Top of the best tools!

Posted By on Jun 26, 2019 |

Creating your STL file is an important step in your 3D printing process. STL is the most common file format for 3D print 3D printing, as this format is readable by all 3D printers. Sculpteo’s online 3D printing service is supporting almost all 3D files possible, but one of the most used file formats is still STL. There are many reasons to need an STL. So once, you have your 3D model ready, how can you convert it into an STL file in order to get it 3D printed? 

That is what you are about to learn in this blog post. What is an STL converter? What are the best tools you can use to convert your 3D files? Let’s check it out right now. 

Why do you need an STL converter? 


As we just said, the STL file format is the most common format used in 3D printing. In order to use additive manufacturing, you might want to get your 3D model converted into an STL. Or you might need an STL file to use special software: there are many different cases where you might need to convert your 3D file to STL. 

A lot of 3D modeling programs are now offering file conversion, but not all of them, and they are not especially converting into STL. In some cases, you maybe have another 3D file format, such as OBJ, or anything else, and you might want to convert it into STL format. Don’t worry it is possible.


To help you in your 3D project, and help you find the best way possible from your 3D design to your 3D printed part,  we have decided to create a list of the best STL converter. A lot of them are free online, and easy to use! Get ready to convert 3D files using a 3D file converter.


Which tool should you choose to convert your 3D model?



This first program is an online and free platform, made to convert your 3D models into STL files. It is actually supporting a wide range of files, from STL to PLY. Easy to use, Meshconverter is not offering any other features than file conversion, but if you just want to convert your 3D file quickly, and for free, it is a good solution.


Spin 3D

Have you heard about Spin 3D? Spin 3D is a mesh converter, quite easy to use, and able to convert several mesh files at the same time. This software is pretty quick and allows you to share your files.

Spin 3D is a software, not an online solution, so you will have to download it to use it. It will be useful for your 3D printing projects, but also for game modding and animation.


CAD Exchanger

CAD Exchanger is also a software for DATA translation. OBJ, 3dm, brep, step, a lot of file formats can be translated to STL, or from STL. You can download this 3D model converter for free and then upload your files to get them converted.


Online CAD converter

Online CAD converter is exactly what you think it is when seeing its name: an online converter for your CAD files. Everything is free, and it allows you to translate SLDPRT, STEP, SKP, X_T, JT, OBJ, STL, 3DS, IPT, 3D PDF, CATIA and more. It supports CAD files, graphical formats, neutral formats.

This program offers different packages. You can convert one file for free, but then you will have to pay 1€ per file. The maximum file size is 100 KB.



Greentoken is an online platform developed by a passionate programmer interested in 3D. This open source website supports more than 3D different formats, including STL, FBX, Blender, OBJ, 3DS DXF, LWO, or PLY. 


Bear File Converter

Here is another online and free converter. This one might be useful for you for a lot of different projects. Indeed, it is a converter able to convert audio files, images, office documents or convert videos. But it is also possible to use it to convert 3D models, and that is what is interesting for us today. This website supports a lot of different file formats, including BLEND, STL, 3DS, XML, etc. This tool is super simple to use and is quite complete.

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