STL Converter
Convert from STL / GLB

STL to GLB Converter

Package STL geometry as a compact, web-native GLB asset for interactive product viewers, Three.js, Shopify, PowerPoint, and AR previews.

Select a source file or drop it hereSTL uses the conversion API · upload limit 250 MB
STL
READY
3D MODEL PREVIEWWAITING
ISOMETRIC CHECK / REV 02OUTPUT / GLB
XYZ
waiting_for_fileUPLOAD TO ANALYZE
STL geometry conversion diagram
Format guide

Technical principle

The export contains geometry only. Add presentation materials in your web or 3D tool and verify scale in the target viewer. The exporter turns the source into a bounded triangle mesh and exposes the selected units, tessellation, or image settings…

Parameters at a glance

ParameterValueWhy it matters
Input format.STLAccepted source file extension.
Output formatGLBGeometry or archive produced by this route.
File sizeUp to 250 MBUpload guardrail before parsing or conversion.
Mesh reviewPreview, normals, open edgesCheck geometry before download or slicing.

Why GLB is Useful for Sharing STL Models on the Web

Raw STL is inefficient for web delivery and does not open natively in many AR viewers or office suites. Converting STL to GLB packages indexed geometry and normals in a self-contained glTF 2.0 buffer.

Frequently Asked Questions

How much smaller is GLB than STL?

Indexed GLB buffers are often smaller than Binary STL and can be substantially smaller than ASCII STL, depending on the mesh and attribute layout.

Does the converted GLB include a default material?

The export provides static geometry. Add or adjust materials in Three.js, Shopify, PowerPoint, or your target viewer.

Can I open the converted GLB on mobile?

GLB is supported by modern mobile browsers and common WebAR viewers. Test scale, materials, and polygon count in your target pipeline.