Convert STEP, IGES, STL — Simple and Powerful

Get started with 3D CAD Batch Converter in minutes. Convert between 15+ formats with no CAD software required.

Free 30-day trial · No credit card · Windows 10/11

Download Free Trial

Free 30-day trial. No credit card required. Windows 10/11.

Three Steps to Convert Any 3D File

Download & Install

Download 3D CAD Batch Converter and run the installer. Full features unlocked for 30 days — no credit card required.

Add Your Files

Drag and drop individual files or entire folders. The app reads STEP, IGES, STL, OBJ, 3MF, glTF, FBX, VRML, DXF, PLY, and more.

Click Convert

Choose your output format, set quality and unit options, and click Convert. Batch processing handles hundreds of files with progress tracking.

Format Compatibility

Format	Extensions	Input	Output	Notes
STEP	.step, .stp	✓	✓	ISO 10303 — AP203, AP214, AP242
IGES	.iges, .igs	✓	✓	Legacy CAD exchange standard
STL	.stl	✓	✓	ASCII & binary. Most common for 3D printing
OBJ	.obj	✓	✓	With MTL material files
3MF	.3mf	✓	✓	Multi-color, multi-material. Modern 3D printing format
glTF / GLB	.gltf, .glb	✓	✓	Runtime 3D for web, AR/VR, game engines
FBX	.fbx	✓	✓	Autodesk interchange for game engines
VRML	.wrl	✓	✓	Virtual Reality Modeling Language
DXF	.dxf	✓	✓	3D DXF for CAD/CNC
PLY	.ply	✓	✓	Point cloud and mesh data
BREP	.brep, .brp	✓	✓	OpenCascade native geometry
Collada	.dae	✓	✓	Collada — interchange format

Automate with the Command Line

3D CAD Batch Converter includes a full CLI. Automate conversions in scripts, CI/CD pipelines, or watched-folder workflows.

# Convert a single STEP file to STL
cadconvert convert model.step -f stl --quality fine

# Batch convert a folder
cadconvert batch ./models -f obj --repair --units mm

# Inspect a 3D file
cadconvert info assembly.step

Start Your Free Trial

Download 3D CAD Batch Converter and start converting files in minutes. Full features for 30 days, no credit card required.

Download Free Trial Buy Now — $149

Free 30-day trial. No credit card required. Windows 10/11.