Your Client Sent STEP. You Need OBJ. Problem Solved.
Batch convert between any CAD format — STEP, IGES, STL, OBJ, glTF, FBX, and 15+ formats. One tool replaces the format headaches.
Free 30-day trial. No credit card required. Windows 10/11.
The Multi-Vendor CAD Problem
Without 3D CAD Converter
- Open each file individually in expensive CAD software
- Manual export one file at a time
- Lost assembly structure and metadata
- Unit mismatches cause costly manufacturing errors
With 3D CAD Converter
- Batch convert entire folders in one click
- Assembly structure and part names preserved
- Automatic unit conversion (mm ↔ inches ↔ meters)
- No CAD license required — fully standalone
Built for Multi-Vendor CAD Exchange
STEP (AP203/AP214/AP242), IGES, STL, OBJ, 3MF, glTF/GLB, FBX, VRML, DXF, PLY, BREP, DAE, AMF, X3D, OFF.
Multi-part STEP and IGES assemblies convert with full part hierarchy. Export merged or as individual parts.
Convert entire project folders. Naming templates with {filename}, {format}, {date} variables.
Preserve part names, colors, materials. Extract metadata to CSV/JSON for Bill of Materials generation.
How It Works
Download & Install
Free 30-day trial with limitations. Windows 10/11.
Add Your Files
Drag and drop files or entire folders. 15+ 3D formats supported.
Click Convert
Batch processing handles entire folders with progress tracking and ETA.
Flatten an Assembly Into a Single Mesh
Without 3D CAD Converter
A multi-part STEP or IGES assembly arrives as dozens of separate bodies — awkward to load, slow to render, and messy to hand off.
With 3D CAD Converter
Convert the whole assembly to one OBJ, STL or glTF in a single output file. Every component is merged in place, with the correct relative positions, ready to drop into a viewer, slicer or engine.
100% Offline — Your Files Never Leave Your PC
No cloud uploads, no internet required. Your intellectual property stays on your machine. Critical for defense, aerospace, and any business with NDA-protected CAD data.
Stop Paying Annual Subscriptions
| Tool | Price | Model |
|---|---|---|
| CAD Exchanger | Subscription (annual renewal) | |
| Spin 3D | Subscription (annual renewal) | |
| 3D CAD Converter | $179 | ✔ Pay once, own forever |