3D CAD Batch Converter — Convert STEP, IGES, STL, OBJ, and 15+ 3D Formats

All the 3D Formats You Need

Convert between STEP (AP203, AP214, AP242), IGES, STL (ASCII & binary), OBJ (with MTL), 3MF, VRML, DXF (3D), PLY, BREP, glTF/GLB, FBX, Collada (DAE), AMF, X3D, and OFF.

STEP IGES STL OBJ 3MF VRML DXF PLY BREP glTF FBX DAE AMF X3D OFF

Professional 3D Conversion Tools

Everything you need to convert, repair, and prepare 3D models for manufacturing, printing, visualization, and archival — in batch.

Batch Format Conversion

Convert entire folders between any supported format. STEP to STL for 3D printing, IGES to STEP for CAD exchange, OBJ to 3MF for additive manufacturing. Drag-and-drop folders, set output format, click Convert. File naming templates with variables ({filename}, {format}, {date}).

Mesh Repair & Optimization

Automatic mesh healing fixes non-manifold edges, self-intersections, degenerate faces, and open holes. Reduce polygon count while preserving shape accuracy. Remove duplicate vertices and unreferenced geometry. Essential for preparing models for 3D printing — catch errors before they waste filament and machine time.

Unit & Coordinate System Conversion

Convert between mm, cm, inches, meters, and feet automatically during import. Fix axis orientation mismatches (Y-up to Z-up, left-hand to right-hand). Critical for multi-vendor CAD exchange where one team uses millimeters and another uses inches — a single wrong unit can ruin a $50,000 CNC run.

3D Preview & Inspection

Built-in 3D viewer with GPU-accelerated rendering. Inspect models before and after conversion. Wireframe, solid, and X-ray display modes. Measure distances, angles, and bounding boxes. Verify conversion quality without opening your CAD software.

Tessellation Control

Fine-tune STEP/IGES to mesh conversion with adjustable chord deviation, angular deflection, and maximum edge length. Preview tessellation quality in real-time. Low-poly output for web/game assets, high-poly for precision manufacturing. Quality presets: Draft, Standard, Fine, Ultra.

Metadata & Property Preservation

Preserve part names, colors, materials, and assembly structure during conversion. Extract metadata to CSV/JSON for BOM (Bill of Materials) generation. STEP AP214 product data, IGES entity labels, and STL solid names are all preserved where formats support them.

CLI & Automation

Full command-line interface for scripting batch conversions. Watched folder mode monitors an input directory and auto-converts incoming files. Profile files store conversion presets. JSON output for pipeline integration. Exit codes for CI/CD. Perfect for automated manufacturing workflows.

Assembly Support

Convert multi-part STEP and IGES assemblies preserving the part hierarchy. Export as a single merged mesh or individual parts in separate files. Assembly tree visualization shows all components with their transformations. Supports nested assemblies and external references.

Built-In Workflows for Every Industry

Pre-configured conversion pipelines tuned for specific industries and use cases. One click, production-ready output.

3D Printing / Additive Manufacturing

STEP/IGES to STL/3MF with mesh repair and unit conversion (mm). Process entire job queues in batch. Tessellation presets from Draft to Ultra Fine for optimal print quality.

CNC & Manufacturing

STEP/IGES to STL/OBJ/STEP with unit conversion and coordinate system alignment. Mesh repair ensures clean geometry for CNC workflows. Batch convert entire project folders.

Multi-Vendor CAD Exchange

Convert between vendor-neutral formats (STEP AP203/AP214) and native mesh formats. Fix unit mismatches, axis orientation, and assembly structure. Eliminate file-translation bottlenecks between engineering teams.

Web & Real-Time 3D

STEP/OBJ to glTF/GLB with tessellation control for web and game engines. Prepare CAD models for web configurators, AR experiences, and real-time 3D. Batch pipeline with CLI automation.

Archival & Documentation

Convert legacy formats to modern standards. IGES to STEP AP242 for long-term archival. Batch convert entire file libraries with consistent settings and naming conventions.

How 3D CAD Batch Converter Compares

See how we stack up against CAD Exchanger, TransMagic, and Glovius.

Feature	CAD Exchanger ($590/yr)	TransMagic ($2,000+)	Glovius (subscription)	3D CAD Batch Converter
Batch conversion	Limited	✔	✘	✔
Mesh repair	✔	✔	✘	✔
Unit conversion	✔	✔	✘	✔
3D preview	✔	✔	✔	✔
CLI automation	✔	✘	✘	✔
Tessellation control	✔	Limited	✘	✔
Assembly support	✔	✔	✔	✔
Fully offline	✔	✔	✔	✔
Cost	$590/yr	$2,000+	Subscription	One-time

How It Works

Add Your Files

Drop 3D files or entire folders. 3D CAD Batch Converter reads STEP, IGES, STL, OBJ, 3MF, glTF, and 15+ formats.

Configure

Choose output format, tessellation quality, unit system, and mesh repair options. Save presets for repeated jobs. Chain multiple operations in a pipeline.

Convert

Hit Start. Batch processing handles entire folders with per-file progress and ETA. Export individual parts or merged assemblies.

CLI & MCP Server

Automatice la conversión de formatos 3D desde scripts, pipelines CI/CD o agentes de IA. CLI y servidor MCP incluidos con cada licencia.

Comandos CLI

Comando	Descripción
`cadconvert convert`	Convertir un archivo 3D individual con opciones de formato, calidad, unidad y reparación
`cadconvert batch`	Conversión por lotes de un directorio con procesamiento paralelo y selección de formato
`cadconvert info`	Inspeccionar un archivo 3D — formato, conteo de vértices/caras, caja delimitadora, unidades, estructura de ensamblaje
`cadconvert formats`	Listar todos los formatos de entrada y salida compatibles
`cadconvert watch`	Vigilar una carpeta y convertir automáticamente los nuevos archivos a medida que llegan
`cadconvert register`	Activar su clave de licencia
`cadconvert serve`	Iniciar el servidor MCP para integración de agentes de IA (transporte stdio)

# Convertir STEP a STL con teselación fina
cadconvert convert model.step --format stl --quality fine

# Conversión por lotes con reparación de malla y conversión de unidades
cadconvert batch ./models --format obj --repair --units mm

# Inspeccionar un archivo 3D
cadconvert info assembly.step --json

# Vigilar carpeta para nuevos archivos
cadconvert watch ./incoming --format 3mf -o ./converted

MCP Server — Integración de agentes de IA

Ejecute cadconvert serve para iniciar un servidor Model Context Protocol. Los agentes de IA como Claude pueden entonces convertir, inspeccionar y consultar archivos 3D mediante lenguaje natural.

Herramienta MCP	Descripción
`convert_cad`	Convertir un archivo 3D entre todos los formatos compatibles con opciones de calidad, unidad y reparación
`get_file_info`	Obtener información detallada del archivo — formato, vértices, caras, caja delimitadora, unidades, árbol de ensamblaje
`detect_format`	Detectar el formato de un archivo 3D sin análisis completo
`list_formats`	Listar todos los formatos de entrada y salida compatibles con sus capacidades

// claude_desktop_config.json
{
  "mcpServers": {
    "cadconvert": {
      "command": "cadconvert",
      "args": ["serve"]
    }
  }
}

Claude Code Agent Skills

Instale el skill de conversión CAD para que Claude Code use su CLI directamente. Describa lo que desea en inglés — Claude conoce todos los comandos, formatos y opciones.

# Instalar el skill
claude skill install github:brunojanvier77/ContentaSoft/skills/contenta-cad

Una vez instalado, pida a Claude: "Convert all STEP files in D:\CAD to STL with fine tessellation and mm units"

Frequently Asked Questions

Is this a CAD Exchanger alternative?▼

Yes. 3D CAD Batch Converter provides the same core functionality — batch conversion between STEP, IGES, STL, OBJ, and 15+ formats with mesh repair, tessellation control, and assembly support — as a one-time purchase instead of CAD Exchanger's $590/year subscription.

What 3D formats are supported?▼

STEP (AP203, AP214, AP242), IGES, STL (ASCII & binary), OBJ (with MTL materials), 3MF, VRML, DXF (3D), PLY, BREP, glTF/GLB, FBX, Collada (DAE), AMF, X3D, and OFF.

Can it repair meshes?▼

Yes — automatic mesh healing fixes non-manifold edges, self-intersections, degenerate faces, open holes, and duplicate vertices. Essential for preparing models for 3D printing.

Does it preserve assembly structure?▼

Yes — multi-part STEP and IGES assemblies are converted with full part hierarchy preserved. You can export as a single merged mesh or as individual parts in separate files.

Does it handle units?▼

Yes — auto-converts between mm, cm, inches, meters, and feet. Also fixes axis orientation mismatches (Y-up to Z-up, left-hand to right-hand coordinate systems).

Does it require CAD software?▼

No — 3D CAD Batch Converter is fully standalone. No AutoCAD, SolidWorks, Fusion 360, or other CAD license is needed. It includes its own 3D viewer for inspecting models.

Is there a CLI?▼

Yes — full command-line interface for scripting batch conversions. Watched folder mode auto-converts incoming files. Profile files store conversion presets. JSON output and exit codes for CI/CD pipeline integration.

Does it work offline?▼

Yes — 100% offline. No cloud processing, no internet connection required, no file uploads. Your intellectual property stays on your machine.

How much will it cost?▼

One-time purchase — no subscription. All features are included. Sign up to be notified when we launch and get early-bird pricing.

Comience a convertir sus archivos 3D hoy

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Batch Convert STEP, IGES, STL, OBJ & 15+ 3D Formats