Prompt2CAD

Prompt2CAD is a browser-based AI tool that generates real, dimensionally accurate parametric CAD geometry from natural language descriptions. Unlike typical AI 3D generators that output polygon meshes, Prompt2CAD creates editable models in real-world millimeters, ready for export to STEP, DXF, OBJ, STL, or GLB. It's built for designers, engineers, makers, and interior decorators who need to go from idea to a physical part without learning complex CAD software. The AI writes parametric code, renders live, and self-verifies by taking screenshots from multiple angles, iterating until the geometry matches your prompt. Key features include conversational refinement (e.g., "make it wider" updates the model live), parametric sliders and toggles for dimension adjustment, a curated PBR material library with wood, stone, metal, fabric, and leather textures from Polyhaven and ambientCG, and AI-guided rendering using tools like Nano Banana for accurate image generation. Models can be exported in multiple formats including STEP, DXF, OBJ, STL, GLB, and PNG. The tool also supports use cases like furniture design, mechanical parts, product enclosures, 3D printing, and interior fixtures. What sets Prompt2CAD apart is its hybrid approach: it combines conversational AI with parametric controls, self-verifying AI that checks its own geometry, and photorealistic previews with real-world materials. It runs entirely in the browser with no install required, making it accessible for rapid iteration. Currently in early access, it offers free trial credits with no credit card needed. The platform continues to evolve, with recent community use cases demonstrating workflows for interior design projects like a corner boiler cabinet.