Free Online DXF to STL Converter

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

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Select File(s)

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

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

To begin, click the button above and select your DXF 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 DXF to STL Online?

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

Upload your DXF file

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

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

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

We aim to process all DXF 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 DXF 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 DXF and STL

Extension	DXF
Full Name	Drawing Exchange Format
Type	CAD
Mime Type	image/x-dxf
Format	Binary

A DXF file was created by Autodesk as a standardized format for storing complex 2D and 3D Computer Aided Design (CAD) drawings in a single, standard package that can be used for seamless exchanging of data between different CAD systems.

The DXF format is plain text and allows CAD elements such as points, lines, curves, and other elements to be represented in an efficient manner that is easy to read by other CAD applications. The use of plain text does, however, cause the files to grow in size quickly when storing large and complex CAD drawings.

As DXF files are designed from the start to be an open and standard format, there are many CAD and 2D drawing applications that offer support for importing and exporting to the DXF format.

Extension	STL
Full Name	Standard Triangle Language
Type	3D Model
Mime Type	application/vnd.ms-pki.stl
Format	Text
Opens With	Blender, 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.