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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.

Download Free Trial

Free trial: 10 conversions with every feature. No credit card required. Windows 10/11.

Your file

Solid CAD

  • STEP
  • IGES
  • BREP

Meshes

  • STL
  • OBJ
  • 3MF
  • PLY
  • glTF
  • GLB
  • FBX
  • DAE
  • X3D
  • OFF
  • AMF

3D faces in drawings and scenes

  • DXF
  • DWG
  • USD
3D CAD Converteropens, previews, converts

What you get

3D printing

  • STL
  • 3MF
  • OBJ
  • PLY

Web, AR and games

  • glTF
  • GLB
  • FBX
  • DAE

Viewers and archives

  • VRML
  • X3D
  • OFF

CAD exchange

  • STEP
  • IGES
  • BREP

Solid CAD (STEP, IGES, BREP) can become a mesh or another solid format. A mesh converts to other meshes. Dashed formats (DXF, DWG, AMF, USD) can be read but not written. VRML reads .wrl, .vrml and gzipped .wrz files and writes .wrl.

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

15+ Formats

STEP (AP203/AP214/AP242), IGES, STL, OBJ, 3MF, glTF/GLB, FBX, VRML, DXF, PLY, BREP, DAE, AMF, X3D, OFF.

Assembly Support

Multi-part STEP assemblies convert with every part in its place, as one merged mesh. The preview lists the parts by name, quantity and size.

Batch Processing

Convert entire project folders. Naming templates with {filename}, {format}, {date} variables.

Metadata & BOM

Preserve part names, colors, materials. Extract metadata to CSV/JSON for Bill of Materials generation.

How It Works

1

Download & Install

Free trial: 10 conversions with every feature. Windows 10/11.

2

Add Your Files

Drag and drop files or entire folders. 15+ 3D formats supported.

3

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

ToolPriceModel
CAD Exchanger$590/yearSubscription (annual renewal)
Spin 3D$30/yearSubscription (annual renewal)
3D CAD Converter$179✔ Pay once, own forever
Download Free Trial Buy Now — $179

Free trial: 10 conversions with every feature. No credit card required. Windows 10/11.