Free Online GLTF to STL Converter

Or drag and drop your files here to upload.
A maximum of 20 files can be uploaded at once.

Please note: Your GLTF file, once uploaded to our server will be deleted 15 minutes after upload so please download your converted GLTF file before this time.

How to Convert your GLTF to STL Online?

Here are 2 simple steps to convert your GLTF to STL using our fast and free GLTF converter tool.

Upload your GLTF file

Click the "Upload a GLTF File" button, then select a GLTF to upload. The maximum file size is 100MB.

Download your STL

Click the download link to receive your STL file.

File format information for GLTF and STL

ExtensionGLTF
Full NameGraphics Language Transmission Format
Type3D Model
Mime Typemodel/gltf-binary
FormatBinary

GLTF stands for Graphics Language Transmission Format, and it is a file format designed for efficiently transmitting 3D models and scenes across various platforms and applications. Developed by the Khronos Group, GLTF is an open standard that has gained significant popularity in the computer graphics and virtual reality industries. The format uses a JSON-based structure to describe 3D objects, their geometry, materials, textures, and animations. This allows GLTF files to be compact in size while maintaining a high level of detail, making them ideal for use on the web and in real-time applications.

One of the primary benefits of GLTF is its versatility and compatibility with a wide range of 3D modeling and rendering software. It supports both binary and textual representations, giving developers the option to choose the most suitable format for their needs. Additionally, GLTF is designed to integrate seamlessly with WebGL, the web standard for rendering interactive 3D graphics, enabling users to view 3D models directly in their web browsers without the need for plugins or specialized software. The format also supports physically-based rendering (PBR) workflows, ensuring that materials and lighting behave consistently across different platforms and environments.

GLTF's efficiency, cross-platform support, and rich feature set have made it a popular choice for 3D content distribution. It has found applications in various industries, including gaming, augmented reality, virtual reality, and e-commerce. As technology continues to advance, GLTF is likely to play an increasingly crucial role in the seamless and widespread dissemination of 3D content, fostering a more immersive and interactive online experience for users around the world.

GLTF Converter Capabilities

Our GLTF 3D Model/Mesh tool does not support any color material data contained within GLTF files so the converted file will not contain any color information.

ExtensionSTL
Full NameStandard Triangle Language
Type3D Model
Mime Typeapplication/vnd.ms-pki.stl
FormatText
Opens WithBlender, MeshLab, CAD Assistant, DAZ Studio

The STL, or Standard Triangle Language, file format has been around since the '80s and is supported by most modern 3D modelling applications. In particular, the STL format has become something of a standard format within the area of 3D printing, despite the rise of more modern formats such as 3MF.

STL files come in two flavours: binary or text format. The text format is human-readable, making it easy to perform manual edits, but can lead to very large file sizes. As you can imagine, the binary format is much more compact and represents the majority of the STL files you are likely to encounter.

The format itself is very simple; the 3D model is represented by a sequential list of triangles, with each triangle defined with 3 points consisting of their X, Y, and Z positions, along with an additional vector that contains the face normal (the direction the face is pointing). There is an additional attribute block for each triangle; however, this is largely unused and thus unsupported.

STL Converter Capabilities

Our 3D conversion tool does not support color/material information in STL files so your file will not contain any color information.

Information for converting from GLTF to STL

Your GLTF file will be converted to a STL file using our unified 3D model and mesh conversion tool. Our GLTF 3D tool performs accurate conversions of 3D elements such as vertices, faces, normals and relevant material information. Our tool will not attempt to transfer any color information if present in your GLTF file, your final 3D model will contain geometry data only.

Frequently Asked Questions

How can I convert my GLTF file to STL?

First click the "Upload..." button, select your GLTF file to upload. Your GLTF file will be uploaded to our servers. When the GLTF to STL conversion has completed, you can download your STL file straight away.

How long does it take to convert my GLTF to STL?

We aim to process all GLTF to STL conversions as quickly as possible, this usually takes around 5 seconds however this can be longer for certain files, so please be patient.

How accurate is the GLTF to STL conversion?

We aim to provide the best conversion experience. Our tools are under constant review and development with new features being added every week.