Free Online 7Z to STL Converter

Use our free-to-use and fast 7Z to STL file converter to expertly convert your 7Z files perfectly into the STL file format, ready for further editing or use in your favorite STL file editing application. Our tool can also batch convert your 7Z files, enabling you to convert up to 20 files in one go.

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

Please note: Your 7Z file, once uploaded to our server, will be deleted 15 minutes after upload, so please download your converted 7Z file before this time.

Use the button above to select the 7Z files you wish to upload; once selected, you can click the Upload button to start the conversion. Once all your files have been converted, you will be able to download your STL files either individually or all together in a compressed ZIP file.

How to Convert your 7Z to STL Online?

Here are two simple steps to convert your 7Z to STL using our fast and free 7Z converter tool.

Upload your 7Z file

Click the "Upload a 7Z File" button, then select a 7Z 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 7Z file to STL?

First, click the "Upload..." button and select your 7Z file to upload. Your 7Z file will be uploaded to our servers. When the 7Z to STL conversion has completed, you can download your STL file right away.

How long does it take to convert my 7Z to STL?

We aim to process all 7Z 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 7Z 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 7Z and STL

Full Name7z Archive
Mime Typeapplication/x-7z-compressed

A file with the 7Z extension is a compressed archive. It was created by Igor Pavlov in the late 1990s with the intention of making it easy to allow many files to be grouped together and compressed into a single, easy-to-distribute archive.

Along with individual files, the 7Z format allows multiple files and whole directory structures to be compressed and packed into a single container format. The compression algorithm used enables high compression ratios without any data loss.

To open 7Z files, there are several archive processing applications available. Some examples, such as 7-Zip and WinRAR, are able to open 7Z files.

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.

Information for converting from 7Z to STL

Our 7Z archive converter will examine the contents of your 7Z file and will look for any 3D model file that it may contain, and this, once found, will be extracted and converted to a 3D STL file ready for download.

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