Free GLB to STL Converter
Convert GLB to STL locally for geometry-only 3D printing checks, slicers, and manufacturing review.
Convert GLB to STL locally for geometry-only print prep.
About this tool: Free GLB to STL Converter
Convert GLB to STL locally for geometry-only 3D printing checks, slicers, and manufacturing review. No upload required — everything runs locally in your browser for privacy and speed.
Common use cases
- STL output stores geometry only; textures, colors, materials, rigs, and animations are discarded.
- After conversion, inspect the STL in your slicer before printing.
Converting GLB to STL for printing
GLB to STL is the one conversion that drops information on purpose: STL keeps the triangles and discards colour, textures and materials, because that is exactly what a slicer understands. Convert from the GLB you generated, never from a file that was already converted once.
The order that avoids a wasted print
- 1
Check that the model can print at all
Open the GLB in the inspector and look at the underside before you convert. A mesh that is open, or has walls thinner than two nozzle widths, fails after the conversion as well.
- 2
Convert in the browser
The conversion runs locally, so an unreleased model is not uploaded anywhere, and no account or credits are involved.
- 3
Set the unit in your slicer
STL carries no unit. Read the bounding box in millimetres, compare it with the real part, and scale there rather than guessing in the slicer.
GLB to STL questions
- Does converting GLB to STL lose the texture?
- Yes, by design. STL has no colour, material or UV channels, so the export is geometry only. Keep the GLB as the master and treat the STL as a disposable derivative.
- What unit is the STL in?
- None. The numbers are unitless, so the file only means the right size if you tell the slicer what the numbers represent. Confirm the bounding box in millimetres first.
- Can I get the texture back from the STL?
- No. Re-export from the original GLB, or the colour has to be re-authored by hand.
Quick tips
- STL output stores geometry only; textures, colors, materials, rigs, and animations are discarded.
- After conversion, inspect the STL in your slicer before printing.
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Related 3D guides and workspaces
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