Drop a .gltf below and download a binary STL ready for Cura, PrusaSlicer or Bambu Studio. The conversion happens locally in your browser — no upload, no account, no queue.
Converted locally · never uploaded · no signup
Every mesh in the glTF scene is merged with transforms applied and written as slicer-ready binary STL.
The file converts in browser memory and downloads instantly — even large scenes that would time out on upload-based converters.
The loaded glTF renders in 3D on the page, so you print the model you think you're printing.
Drag the .gltf into the tool. Self-contained files with embedded buffers convert best.
The scene is flattened into a single binary STL, locally in the browser.
Load the downloaded .stl straight into your slicer.
glTF carries PBR materials, textures and scene hierarchy — none of which a 3D printer uses. Converting to STL strips the asset down to what slicers need: plain triangle geometry, with every node's position, rotation and scale baked in so the print matches the on-screen model.
Conversion preserves the mesh as-is; it doesn't repair it. Web and AI-generated assets can contain thin walls or non-manifold edges that were invisible on screen but matter when printing. If your slicer flags errors, run its built-in mesh repair — the geometry issue existed in the source, not in the format change.
Yes — unlimited conversions, no signup, no watermark.
No. The conversion is done client-side with three.js; the file never leaves your machine.
STL cannot store them — the format is geometry-only by definition. The shape converts exactly; appearance data is dropped because printers ignore it.
Externally referenced .bin buffers can't be read from disk by a browser tool. Use a self-contained .gltf, or convert the .glb version with the GLB to STL converter.
Type a prompt, get a textured 3D model in about a minute — then download it as GLB, STL, OBJ, FBX or USDZ.
Generate a model from text →