GLB to STL — print a model from Blender or Sketchfab
Convert GLB or glTF to STL for 3D printing: metres to millimetres, Y-up to Z-up, every mesh in the scene in its place. Then repair the holes AI models often have and set the real size. In your browser, nothing uploaded.
Saves model files for your slicer, never printer code. Opened and sliced in PrusaSlicer, OrcaSlicer, Bambu Studio and Cura.
About this conversion
glTF models are measured in metres and stand on the Y axis; a printer works in millimetres with Z up, so both are turned on the way in. Models from AI generators and games are usually made to look right, not to print: open edges, parts that pass through each other, a surface with no inside. Repair closes them into one solid. Colours and textures are not kept — STL and the printer only take the shape.
Just want to look inside it?
The same tool without converting anything: open the file and read it.
The same model, other ways
The model stays open after it is read, so the format is picked at the end: the same model can leave here as 3MF (.3mf), OBJ (.obj) or STEP (.step). Before that you can repair it, cut it, make it smaller or combine it with another one.
Questions
- The model is 1000 times too big or too small
- glTF models made without real units have no fixed size. Use Set size for the height you want, or ÷1000 / ×1000 under Mirror, scale.
- Does it read Draco-compressed files?
- Not yet — export the model again without compression.