Open and view IGES files online — free, no signup, no upload
An IGES file (.iges/.igs) is a neutral CAD exchange format for surfaces and solids — a long-standing predecessor to STEP. This viewer reads it with an OpenCASCADE engine right in your browser. This viewer opens IGES files right in your browser so you can rotate, zoom and pan a model and check its bounding-box dimensions and triangle count — without installing software or sending your file anywhere.
How to view an IGES file
1. Drag your file onto the box above, or click Open IGES file. 2. Drag to orbit, scroll to zoom, right-drag to pan. 3. Read the width/depth/height and triangle count in the panel.
Frequently asked questions
How do I open an IGES file online?
Drag your .iges or .igs onto this page or click Open File. It's read by an OpenCASCADE engine running in your browser and rendered in 3D — nothing is uploaded. The first IGES you open loads the engine (a one-time few-second download).
Is IGES the same as IGS?
Yes — .iges and .igs are the same format; the extension just differs by system. This viewer opens both.
Do I need CAD software?
No. The IGES geometry is tessellated and displayed in your browser, so you can inspect a model without any CAD program.
Is my IGES file uploaded?
No — the whole thing runs on your device. Your CAD model never leaves your computer.