Free Online IFC to STL Converter

You can use our IFC to STL conversion tool to quickly and easily convert your 3D model files for free. You may upload up to 20 files at one time, and our batch IFC to STL converter will process each 3D model and present you with a download link for each file once completed.

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

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

Our 3D model IFC to STL tool will load your IFC file and, where supported, attempt to extract all the relevant 3D features, such as geometry, textures, and animations. To access the 3D conversion configuration options, click the button when you have selected your files. The current options support the ability to voxelize your 3D model and more.

How to Convert your IFC to STL Online?

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

Upload your IFC file

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

Download your STL

Click the download link to receive your STL file.

Frequently Asked Questions

How can I convert my IFC file to STL?

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

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

We aim to process all IFC 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 IFC 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.

File format information for IFC and STL

Full NameIndustry Foundation Classes
Type3D Model
Mime Typeapplication/octet-stream

An IFC file is a 3D document file designed to store detailed data about 3D objects and is particularly popular in the construction, architecture, and engineering industries.

Standing for Industry Foundation Classes, the IFC format is designed as a standard format with the purpose of easy data exchange between 3D graphics and CAD applications with no loss of detail.

IFC files can be opened with many 3D and CAD applications, and our own IFC file converters can convert your IFC file to other, compatible formats.

IFC Converter Capabilities

When converting 3D model or mesh files using our IFC converter, we will attempt to convert color materials into a suitable format for use in the converted file.

Full NameStandard Triangle Language
Type3D Model
Mime Typeapplication/
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 modeling 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 flavors: 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 IFC to STL, our tool will attempt to accurately convert any color or material information.

Information for converting from IFC to STL

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

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