glb to stl
Convert GLB to STL
Free GLB to STL converter. Runs in your browser, so the file never leaves your computer. Preview the model, then download the STL.
Good to know
glTF is in meters and Y-up. A character from Sketchfab will often be 1.8 units tall, which a slicer reads as 1.8 mm. Use the scale option (×1000 for meters to millimeters) before you download.
How it works
- 1Drop your GLB file in the box above. It is read in your browser.
- 2Check the preview and the size. If the GLB came in meters or inches, set the scale.
- 3Download the STL. It opens in Bambu Studio, PrusaSlicer, and Cura.
What carries over
- Shape
- Kept
- Colors
- Dropped
- Materials
- Dropped
- Units
- Dropped
- Separate parts
- Dropped
- Exact curves
- Dropped
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.
About STL
STL (Stereolithography). The default 3D printing format since 1987: a bare list of triangles. Every slicer reads it, but it has no units, no color, and no parts.
Units: None in the file. Slicers read the numbers as millimeters. Up axis: Z. Opens in Bambu Studio, PrusaSlicer, Cura, OrcaSlicer, and Blender.
Questions
- Is the GLB to STL 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 STL keep colors and materials?
- No. STL has no place for colors, materials, and separate parts, so only the shape carries over.
- What units is the STL in?
- GLB: Meters, by the glTF spec. STL: None in the file. Slicers read the numbers as millimeters. The converter does not guess. Use the scale option if the size looks wrong.
- How do I open an STL file?
- Bambu Studio, PrusaSlicer, Cura, OrcaSlicer, and Blender all open STL.
Related tools
All tools- Convert STL to GLBFree STL to GLB converter. Runs in your browser, so the file never leaves your computer. Preview the model, then download the GLB.
- STL viewer onlineOpen STL files in your browser. Measure distances and holes, cut a section, check it is watertight, and see the print weight. No install, nothing uploaded.
- GLB viewer onlineOpen GLB files in your browser. Measure distances and holes, cut a section, check it is watertight, and see the print weight. No install, nothing uploaded.
- Convert OBJ to STLFree OBJ to STL converter. Runs in your browser, so the file never leaves your computer. Preview the model, then download the STL.
- Convert 3MF to STLFree 3MF to STL converter. Runs in your browser, so the file never leaves your computer. Preview the model, then download the STL.
- Convert OBJ to GLBFree OBJ to GLB converter. Runs in your browser, so the file never leaves your computer. Preview the model, then download the GLB.
- Convert FBX to STLFree FBX to STL converter. Runs in your browser, so the file never leaves your computer. Preview the model, then download the STL.
- Convert FBX to GLBFree FBX to GLB converter. Runs in your browser, so the file never leaves your computer. Preview the model, then download the GLB.