# STL File Manipulation & 3D Design Software

**3D Design Software**

| **Software**    | **License** | **Experience Level** | **Website**                  |
| --------------- | ----------- | -------------------- | ---------------------------- |
| Autodesk 123D   | Freeware    | Beginner             | <http://www.123dapp.com/>    |
| OpenSCAD        | GNU GPL     | Amateur              | <http://www.openscad.org/>   |
| FreeCAD         | GNU LGPL    | Amateur              | <http://freecadweb.org/>     |
| Seamless3D      | MIT         | Intermediate         | <http://www.seamless3d.com/> |
| Google Sketchup | Freemium    | Intermediate         | <http://www.sketchup.com/>   |
| SolidWorks      | Commercial  | Expert               | <http://www.solidworks.com/> |
| Blender         | GNU GPL     | Expert               | <https://www.blender.org/>   |
| Rhino3D         | Commercial  | Expert               | <https://www.rhino3d.com/>   |

**STL File Manipulation Software**

| **Software**         | **License** | **Capabilities**                                                                                                                                            | **Website**                                       |
| -------------------- | ----------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------- |
| Netfabb basic (free) | Freeware    | Fill missing triangles, flip inverted triangles, and more                                                                                                   | [http://www.netfabb.com](http://www.netfabb.com/) |
| Slic3r (free)        | Freeware    | Capable of splitting a STL assembly into multiple STLs, merge STLs together, and create build plates                                                        | [http://slic3r.org](http://slic3r.org/)           |
| Materialise Magics   | Commercial  | A combination of Netfabb and Slic3r                                                                                                                         | <http://software.materialise.com/magics>          |
| Autodesk Meshmixer   | Freeware    | Use it to import stl files and manipulate them. You can split parts, add joints, merge parts, and add shapes to parts (like cubes, spheres, weird features) | <http://www.meshmixer.com/>                       |
| Slash 3D             | Freeware    | Import STL models and hack away at them like Minecraft, or make blocked things from scratch and download as an STL.                                         | <https://www.3dslash.net/index.php>               |

&#x20;Updated: May 08 (3 months ago)

**Other Articles**

* [Websites to download 3D Models](https://support.printm3d.com/226923-Websites-to-download-3D-Models)
* [Using NetFabb basic to make downloaded thingiverse models ](https://support.printm3d.com/540707-Using-NetFabb-basic-to-make-downloaded-thingiverse-models-printable)