Convert IGS to glTF
Convert a IGS file to glTF in your browser. Free, no upload, no sign-up.
Convert IGS files to glTF directly in your browser. The converter reads the exact IGS geometry with the OpenCascade CAD kernel running in WebAssembly, tessellates it at the quality you choose and writes a glTF file. Nothing is uploaded, there is no file size limit beyond your computer's memory, and the result downloads instantly. glTF gives you a readable JSON scene that is easy to inspect, diff or post-process in a build pipeline.
How to convert IGS to glTF
- 1Drop your IGS file
Drag a .igs file onto the box above or click to choose one. Surfaces are sewn and tessellated with OpenCascade in the browser.
- 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 glTF
Adjust the export options if needed and click download. Buffers are embedded in the JSON as base64, so the output is a single file.
What is a IGS file?
.igs is the short extension for an IGES file. The content is identical to .iges: curves and surfaces from a CAD system, without the solid topology that STEP provides.
Commonly used by: legacy CAD, supplier archives
Surfaces are sewn and tessellated with OpenCascade in the browser.
What is a glTF file?
glTF is the JSON form of the same Khronos standard as GLB. The .gltf file describes the scene as readable JSON; binary buffers and textures may be embedded as base64 or kept as separate files. It is convenient when you want to inspect or edit the scene description by hand.
Commonly used by: web developers, Babylon.js / three.js, Blender, Unity and Unreal importers
glTF gives you a readable JSON scene that is easy to inspect, diff or post-process in a build pipeline.
IGS vs glTF
| IGS | glTF | |
|---|---|---|
| Full name | IGES file (.igs extension) | GL Transmission Format |
| Encoding | Text | Text |
| Geometry type | Exact (B-rep / curves) | Triangle mesh |
| Colors | Yes | Yes |
| Textures | No | Yes |
| Materials | No | Yes |
| Stores units | Yes | Yes |
| Multiple objects | Yes | Yes |
| Typical use | legacy CAD, supplier archives | web developers, Babylon.js / three.js, Blender |