Home3D Model ConverterSTL ConverterConvert STL to 3MF

Free Online STL to 3MF Converter

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

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

How to Convert your STL to 3MF Online?

Here are 2 simple steps to convert your STL to 3MF using our fast and free STL converter tool.

Upload your STL file

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

Download your 3MF

Click the download link to receive your 3MF file.

File format information for STL and 3MF

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

An STL file, short for Stereolithography, is a widely used file format in 3D printing and computer-aided design (CAD) applications. It serves as a standard method to represent the surface geometry of a three-dimensional object. The format was first developed by 3D Systems in 1987 and has since become a fundamental file type in the additive manufacturing industry. STL files are essential in the process of converting digital 3D models into physical objects through 3D printing technology.

STL files consist of a collection of triangular facets that approximate the shape of the 3D model. The surface of the object is divided into numerous small triangles, forming a mesh representation. Each triangle is defined by three vertices in 3D space and possesses information about its orientation and size. Since STL files store only the outer surface of the model, they are often referred to as "mesh" files or "surface" files, as they lack information about the object's internal structure or color.

When using STL files for 3D printing, slicing software processes the 3D model by dividing it into layers and creating the instructions for the 3D printer to build the object layer by layer. Despite its simplicity and widespread usage, STL files have some limitations. They do not support color or texture information, and the triangle-based representation can lead to larger file sizes and reduced accuracy compared to other file formats. Nonetheless, STL remains a vital format in the 3D printing ecosystem due to its simplicity and compatibility with a wide range of 3D printers and software.

STL Converter Capabilities

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

Extension3MF
Full Name3D Manufacturing Format
Type3D Model
Mime Typeapplication/vnd.ms-package.3dmanufacturing-3dmodel+xml
FormatBinary

A 3MF file, short for 3D Manufacturing Format, is a modern and versatile file format specifically designed for 3D printing applications. It serves as a container for storing 3D models along with all relevant information necessary for the additive manufacturing process. Developed by the 3MF Consortium, this file format aims to address the limitations and complexities of traditional file formats like STL. The 3MF file format enables more efficient and accurate representation of 3D models, ensuring better interoperability among different 3D software and hardware, ultimately enhancing the overall 3D printing workflow.

Unlike STL files, which only describe the surface geometry of a 3D model using triangles, 3MF files can store more comprehensive data. This includes not only the geometry but also color, materials, textures, multiple components, and even slicing information. As a result, 3MF files offer a more complete representation of the 3D model, enabling precise visualization and fabrication without the need for additional external data. This integration of metadata within the 3MF file simplifies the 3D printing process, reduces the likelihood of errors, and promotes consistency across various 3D printing platforms.

Moreover, the 3MF file format is continually evolving, with updates and improvements being developed by the 3MF Consortium and its contributing members. This ensures that the format remains relevant and adaptable to emerging technologies and requirements within the additive manufacturing industry. As 3D printing continues to gain traction in various fields, from manufacturing to healthcare, the adoption of the 3MF file format is expected to grow, offering a streamlined and standardized approach to 3D model exchange and facilitating the widespread use of 3D printing technologies.

3MF Converter Capabilities

When converting your STL to 3MF our tool will attempt to accurately convert any color/material information.

Information for converting from STL to 3MF

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

Frequently Asked Questions

How can I convert my STL file to 3MF?

First click the "Upload..." button, select your STL file to upload. Your STL file will be uploaded to our servers. When the STL to 3MF conversion has completed, you can download your 3MF file straight away.

How long does it take to convert my STL to 3MF?

We aim to process all STL to 3MF 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 STL to 3MF conversion?

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