Add your IGS file
Drop one or more .igs files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
IGS to GLB
Converting .igs CAD geometry to .glb triangulates exact engineering surfaces into a mesh that printers and viewers understand. Free, private, and validated — the file never leaves your browser.
100% private for supported formats
Runs on your deviceConvert supported files
Drop IGS files here
Batch files can each use a different output. Nothing uploads for local conversions.
Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.About converting IGES model to glTF binary mesh
Converting .igs CAD geometry to .glb triangulates exact engineering surfaces into a mesh that printers and viewers understand. An .igs file contains IGES CAD data under the abbreviated extension that early file systems, limited to three characters, forced on the format. Nothing but the name differs from .iges: the same punch-card-style text encodes the same curves, surfaces, and drawing entities.
A .glb file is the binary packaging of glTF 2.0: JSON scene description, mesh buffers, and optional textures packed into one little-endian container with a fixed header and typed chunks. It is the usual way to ship a self-contained realtime 3D asset without sidecar .bin files. For this route the practical draw is single-file, widely supported realtime mesh container and efficient binary buffers with predictable alignment — balanced against scene graph, materials, and animations are richer than many converters preserve, which is worth knowing before you commit a large batch.
Why convert IGS to GLB?
The practical trigger for this conversion is usually a mismatch: with .igs, two spellings for one format regularly confuse file filters and format lists. Switching to .glb buys you single-file, widely supported realtime mesh container, which is why it is the better fit for publishing web and AR models that must load from one file. Because the conversion runs locally, trying it costs nothing but a few seconds of compute on your own machine.
IGS vs GLB at a glance
| Aspect | IGES model (.igs) | glTF binary mesh (.glb) |
|---|---|---|
| Format type | Vector — resolution-independent geometry instead of pixels | Vector — resolution-independent geometry instead of pixels |
| How it stores data | the same five-section, 80-column record structure as .iges, with a letter code in column 73 marking each section | begins with a 12-byte header (magic glTF, version 2, total length) followed by a JSON chunk and usually one BIN chunk |
| Strongest at | reading decades-old supplier geometry that shipped with the short extension | publishing web and AR models that must load from one file |
| Weak spot | two spellings for one format regularly confuse file filters and format lists | scene graph, materials, and animations are richer than many converters preserve |
| Metadata | the same Global-section fields as the longer spelling: sender, author, units, and timestamps, and little else | asset generator and copyright fields live in the JSON asset object; richer metadata usually rides in extras or vendor extensions |
Pick GLB as the output
Select .glb in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if GLB is selectable, the route is real and validated.
Convert on your device
Press Convert. Open CASCADE compiled to WebAssembly triangulates the exact CAD geometry into a mesh inside your browser.
Verify and download
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid GLB file. Outputs keep the original filename with the .glb extension.
IGS to GLB questions, answered
Will converting IGS to GLB lose quality?
Since igs is vector-oriented and glb is vector-oriented, the conversion preserves the source content exactly as stored; no additional compression pass is applied beyond what .glb itself requires.
Is it private to convert IGS files here?
Yes — the .igs file is processed inside your browser tab and never uploaded. Open CASCADE compiled to WebAssembly triangulates the exact CAD geometry into a mesh inside your browser. Close the tab and the file is gone from memory.
Where will the GLB file work?
Windows 3D Viewer, Blender, glTF Sample Viewer, three.js, Babylon.js, Unity, Unreal, and most modern DCC tools import .glb. Mobile AR frameworks and web engines treat it as a first-class mesh package.
Will the GLB file be bigger or smaller than my IGS?
It depends on the content: begins with a 12-byte header (magic glTF, version 2, total length) followed by a JSON chunk and usually one BIN chunk. Convert one representative file first and compare before batch-processing a large set.
What happens to the metadata in my IGS file?
In .igs, the same Global-section fields as the longer spelling: sender, author, units, and timestamps, and little else. Re-encoding through the browser pipeline does not carry embedded metadata into the output, which doubles as a privacy scrub — check the exported file if you specifically need tags preserved.