Convert GLTF to STL Online — Free
Upload a GL Transmission Format file and download it as Stereolithography. Runs entirely in your browser — no server uploads.
About These Formats
GL Transmission Format
GLTF is the Khronos open standard for 3D assets — a JSON-based format that describes scenes, meshes, materials, animations, and cameras with external texture files.
Used with
WebGL applications, game engines, AR/VR platforms, and cross-tool 3D workflows.
Stereolithography
STL stores only triangulated geometry — no colors, textures, or animations. It is the de-facto standard for 3D printing slicers and CAD software.
Used with
3D printing slicers (Cura, PrusaSlicer, Bambu Studio), CAD tools, rapid prototyping workflows.
When to Convert GLTF to STL
Convert GLTF to STL when you need to 3D print the model. STL is the universal format for slicing software like Cura, PrusaSlicer, and Bambu Studio. Note that STL contains geometry only — colors and textures from the GLTF source will not be included.
Other GLTF Conversions
Frequently Asked Questions
How do I convert GLTF to STL?
Upload your .gltf file using the tool above, confirm the source format is set to GLTF and the target is STL, then click Convert. The file processes in your browser and you can download it immediately.
Does converting GLTF to STL preserve textures?
STL stores geometry only. Textures and materials will not be included in the output.
Is this converter free?
Yes, completely free. No account, no usage limits, no hidden fees.
Are my files uploaded to a server?
No. All processing happens locally in your browser using WebGL. Your files never leave your device.