8 Best Free STL to OBJ Converter Sotware For Windows

Here is a list of best free STL to OBJ converter software for Windows. STL or  Stereolithography is a CAD file format that carries 3D designs, models, and graphics. Similar to STL, OBJ or Object file also carries 3D models and graphics. Now, in case you need to convert a 3D model from STL to OBJ format, you can use these STL to OBJ converter software listed in this article. Apart from OBJ, these converters can also convert STL files to 3DS, DAE, GLB, 3MF, AMF, and more formats.

These software also come with many sculpting and 3D model designing tools through which you can modify 3D models of an STL file as you want. Some of the popular editing tools offered by these converters are Sculpt, Align, Transform, Hollow, and Manipulator. These software also offer a good 3D model viewing environment that allows you to view a 3D model from different directions and distances. Plus, dedicated viewing modes like Wireframe, Texture, Lighting, etc., are present in some converters. These converters also contain additional tools that may come in handy like Plugin Support, Analysis, Filters, Measurement Tools, etc.

The process of conversion is quite simple in all these converters. Still, to help you out, I have included the steps to convert STL to OBJ in the description of each software. Go through the list to know more about these software.

My Favorite STL to OBJ Converter Software For Windows:

Wings3D is my favorite software because it lets you view, edit, and convert STL files to OBJ and other supported 3D file formats. Plus, it offers a simple and effective working environment that makes it an ideal STL to OBJ converter.

You can also check out lists of best free STL to PNG Converter, STL to FBX Converter, and STEP to OBJ Converter software for Windows.

Wings3D

Wings3D is a free open source STL to OBJ converter software for Windows, Linux, and macOS. It is mainly a 3D modeling software in which you can create 3D models from scratch. The modeling tools of this software can also be used to edit input 3D models of various formats such as AI, DAE, GLB, OBJ, PLY, etc. Some of the important modeling tools that it offers are sculpting, tweak, boundary box, ambient occlusion, and magnet mask. Besides sculpting, you can also use it to view and analyze the STL 3D model using wireframe, isometric view, orthographic view, etc., viewing tools. Now, follow the below steps to perform STL to OBJ conversion.

How to convert STL to OBJ using Wings3D:

• Launch this software and load an STL file in it using the Import option.
• Now, you can use the modeling tools of this software to make modifications to the appearance of the model.
• Next, go to the Export menu and select the OBJ format.
• Lastly, hit the OK button to start the conversion process.

Additional Features:

• Screenshot: It is a simple screenshot capturing feature through which you can take screenshots of 3D models.
• Plugin: In this software, you can add additional plugins to introduce more features to this software.

Final Thoughts:

It is a simple and effective STL to OBJ converter software through which you can also edit 3D models.

Autodesk Meshmixer

Autodesk Meshmixer is another free STL to OBJ converter software for Windows and macOS. In this software, you can also sculpt and edit 3D models before changing their file format. To edit a 3D model, this software offers tools like sculpt, align, transform, hollow, make solid, unwrap, and more. Plus, 3D model viewing tools (orientation, zoom, pan, etc.) are also present in it. Another good thing about this converter is its ability to support 3D models of various formats like WRL, PLY, 3MF, AMF, and more. Now, follow the below steps to convert STL to OBJ using this software.

How to convert STL to OBJ using Autodesk Meshmixer:

• Start this software and click on the Import button to load an STL file.
• After that, you can make changes to the input 3D model using available editing tools, if you want.
• Next, go to the Export section and select OBJ as the output file format.
• Lastly, specify the destination location path and hit the Save button to start the conversion process.

Additional Feature:

• Analysis: It offers multiple model analysis tools through which you can find out the structural weakness, stability, thickness, etc., properties of 3D model.

Final Thoughts:

It is a beautifully designed STL to OBJ converter software in which you can view, edit, and convert 3D models from one 3D file format to another.

MeshLab

MeshLab is another free open source STL to OBJ converter software for Windows, Linux, and macOS. Apart from STL and OBJ, it can also be used to convert 3D files of PLY, PTX, X3D, DAE, PTS, and more formats. In this software, you can also create and edit 3D models before starting the conversion. To edit 3D models, it offers many tools like align, manipulator, z-painting, pick points, select vertexes, and more.

This software also offers a decent set of 3D model viewing tools through which you can change the orientation of a model, pan model, zoom in on the model, and view model in wireframe mode.

How to convert STL to OBJ using MeshLab:

• Start this converter and click on the Import Mesh option to load an STL file.
• Now, you can view and analyze the STL file model and also make changes to the model using viewing and editing tools.
• Next, go to the Render tab and render the final model.
• At last, use Export Mesh As option and select OBJ as the output file format and hit the Save button to start the conversion process.

Additional Features:

• Point to Point Measure: It is a measuring tool through which you can measure the distance between two points over a 3D model.
• Filters: It provides multiple 3D model filters to modify the layer, sampling, texture, and more properties of a 3D model.

Final Thoughts:

It is another good STL to OBJ converter through which you can view, edit, and convert 3D models of an STL file to OBJ format.

FreeCAD

FreeCAD is a free open source STL to OBJ converter software Windows, macOS, Debian, and Ubuntu. It is also a popular 3D modeling software through which you can create 3D models of Robots, Ships, Buildings, etc. To create different types of models, it offers multiple workbenches like ship designing, architecture, robot designing, etc. In each workbench, you can find various 3D model editing tools to create and edit 3D models and designs. After creating or editing a model through this software, you can easily export it in various file formats like 3DS, STL, DCAD, DAE, SVG, and more.

How to convert STL to OBJ using FreeCAD:

• Start this software and go to File > Import menu and load an STL file. You can immediately view the 3D model of the STL file on its interface.
• Now, you can select a workbench and start making adjustments to the model according to your requirements.
• After all necessary adjustments, go to the Export menu and select OBJ as the output file format.
• Lastly, press the Save button to initiate the conversion process.

Additional Features:

• Measure Distance: Using it, you can accurately measure the distance between any two points over a model or design.
• Units Calculator: Through this feature, you can calculate the quantity using two variables of different units like length, mass, angle, volume, force, pressure, etc.

Final Thoughts:

It is a powerful 3D model creation software that also lets you edit and convert 3D models of STL format before starting the conversion.

pCon.planner

pCon.planner is another great free STL to OBJ converter software for Windows. It is basically a featured software to view, create, and edit 3D models. Using it, you can also export STL files to other formats including OBJ, DWG, FBX, SKP, 3DS, DXF, etc. Before starting the conversion, you can modify the model contained in the STL file. To to that, it offers tools like replace, extrude, mirror, subtract, move, rotate, scale, merge, intersect, edit texture, and more.

How to convert STL to OBJ using pCon.planner:

• Open the interface of this converter and go to File > Open option to load an STL file.
• Now, use available editing tools to make desired changes to the STL file model, if required.
• Next, go to File > Export > Geometry menu and select the OBJ format.
• In the end, click on the Save button to start the conversion process.

Additional Feature:

• This software offers an additional Presentation feature through which you can create animation and videos using 3D models.

Final Thoughts:

It is another capable STL to OBJ converter that also lets you view and edit 3D models of STL and other supported file formats.

Blender

Blender is a free open source 3D modeler software that can also be used as the STL to OBJ converter software. It works on Windows, macOS, and Linux. Before starting the conversion, you can use its modeling tools to make changes to the design of an STL file model. Apart from sculpting, you can use Layout, UV Editing, and Texture Point tools to make further changes to the 3D model. However, the main advantage of this converter is its ability to support 3D models of various file formats such as FBX, PLY, DAE, STL, GLB, and more.

How to convert STL to OBJ using Blender:

• Start this software and load an STL file using the Import menu.
• Now, you can view the 3D model of the STL file and make changes to its design using available sculpting and editing tools.
• After that, you can Render the final model to give it a finished look.
• Lastly, go to the Export menu and select OBJ as the output file format and hit the Export OBJ button to start the conversion.

Additional Features:

• Video Editing Mode: It also offers a video editing mode to edit video files.
• Animation: It is another important feature of this software that allows you to create and edit realistic 3D animations.

Final Thoughts:

It is a feature-rich STL to OBJ converter in which you can view, edit, sculpt, and convert 3D models of various formats.

Bforartists

Bforartists is yet another free open source STL to OBJ converter software for Windows and Linux. It is primarily a 3D designing software through which you can create 3D cartoon characters and 3D models. To create and edit 3D models, it provides editing sections like Rendering, Post Processing, Modeling, Sculpting, Rigging,  and more. In it, you can also closely view and analyze 3D models without much hassle. Apart from STL and OBJ, it also supports 3D models of 3DX, PLY, X3D, WRL, etc., formats.

How to convert STL to OBJ using Bforartists:

• Open the interface of this converter and load an STL file using its Open option.
• After that, use available editing tools to make changes to the STL model design, if you want.
• Next, move to File > Export menu and select the OBJ format from it.
• At last, specify the destination location path and then press the Export OBJ button to start the conversion process.

Additional Feature:

• Animation: As its name implies, this feature is used to create 3D animation using 3D models and objects.

Final Thoughts:

It is another 3D model creation software that allows you to convert STL files to OBJ, PLY, 3DX, etc., file formats.

Open 3D Model Viewer

Open 3D Model Viewer, as its name suggests, is a free open source 3D model viewer software that can also be used as an STL to OBJ converter software. It works on Windows.

In this 3D model viewer, you can view 3D models of various file formats such as DXF, LWO, LWS, MD5, MD3, MD2, NDO, and more. To view 3D models, it offers multiple viewing modes like wireframe, textures, lighting, full 3D view, etc. Apart from viewing the STL file model, you can export it in OBJ file format.

How to convert STL to OBJ using Open 3D Model Viewer:

• Start this software and click on the Open option to load an STL file.
• After that, you can view the 3D STL file model using available viewing tools.
• Next, go to the Tools > Export option and select OBJ as the output file format.
• Now, adjust output model parameters like use relative texture path or not, include scene hierarchy, include animation or not, etc.
• Lastly, specify the destination location path and hit the Export button to start the conversion.

Final Thoughts:

It is one of the simplest STL to OBJ converters through which you can easily view and convert 3D models of various formats.