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Can UltiMaker Cura Open GLB Files? How to Import Them

UltiMaker Cura is a free slicer used with UltiMaker printers and hundreds of other FDM machines.

Short answer · Convert first

Not directly. UltiMaker Cura doesn't import GLB, so convert the file to STL first and import the STL.

Open the GLB to STL converter

Getting a GLB file into UltiMaker Cura

  1. 1Check the fileA GLB is self-contained: geometry, materials and textures are inside the one file, so there is nothing else to copy.
  2. 2Convert GLB to STLDrop the file into our GLB to STL converter. It runs in your browser, so the model never leaves your computer.
  3. 3Import into UltiMaker CuraFile › Open File(s)… (Ctrl+O), or drag the file into the window.
  4. 4Check scale and orientationUltiMaker Cura works in millimetres and is Z-up. GLB files are metres by convention, so they normally arrive at the right size.
  5. 5Place it and sliceLay the flattest face on the plate, confirm the dimensions in the object panel, and slice. Slicers ignore textures and animation.

What comes through

ShapeYes, always.
Colours and materialsIgnored: UltiMaker Cura only uses the shape.
TexturesNot used by a slicer.
AnimationUltiMaker Cura doesn't play animation.

Things to watch for

  • Cura doesn't read GLB; convert it to STL.
  • Use the Lay flat or Select face to align to build plate tool before slicing awkward shapes.

Questions

Does UltiMaker Cura support GLB files?
Not directly. UltiMaker Cura doesn't import GLB, so convert the file to STL first and import the STL.
Why is my GLB model the wrong size in UltiMaker Cura?
GLB files are metres by convention, while UltiMaker Cura works in millimetres. Scale the model after importing, then apply the scale before you continue.
What is the best 3D format for UltiMaker Cura?
3MF and STL are the most reliable choice for UltiMaker Cura. If you have a choice when exporting, pick 3MF over GLB.

Menu names follow UltiMaker's current release. Check the official UltiMaker Cura documentation if your version differs.

Written with AI assistance by the Renderlyst team in October 2026. Format support reflects each app's current release as we understand it, and we link the official documentation so you can confirm it for your version. Spotted something out of date? Email alishbakhalid766@gmail.com.