Best free CAD software: Top of 24 simple CAD program | Sculpteo Blog

Best free CAD software: Top of 24 simple CAD program

Posted By Claire Chabaud on Apr 5, 2017 | 6 comments



Find out a new version of this blog post right here: Top 25 of the best free 3D modeling software !


Blogpost updated on october 8th 2018

To make a 3D print, you need a 3D file, but to get it you don’t need to be an expert or have a significant budget; you can download 3D files from dedicated marketplaces or try to create it by yourself using 3D CAD & Modeling software. One of the main advantages of free modeling software is that they are often more intuitive than professional software, and are user-friendly for all experience levels.

Today we are going to give you an update about the 24 Best Free CAD software for both personal or professional purpose that can be used to assist you in the creation, analysis, manipulation or optimization of CAD model. We hope that you will find the perfect 3D modeling program to create and modify your designs.

I. Free CAD software for beginners

II. Free CAD software for experienced CAD users



I. Free CAD software for beginners

You never used a CAD software before? You want to design a simple shape model? You already used a 2D CAD but you want to go further? Then these free CAD software are for you! You will be surprised by all the design tools available on these free modeling platforms.

3Dslash (1)


3D Slash

The idea of 3D Slash was born when Sylvain Huet watched his kid play Minecraft, he had the bright idea that 3D printing should be as fun and entertaining as playing Minecraft. It’s true that 3D CAD software can often be boring and difficult to use; however, 3D Slash enables kids to discover the fun of 3D modeling by using block logic which enables everyone who uses it to create amazing designs, even if they have no previous modeling experience.

Files Format: STL, OBJ
Download it!



Leopoly offers an online surface 3D design software. It’s a very simple modeling platform to use, and it’s free. On their website, you can use already designed objects, and customize them using their tools. It’s very easy to add colors, shapes, letters to any designs. You can also start your design from scratch, or upload a file you’ve made using another design software. You can then export the file you’ve created it, or 3D print it directly on their platform.

Files formats: STL, OBJ

It’s browser-based



As FreeCAD uses Parametric modeling it can be used by different kind of users from the home user to the programmer. You don’t need to have a previous CAD experience to use it, and if you have difficulties in your first steps the FreeCAD community will be there to help you. This software is mainly used by engineers and architects because its features are adapted to mechanical engineering. A free software comparable to the best-paying ones!
Still, if you want to get more advanced features, you will have to buy some upgrading package.

Files Format: STEP, IGES, STL, SVG, DXF, OBJ, IFC, DAE, OFF, and, Fcstd
Download it!



K-3D is a CAD program with an artistic approach, both adapted to 3D modeling and animation. If you need more complex features in your design, you can upgrade the software with flexible plugins such as visualization pipeline architecture. Also, various interactive tutorials will give you tips to model your design and to use these software tools.

Files Formats: Wavefront OBJ, GTS, and a raw format are fully supported, other ones are optional and depend on PLIB installation. Experimental plugins include OpenFX, OFF, RIB and X formats.

Download it!



LeoCAD is a CAD program for creating virtual LEGO models. While it’s great for this purpose it is limited, so this is not the type of software you should use for a complex project. Its interface is user-friendly and currently, includes over 6000 different pieces which can help you to create a 3D model fast.

Files Format: .ldr, .dat

Meshmixer (1)

In the series Autodesk123D, Meshmixer is a software adapted to modeling and sculpting for 3D printing. You can create new models from an already existing one. The intuitive interface will help you to create complex models easily.
As with Meshlab, Meshmixer’s features include great tools for 3D printing like inspecting, cleaning and healing your 3D file for 3D printing.

Files Formats: OBJ, STL, MIX, DAE
Download it!

If you need help to prepare your 3D file for 3D printing, have a look to our tutorial dedicated for Meshmixer



TinkerCad is a browser-based 3D design and 3D modeling program that you can access through your browser. Within this web application, you can create a wide range of basic shape to endless creative ideas. It works by placing blocks one by one until it shapes the part of the objects then adjust the design freely and the last is to combine the set of shape to create an object you want. You can get your model in 10 minutes with CSG feature, and you don’t need any CAD experience to use it. Moreover, it has a really simple and interactive user interface.

Files Format: STL
No download, it is browser-based. Check out our tutorial to learn how to use TinkerCAD.



It is an innovative parametric 3D modeling software, developed by an engineer called Matt Keeter. This 3D software has an intuitive user-interface, allowing you to do some solid modeling and geometric shapes. It’s possible to create complex 3D models with this 3D modeling software. Antimony is available for Mac, Linux.

Formats: STL

Wings 3D

Even though Wings 3D is accessible for beginner CAD users, it is also a software used for complex shapes thanks to its advanced subdivision modeler. It has a customizable user interface and a built-in Auto UV mapping facility to add texture to your model. As an Open Source, Wings 3D is free it’s modeling tools can be used for personal and commercial projects as well.

Files Format: OBJ
Download it!


Strata Design SE 3D

If you are new in creating a 3D model, this Strata Design SE 3D can be the best option to start your design. This software provides you features that make easier to start designing your 3D file. You can also use it for 2D draftings. Drawing feature where you can either export your file or draw your own 2D object directly, Modeling feature and rendering features, the main option that makes Design SE 3D so easy and fun to use. It is possible to create technical drawings with this software.

File formats available in: Collada (in/out), Illustrator/EPS (in), Photoshop PSD (in/out), STL (out), 3DS (in), DXF (in/out), OBJ (in/out), VRML 1 & 2 (in/out)

Download it!


3D Builder

This free 3D modeling program is made for everyone. It is an accessible design program, with a friendly user interface. It is a simple CAD software, you can easily learn 3D modeling thanks to all its CAD tools. This software is developed by Microsoft, and only available for Windows.

Formats:  STL, OBJ, 3MF, PLY, VRML



SculptGL is a free browser-based 3D sculpting and modeling program. It is really easy to use and accessible to everybody. If you are curious about 3D sculpting, SculptGL is a good way to start and learn more about the basic functionalities of a sculpting software.

Formats: STL, SQL, OBJ, PLY


II. Free CAD software for experienced CAD users

This is not your first try in 3D modeling, but you don’t want to invest in an expensive professional CAD software? These free CAD software for experienced CAD users, inspired by the best professionals ones are perfectly suited for your needs.


3D-crafter (1)


Due to its drag and drop approach to create your model, 3D Crafter is a pretty intuitive program. The software is adapted to create complex models, and you can even upgrade it with additional features for game development or to render photo-realistic images. Also, the tutorials included in the software are really useful to help you in the first steps of your creation.

Files: if you want to export as anything other than POVRay or Renderman, you have to upgrade to either 3DCrafter Plus ($35) or 3DCrafter Pro ($70).
Download it!


Art of Illusion

Art of Illusion is the most used software within the RepRap community. The software is animation-oriented but is still really adapted when one is looking for a software that is both mixing modeling and rendering. Also, it has a good subdivision surface feature.

Files Format: wavefront, .OBJ, VRML or Povray
Download it!


Blender is well known for its steep learning curve, however, it is very powerful. Given that this software has a mesh-based direct modeling and not a parametric modeling one, it is more relevant for an artistic use. Nevertheless, with features as rendering sculpting and fast modeling, it is still very adapted to create your 3D model for 3D printing

Files Format: 3DS), COLLADA (DAE), Filmbox (FBX), Autodesk (DXF), Wavefront (OBJ), DirectX (x), Lightwave (LWO), Motion Capture (BVH), SVG, Stanford PLY, STL, VRML, VRML97, X3
Download it!

If you need help to prepare your 3D file for 3D printing, have a look to our tutorial dedicated for Blender



BRL- CAD has an outstanding geometric modeling system, also based on CSG. The editor even said that the software is used by the US Army to model weapon systems. The software is mainly used in advanced technology industries as in the Medicine or Automotive industry.

Files: ACAD, DXF, IGES, EUCLID, jack, STL, TAWKILL, VRML, Wavefront, X3D
Download it!



Meshlab is another very complete mesh fixing and editing software. It is particularly appreciated by more professional users for its many meshes and point cloud processing functions, and its ability to manage even very large files, making it suitable for use with high-quality 3D scan data.

Its vast set of “Filters”, i.e. the processing tools in Meshlab, include meshing analysis and “cleaning” of errors, remeshing, like surface reconstructions, an automatic smoothing algorithm, and visual “inspection” tools. The triangle reduction filter works great, letting you set the target number of triangles to reach and other useful options to preserve textures and topology.

Download it!


OpenCasCade proposes a good alternative to professional software. Its standardized Data Exchange interfaces allow querying and examining the input file, converting its contents to a CAD model and running validity checks on a fully translated shape.

Files Formats: STEP, IGES, VRML, STL, ACIS SAT, Parasolid, DXF.

Download it!


Openscad is merely focused on the creation of 3D objects for 3D printing. For this end, it is more focused on CAD ( to create machine parts for example), rather than an artistic one.
Thanks to the use of Constructive Solid Geometry and the Extrusion of 2D outlines, this software is very intuitive. It is perfectly suited for simple shapes that are already parametrically defined. Nevertheless, it would be too limited for an experienced user who works with complex models.

Files Format: STL OFF SCAD DXF
Download it!


Sculptris is building around a user-friendly interface with detail and complex level of modeling. With its painting and sculpting tools, it is perfectly suited for character modeling. Also, you will be able to locally redefine the internal structure of the model, which might be a very useful feature when you’re looking at making lighter structures for 3D printing.
Files Formats: N/A
Download it!

If you need help to prepare your 3D file for 3D printing, have a look to our tutorial dedicated for Sculptris



eMachineShop provides a free and full access CAD software where you can download mostly for a professional use. This user-friendly  CAD software offers design custom parts with real-time pricing and their expert will give you design feedback regarding your product design.

File formats: IGS, SLDPRT, STP, STEP IGES, and 3D DWG file types for quotation. These formats: PDF, JPG, TXT, and 2D DXF files are also able to be used with eMachineShop CAD software.

Download it!



This a free open-source 3D modeling software, developed by Jonathan Westhues. It is actually possible to do some 2D drawing with this program if you need to, you can totally use it as a 2D CAD. Solve Space is available with Windows Mac OS and Linux. As this design tool is not for beginners, a lot of video tutorials are available on their website.


Download it!


We hope that you’ll find a software package that will fit with your project and your expertise, thanks to this top. Technical drawings, graphic designs, 3D models, everything is achievable with this CAD software tools and their modeling, painting and sculpting tools. Be attentive, and choose a software package compatible with your computer (window mac or Linux).
As you can see, even if you’re a beginner, there is a lot of simple 3D modeling software, to create and modify your designs. Are you ready to get started with 3D modeling? Once you have your 3D design ready, don’t hesitate to upload your 3D file on our online 3D printing service.

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