/ glb / viewer
GLB viewer
Open a .glb file and see it, with its size, triangle count and mesh checks. GLB stores no unit, so the size assumes metres. It renders in this tab.
Your file never leaves your browser. STEP, IGES and BREP fetch the OpenCASCADE kernel (2.3 MB over the wire); 3DM fetches rhino3dm (2.5 MB before compression); every mesh and scene format fetches neither. Nothing downloads until you pick a file.what we bundle ↗
estimate · above the measured floor
This will take about
Your file is . STEP parsing measured at across real CAD files, and this machine benchmarked . Nothing has been downloaded yet.
- Kernel to download — OpenCASCADE
- —
- Parse and tessellate
nobody should wait that long without having been told
above 25 MB · may not fit in a browser
This file may be too big for a browser
At this needs roughly here. Whether it fits depends on the geometry, not the size: a large CAD assembly can open, while a much smaller STEP exported from a mesh can run out of memory. If it does, this page says so, and the file never leaves your computer either way.
If it does not open here
the same sourced table as the format page — dated, not invented
we never block the attempt, we only tell you the cost first
rendered locally · — fps
drag to orbit · scroll to zoom · shift-drag to pan
What a GLB preview leaves out
GLB packs the scene, its geometry and its textures into one file, which is why it opens here cleanly where a bare .gltf often cannot. If someone sent you a .gltf that arrives empty, the geometry is in a companion file and a GLB export is the fix.
This viewer draws geometry and base colours. Image textures are not displayed and animation is not played, so a model that looks flat or untextured here can still be perfectly intact. Primitives drawn as points, lines, strips or fans are skipped, because only triangles carry through to the formats on this site.
glTF and GLB fix their unit at metres in the specification rather than storing one per file, so the dimensions assume metres. A model authored in millimetres will read a thousand times too large. The GLB guide covers packaging.