Free CAD tools

CAD tools that never upload your files.

Each tool runs the Caddis engine inside your browser, the same engine as the Caddis viewer on web and iPhone. Your drawings stay on your computer. No account, no watermark, no limits.

Universal CAD converterDWG and DXF to DXF R12, PDF, SVG or PNG. STEP, STL, OBJ, PLY, IFC and SolidWorks to STL, OBJ, PLY or GLB.DWG version checkerSee which AutoCAD version saved a DWG and which AutoCAD releases can open it. Also reads DXF, STEP and IFC headers.

Drawing conversions

DWG to DXF
DWG to PDF
DWG to SVG
DWG to PNG
DXF to PDF
DXF to SVG
DXF to PNG
DXF to R12 DXF

3D model conversions

STEP to STL
STEP to OBJ
STEP to GLB
STL to OBJ
OBJ to STL
STL to GLB
PLY to STL
IFC to OBJ
IFC to GLB
SLDPRT to STL

Why everything runs in your browser

Most online converters upload your file to a server. Caddis compiles its CAD engine to WebAssembly, so the conversion runs on your own device. It's faster for large files, works on confidential drawings, and doesn't depend on someone else's queue.