Free Online USD 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 USD file, once uploaded to our server will be deleted 15 minutes after upload so please download your converted USD file before this time.

How to Convert your USD to STL Online?

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

Upload your USD file

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

Download your STL

Click the download link to receive your STL file.

File format information for USD and STL

ExtensionUSD
Full NameUniversal Scene Description
Type3D Model
Mime Typeapplication/octet-stream
FormatBinary

A USD file, which stands for Universal Scene Description, is a powerful and versatile file format and interchange mechanism for 3D computer graphics and animation. Developed by Pixar Animation Studios, USD is designed to streamline the collaboration and sharing of 3D assets and scenes across different software applications and workflows. It serves as a container that can encapsulate various elements of a 3D scene, including geometry, shading, animation, and more, making it an ideal choice for large-scale, complex projects in the entertainment and visual effects industries.

USD employs a concept known as "composition" to represent a scene. Instead of storing everything in a single monolithic file, it allows for the assembly of scenes from many modular, reusable components. This component-based approach not only reduces redundancy but also enhances collaboration by enabling multiple artists to work on different aspects of a scene simultaneously. USD files use a highly efficient layering system, enabling artists to override or extend existing scenes without modifying the original data, which is crucial for non-destructive workflows.

USD has gained widespread adoption in the entertainment industry, with various software packages supporting it, including 3D modeling and animation applications like Maya and Houdini. This widespread support has made it easier for studios and artists to work together, as they can seamlessly exchange USD files containing all the necessary information for a scene, from geometry and materials to lighting and animation, without worrying about compatibility issues, making it a crucial part of modern 3D content creation pipelines.

USD Converter Capabilities

When converting 3D Model/Mesh files using our USD converter we will attempt to convert color materials into a suitable format for use in the converted file.

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

When converting your USD to STL our tool will attempt to accurately convert any color/material information.

Information for converting from USD to STL

Your USD file will be converted to a STL file using our unified 3D model and mesh conversion tool. Our USD 3D tool performs accurate conversions of 3D elements such as vertices, faces, normals and relevant material information. As both USD and STL support color material information our tool will also attempt to convert the color information too.

Frequently Asked Questions

How can I convert my USD file to STL?

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

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

We aim to process all USD 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 USD 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.