Free Online AI to STL Converter

Our free-to-use AI to STL file converter can be used to convert your AI vector file into either a 3D heightmap model or an extruded 3D model. As our tool supports batch file conversion, you may upload up to 20 AI files, and once your files have been converted, you may download them using the unique download links.

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

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

When you upload a vector AI file, our tool can be configured to create either an extruded model or a heightmap model. There are other options available to enable you to tweak how the final STL 3D model is created as well. To access these options, please click the button once you have selected your files.

How to Convert your AI to STL Online?

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

Upload your AI file

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

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

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

We aim to process all AI 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 AI 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.

How is the 3D model generated from my AI image?

Our tool uses a Heightmap process whereby the STL 3D model is created based on the luminosity of the individual pixels in your AI image.

Is there a limit to the size of my image?

Yes, to ensure our tool converts the AI image quickly and with a reasonable final file size, your tool will resize any image larger than 600x600 pixels.

File format information for AI and STL

ExtensionAI
Full NameAdobe Illustrator
TypeVector
Mime Typeapplication/octet-stream
FormatBinary

The AI file format is the native file extension associated with the Adobe Illustrator vector editing software. The format stores graphics in vector form, enabling content to be scaled without any loss of detail or pixelation associated with bitmap formats.

A wide range of image data can be stored within an AI file, including basic drawing elements such as lines, curves, and other shapes and colours, gradient fill, and other effects that control the rendering of elements. All these drawing elements are arranged in an independent manner, allowing easy editing of the individual elements that make up the final image.

AI files can be imported into a wide range of vector editing software with varying degrees of accuracy, meaning that for maximum compatibility, Adobe Illustrator software is best used when editing AI files.

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.

Information for converting from AI to STL

Our AI converter will convert your AI file to a 3D model using the Heightmap process, whereby 2D pixels, based on their luminosity, are converted into 3D space to create a full 3D STL model ready for download for further processing in your favourite 3D editing package or for printing on a 3D printer.

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