Valentina Perez
sliced perfectly. much appreciated.
GLTF to STL Converter: Free & Online
Convert GLTF models to precise, printable STL files ready for manufacturing.
- Free
- No sign-up
- No install
Open .gltf → select the mesh → Export → choose .stl
Click Open Files and pick your .gltf file. Then click Export, choose .stl in the Extension list and click Save.
How to convert GLTF to STL
Open your .gltf file
Click Open Files in the converter above and pick the file on your computer. It opens in your browser, with no sign-up.
Select the mesh
A glTF file opens as a group. In the scene list, expand the group and click the mesh inside it: Export works on one object.
Export as .stl
Click Export, choose .stl in the Extension list and click Save. The file downloads to your computer.
In the desktop app
- Install and sign in. Download MeshInspector for Windows, macOS or Linux and sign in. The free Community plan is enough.
- Open the file. Click Open Files and pick the .gltf file.
- Export. Expand the glTF group in the scene list, select the mesh, click Export and choose .stl.
- Save. Pick a folder and save the .stl file.
What to know about GLTF → STL
- glTF is a JSON scene format; a .gltf often refers to separate .bin and texture files, a .glb packs everything into one file.
- STL stores only triangles: no colors, textures or units in the standard format.
- A glTF opens as a group in MeshInspector: select the mesh inside it, and Export saves that one object as .stl.
- glTF carries scenes, materials and textures for web viewers and game engines.
- STL has no units, and most slicers read the numbers as millimeters, so check the size after conversion.
Online or desktop
Online
The converter on this page runs the MeshInspector web app in your browser: no install, no sign-up. It suits single files; the web app works within your browser's memory.
Desktop
The desktop app runs on Windows, macOS (Apple silicon) and Linux. Use it for large files, many files, and the tools the web app does not have. The free Community plan covers opening and exporting; see Pricing for what the paid plans add.
FAQ
Do I need an account to convert GLTF to STL?
No. The converter on this page is the MeshInspector web app running in your browser without sign-up. Click Open Files and pick your .gltf file, select it in the scene list, click Export, choose .stl in the Extension list and click Save. The converted file downloads to your computer.
Is the GLTF to STL converter free?
Yes. Opening a .gltf file and exporting it as .stl use free tools, here, in the web app and in the desktop app on the free Community plan. Paid plans add tools such as Mesh Healer and automatic repair; the Pricing page lists what each plan includes.
Are colors and units kept?
STL keeps only the triangles: colors, textures and units are lost when you convert to STL. STL has no units, and most slicers read the numbers as millimeters, so check the size of the model after conversion and use Scale if it is off by a factor of 10, 25.4 or 1000.
Is there a file size limit?
There is no fixed limit on this page, but the web app works within your browser's memory: up to about 4 GB, or 16 GB in browsers with 64-bit WebAssembly. For very large models, or many files, use the desktop app for Windows, macOS or Linux.
Free Community planWindows, macOS (Apple silicon) and Linux
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By Mesh Inspector TeamPublished: Updated:
