Free Online IGS to STL Converter

Use our free-to-use IGS to STL CAD to 3D model converter to effortlessly convert your IGS files. Our converter can apply extrusion to your IGS files, which can then be edited in most 3D editing applications. As our IGS to STL tool is able to batch convert your files, you can upload a maximum of 20 files at a time.

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

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

To begin, click the button above and select your IGS CAD files. Once selected, your CAD files will be added to the conversion list. From here, you will be able to set any conversion properties, such as extrusion depth, by clicking the button. When you are ready, click the Convert button to convert your files.

How to Convert your IGS to STL Online?

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

Upload your IGS file

Click the "Upload a IGS File" button, then select a IGS 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 IGS file to STL?

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

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

We aim to process all IGS 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 IGS 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 IGS and STL

ExtensionIGS
Full NameInitial Graphics Exchange Specification
TypeCAD
Mime Typeapplication/iges
FormatBinary

The IGS file format is a Computer Aided Design (CAD) file format originally developed in the 1980s. With the many CAD applications available at the time, all using their own file format, the IGS format was created to be a standard format to exchange data between CAD applications.

All the common features of CAD files can be represented using the IGS format, including basic elements such as lines, curves, text, and other shapes, along with their visual properties such as their colour and other metadata.

The IGS format has since been superseded by other, more capable formats, such as STEP; however, IGS files can still be opened with some modern CAD applications. We also have tools for converting IGS files to other CAD and 3D model formats.

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.

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