Free Online STL Converter

Please note: Your STL file, once uploaded to our server will be deleted 1 hour after upload so please download your converted STL file before this time.

How to Convert your STL file Online?

Here are 3 simple steps to convert your STL file using our fast and free STL file converter tool.

Upload your STL file

Upload your STL file

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

Select file type

Select file type

Select the file type to convert your STL file to using the dropdown list of available types.

Download your file

Download your file

Click the download link to receive your converted file.

STL file format information

ExtensionSTL
Full NameStandard Triangle Language
Type3D Model
Mime Typeapplication/vnd.ms-pki.stl
FormatText
Opens WithBlender, MeshLab, CAD Assistant, DAZ Studio

The STL file format has its roots in the 1980's and is the native file format for 3D Systems stereolithography CAD software. The format defines a triangulated mesh with vertices and faces and is a popular format for sharing 3D printable model files.

There were several formats that attempted to extend the STL format namely SolidView and VisCAM whose formats included limited 15-bit color information for each mesh face which is often ignored by most modern 3D software. The STL format can be either Text or Binary, our tools will support both formats.

STL Converter Capabilities

Our STL converter can both convert from and to STL files and our developers are working to improve our STL conversion tools in future versions.When converting 3D Model/Mesh files using our [ey] converter we will attempt to convert color materials into a suitable format for use in the converted file.

Popular STL Tools

Frequently Asked Questions

How accurate is the 3D file conversion?

Our STL conversion tool can convert most 3D geometry including mesh vertices and faces with no loss of detail. Any color materials contained within the 3D model file will be converted where possible.

Are textures supported in the STL conversion?

No, due to the different methods of assigning textures to a 3D model textures are not currently supported. If your STL model contains textures or references to external texture files, these will be ignored.

Is it free to use the STL conversion tools?

Yes! Our STL conversion tools are 100% free to use.

Are there any STL conversion usage limits?

No, you can convert as many files as you wish. We do not impose any conversion limits on our STL conversion tools.

How long does it take to convert my STL?

We aim to process all STL conversions as quickly as possible, this usually takes around 5 seconds however this can be longer for certain files and significantly longer for some larger file formats, so please be patient.

What does the STL conversion process involve?

Once your STL file has been uploaded and we know the file format you wish to convert it to our bespoke conversion software will convert your STL and make it available for you to download with a unique download Url.

Is it safe to convert my STL on FabConvert.com?

Yes, of course it is! Your STL, once converted is deleted 1 hour after upload and the download link will expire after this time.

Can I convert my STL on Linux, Android, iOS or Mac OS?

Yes! Our STL conversion tools will run on any system with a modern web browser.

Is there any support for me when using the STL tool?

If you are having difficulty converting your STL you can contact us and we will try to help where possible.