Free Online ZIP to STL Converter

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

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

How to Convert your ZIP to STL Online?

Here are 2 simple steps to convert your ZIP to STL using our fast and free ZIP converter tool.

Upload your ZIP file

Click the "Upload a ZIP File" button, then select a ZIP to upload. The maximum file size is 100MB.

Download your STL

Click the download link to receive your STL file.

File format information for ZIP and STL

ExtensionZIP
Full NameZIP Archive
TypeArchive
Mime Typeapplication/zip
FormatBinary

A ZIP file is a widely used data compression and archiving format that allows multiple files and folders to be compressed into a single, more compact package. The term "ZIP" refers to the file extension (.zip) commonly associated with this format. ZIP files are used to reduce the overall file size, making it easier and faster to transfer or share a group of files. They are particularly useful when sending files over the internet or storing large sets of data efficiently.

Inside a ZIP file, individual files and directories are compressed using a lossless compression algorithm, which means no data is lost during the compression process. This compression significantly reduces the file size, allowing users to save storage space and reduce bandwidth usage when transmitting the files. ZIP files can be created and extracted using various software applications, and most modern operating systems have built-in support for handling ZIP files natively, making it easy to work with them without the need for additional software.

ZIP files also offer the benefit of organizing related files together in one archive, making it convenient to group files that belong to a particular project or share files that are related to a specific topic. Additionally, ZIP files can be encrypted with a password to provide an extra layer of security, preventing unauthorized access to the contents of the archive. Due to their versatility, widespread compatibility, and ability to efficiently package and compress files, ZIP files remain a popular choice for organizing, sharing, and archiving data across various platforms and systems.

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 ZIP to STL

Our ZIP archive converter will examine the contents of your ZIP 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.

Frequently Asked Questions

How can I convert my ZIP file to STL?

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

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

We aim to process all ZIP 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 ZIP 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.