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Convert Your 3D Mesh/Model OBJ Files to STL

Convert your 3D Wavefront OBJ to STL file that can then be sent straight to a 3D printer or if you prefer, opened in most 3D editing applications such as Blender and many more. Our tool works with all OBJ files and will convert all 3D geometry contained within the file to the Standard Triangle Language format also known as STL.

To convert your OBJ to STL, click the Upload button above and select the OBJ file to convert. Once selected, the file will be converted to a STL file and will ready for download shortly afterwards. For more information about the OBJ to STL conversion process including what 3D file features are supported please see the conversion information section below for more information.

How to Convert your OBJ to STL Online?

Here are 2 simple steps to convert your OBJ to STL.

Upload a OBJ

Click the "Upload a OBJ File" button and select a OBJ to upload. The maximum file size is 100MB.

Download your STL

Click the download link once completed to receive your STL file.


What STL formats can I convert to?

Our tool will save all STL files in binary format. Optionally, our tool will allow you to save to the non-standard color STL format.

How can I convert my OBJ file to STL?

First click the "Upload..." button, select your OBJ file to upload. Select any configuration options. When the OBJ to STL conversion has completed, you can download your STL file straight away.

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

We aim to process all OBJ to STL conversions as quickly as possible, this usually takes around 5 seconds but can be more for larger more complex files so please be patient.

How accurate is the OBJ to STL conversion?

We aim to create the most accurate conversions with our tools. Our tools are under constant development with new features and improvements being added every week.

Is it safe to convert my OBJ to STL on ImageToStl.com?

Yes, of course! We do not store the OBJ file you submit to us. The resulting STL file, once created is deleted 1 hour after upload and the download link will expire after this time.

Can I convert OBJ to STL on Windows, Linux, Android, iOS or Mac OS?

Yes! Our OBJ to STL tool will run on any system with a modern web browser. No specialist software is needed to run any of our conversion tools.

What if I am using an Ad Blocker, will that affect things?

Yes. Although you can use an Ad Blocker, if you like our OBJ conversion tool please consider white-listing our site. When an Ad Blocker is enabled there are some conversion limits on some of our tools and processing/conversion times will be longer.