Sphaire is experimental engineering software and to always inspect geometry and run the appropriate professional checks. It runs on Node.js 20 or newer; the quickstart clones the repo (whose git history names it shaire-web-V2-beta), installs with npm, and opens localhost:3000.