A GLB model, made printable.
Turn a GLB or glTF into an STL in your browser, nothing uploaded: its parts made one shape in millimetres, standing on Z, checked before you download it.
By Suraj Kumar4 min read
Models from web shops, game kits and 3D sites often come as GLB. To print one you need an STL. KeepSimp writes it in your browser at the model's real size.
Drop the GLB and download the STL.
Open GLB to STL and drop the .glb on it (or a .gltf with its .bin). The STL is chosen; press Download STL.
Before the file is offered, KeepSimp opens it again with its own reader and counts its triangles and measures its size; a file that does not match the model is not offered, and the page says what was wrong.
Its real size, in millimetres.
glTF is always in metres, so the model's size is known. The STL is written in millimetres, as slicers read it: a figure 0.12 m tall is 120 in the STL. Choose another unit under Write its sizes in if your printer software wants one.
The STL stands on Z, turned a quarter round from glTF's Y, so the model sits on the bed as it stood on the floor.
What stays behind.
Colours, materials, pictures and animations cannot go into an STL; the page lists each before you download. A model that moves is written as it stands at rest.
Whether the shape is closed matters to a slicer. The viewer says so when the model opens: A closed shape, or the holes it found.
Further reading
Topics: glb to stl · convert glb to stl · gltf to stl · glb to stl for 3d printing · glb to stl converter
A little less theory. A little more doing.
Try it on your own terms, with a free browser tool.
Try the tool