Free Online SLDPRT to STL Converter

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

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 SLDPRT file, once uploaded to our server, will be deleted 15 minutes after upload, so please download your converted SLDPRT file before this time.

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

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

Upload your SLDPRT file

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

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

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

We aim to process all SLDPRT 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 SLDPRT 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 SLDPRT and STL

Extension	SLDPRT
Full Name	SolidWorks
Type	CAD
Mime Type	application/octet-stream
Format	Binary

The SLDPRT file format is the native (and proprietary) 3D CAD (Computer Aided Design) format used by the SolidWorks application. SolidWorks is popular in the aerospace, automotive, and other manufacturing spaces where a highly accurate representation of 3D objects is necessary.

An SLDPRT file can contain 3D geometric data such as points, curves, faces, and other components that make up the 3D object. Along with the 3D design data, other manufacturing-related data is also stored within the SLDPRT file.

As the SLDPRT format is proprietary and designed for exclusive use with the SolidWorks application, there is limited third-party support for the format, preferring instead to support more open and standardized CAD formats such as STEP.

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 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.