3D Model Converter
Convert STEP, IGES, BREP, STL and OBJ to STL or OBJ
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Nothing is uploaded — every step runs in your browser.
Convert STEP (.step/.stp), IGES (.iges/.igs) and BREP models exported from SolidWorks, Fusion 360, Inventor or CATIA to STL or OBJ for 3D printing and visualisation, and convert between STL and OBJ. The OpenCascade engine runs in your browser.
How it works
- 1Choose your STEP, IGES, BREP, STL or OBJ file.
- 2Pick the output format and surface accuracy.
- 3Press “3D Model Converter” and download the file.
Frequently asked questions
Is my file uploaded to a server?
No. Everything runs in your browser; your file never leaves your device.
Does it open SLDPRT or Parasolid (X_T) files?
No. Those formats are closed and licensed. Save the part as STEP in SolidWorks and convert it here.
What does accuracy do?
STEP/IGES surfaces are split into triangles. “Fine” is smoother but produces a larger file.