About APImyCAD

APImyCAD.com is a CAD conversion API: you send a file over HTTP, we convert it and send the result straight back. No SDK to install, no desktop software, no licence server. It is built for developers, CAD/CAM tools, quoting platforms and anyone who needs CAD conversion inside their own software.

Who is behind it

APImyCAD is built and operated by Quality Castings BV, a manufacturing company in Lanaken, Belgium. We are not a generic file-conversion site that added CAD as an afterthought — we work with DWG, DXF and 3D models in real production every day, for real parts that get machined and cast.

That is also why this API exists. Converting CAD files reliably, at the moment your software needs it, turned out to be a recurring problem worth solving properly.

How we decide what to ship

Conversion tools vary wildly in quality, and a converter that "produces a file" is not the same as a converter that produces a correct file. We test every conversion against real production drawings before it goes live, and we compare the output against the source.

A concrete example: our first candidate for drawing rendering silently discarded 72 entities from a real drawing — including every spline — which quietly destroyed the isometric view. It never shipped. We replaced it with a renderer that handles the full entity set. We would rather offer fewer conversions than unreliable ones.

What is available today

• DWG → DXF — AutoCAD drawings to the open DXF format
• DWG → SVG / PNG and DXF → SVG / PNG — drawing renders
• 3D mesh conversion — OBJ, FBX, STL, PLY, DAE, GLB, glTF

On the roadmap: DWG to PDF, STEP to STL, and a geometry /analyze endpoint (volume, bounding box, surface area) aimed at instant-quote platforms for 3D printing and CNC.

A note on DWG versions

DWG is a proprietary format, and support depends on the version a file was saved in. Drawings up to roughly AutoCAD 2013 convert very reliably; newer versions can be hit-or-miss. We state this openly rather than let you discover it on your own files. Always check converted output before using it in production.