Convert STEP to GLB

Free STEP to GLB converter. Runs in your browser, so the file never leaves your computer. Preview the model, then download the GLB.

Good to know

Use this to show a CAD part on the web: model-viewer, Shopify, or a product page. Each solid in the STEP becomes its own mesh.

How it works

  1. 1Drop your STEP file in the box above. It is read in your browser.
  2. 2Check the preview. Pick a finer mesh quality for smoother curves, or coarser for a smaller file.
  3. 3Download the GLB. It opens in Blender, Windows 3D Viewer, and Sketchfab.

What carries over

Shape
Kept
Colors
Kept
Materials
Dropped
Units
Kept
Separate parts
Kept
Exact curves
Dropped

About STEP

STEP (ISO 10303 STEP). The ISO standard for exchanging exact CAD solids. Faces are true curves, not triangles, so another CAD program can edit and dimension them.

Units: Explicit. Usually millimeters. Up axis: Z. Opens in Fusion, SolidWorks, Onshape, FreeCAD, and Inventor.

About GLB

GLB (Binary glTF). The web’s 3D format from the Khronos Group. One file with meshes, PBR materials, and textures. Used by AR viewers, Shopify, Sketchfab, and three.js.

Units: Meters, by the glTF spec. Up axis: Y. Opens in Blender, Windows 3D Viewer, Sketchfab, and model-viewer.

Questions

Is the STEP to GLB converter free?
Yes. You get 3 runs a month without an account. Sign in with your email, free, and there is no limit.
Is my file uploaded?
No. The file is read and converted in your browser. It never reaches our servers.
Will the GLB keep colors and materials?
Where the STEP has them, yes.
What units is the GLB in?
STEP: Explicit. Usually millimeters. GLB: Meters, by the glTF spec. The converter does not guess. Use the scale option if the size looks wrong.
How do I open a GLB file?
Blender, Windows 3D Viewer, Sketchfab, and model-viewer all open GLB.

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