Convert IGES to OBJ
Convert a IGES file to OBJ in your browser. Free, no upload, no sign-up.
Convert IGES files to OBJ directly in your browser. The converter reads the exact IGES geometry with the OpenCascade CAD kernel running in WebAssembly, tessellates it at the quality you choose and writes a OBJ file. Nothing is uploaded, there is no file size limit beyond your computer's memory, and the result downloads instantly. OBJ keeps groups and UV coordinates and opens in every modelling tool, which makes it a good format for editing or texturing a model.
How to convert IGES to OBJ
- 1Drop your IGES file
Drag a .iges file onto the box above or click to choose one. Surfaces are sewn and tessellated with OpenCascade. Files with gaps between surfaces may produce open meshes that need repair before printing.
- 2Pick the mesh quality
Fine gives smoother curves and a larger file, coarse keeps large assemblies light. The default suits most 3D printing jobs.
- 3Check the preview
The model renders in 3D so you can confirm it loaded correctly. Dimensions, volume and triangle count are shown next to it; open edges are flagged if the mesh is not watertight.
- 4Download the OBJ
Adjust the export options if needed and click download. A .mtl material file is not generated; the exported OBJ contains geometry, normals and UVs only.
What is a IGES file?
IGES is the CAD exchange format that preceded STEP, dating back to 1980. It stores surfaces and curves rather than solids, so files often need stitching before they can be used. It is still common in tooling and older supplier archives.
Commonly used by: legacy CAD, mold and tooling shops, surfacing workflows
Surfaces are sewn and tessellated with OpenCascade. Files with gaps between surfaces may produce open meshes that need repair before printing.
What is a OBJ file?
OBJ is a plain-text mesh format from Wavefront. It stores vertices, normals, UV texture coordinates and face definitions, and references materials through a companion .mtl file. It is human-readable and supported by virtually every 3D modelling application.
Commonly used by: Blender, Maya, ZBrush, game engines, photogrammetry tools
OBJ keeps groups and UV coordinates and opens in every modelling tool, which makes it a good format for editing or texturing a model.
IGES vs OBJ
| IGES | OBJ | |
|---|---|---|
| Full name | Initial Graphics Exchange Specification | Wavefront OBJ |
| Encoding | Text | Text |
| Geometry type | Exact (B-rep / curves) | Triangle mesh |
| Colors | Yes | No |
| Textures | No | Yes |
| Materials | No | Yes |
| Stores units | Yes | No |
| Multiple objects | Yes | Yes |
| Typical use | legacy CAD, mold and tooling shops, surfacing workflows | Blender, Maya, ZBrush |