查看我们精选的30种最佳免费CAD软件工具，包括适用于初学者，中级和高级用户的2D和3D CAD程序。
如果您想要免费的CAD软件或3D建模工具，但不确定自己适合哪个，请继续阅读我们的市场上最佳免费CAD软件的综合清单。
CAD软件是专业建筑师，工程师，动画师和图形设计师（以及希望将自己的设计变为现实的任何人）的重要工具。随着开源项目的激增，免费的CAD软件和3D图形工具在许多情况下并不比其商业版本复杂。但是，由于这些程序之间存在许多差异，因此很难选择正确的程序。
此选择分为三个部分：适用于初学者，中级用户和高级用户的最佳免费CAD软件。您会发现，此处列出的某些CAD软件工具仅对特定群体免费提供，例如学生和教育工作者。其他一些则提供了有限的免费版本，需要付费订阅才能访问其他功能。
最后，请记住，以下列表是按字母顺序组织的，而不是按排名或受欢迎程度排列。
[td]CAD Software | Level | OS | Price | Formats | | 3D Builder | Beginner | Windows, Windows Mobile, Xbox One, and Windows Hololense | Free | 3mf, obj, ply, STL | | 3D Crafter | Beginner | Windows | Free / 40$ | 3ds, dae, fbx, dxf, obj, x, lwo | | 3D Slash | Beginner | Windows, macOS, Linux, Raspberry Pi or Browser | Freemium, $2/month | 3dslash, obj, STL | | BlocksCAD | Beginner | Browser | Free | dxf, off, STL, scad | | Leopoly | Beginner | Browser | Free | stl, obj | | LibreCAD | Beginner | Windows, macOS and Linux | Free | dxf, pdf, svg | | MagicaVoxel | Beginner | Windows, macOS | Free | 2d, iso, mc, obj, ply, qb slab, vox, xraw | | SculptGL | Beginner | Browser | Free | obj, ply, sgl, STL | | Smoothie 3D | Beginner | Browser | Free | obj, STL, vrml | | Tinkercad | Beginner | Browser | Free | obj, svg, STL, 123dx, 3ds, c4d, mb | | Wings 3D | Beginner | Windows, macOS and Linux | Free | 3ds, fbx, obj, STL, dae, lwo, wrl, rwx, wrl, x, xml | | Antimony | Intermediate | macOS, Linux | Free | STL | | Art of Illusion | Intermediate | Windows, macOS and Linux | Free | obj, pov, wrl | | eMachineShop | Intermediate | Windows | Free | STL, stp, dxf | | FreeCAD | Intermediate | Windows, macOS and Linux | Free | STL, step, iges, obj, dxf, svg, scad, iv, ifc, FCstd | | Fusion 360 | Intermediate | Windows, macOS | Free (Students and Makers), $300/year (Commercial use) | STL, obj, catpart, dwg, dxf, f3d, igs, pdf, sat, sldprt, stp | | Meshmixer | Intermediate | Windows, macOS and Linux | Free | STL, amf, mix, obj, off | | QCAD | Intermediate | Windows, macOS and Linux | Free | dwg, dxf, dwf, pdf, svg | | Sculptris | Intermediate | Windows, macOS | Free | obj, goz | | SelfCAD | Intermediate | Browser | Free (Students), $14.99/month | STL, obj, mtl, ply, dae | | SolveSpace | Intermediate | Windows, macOS and Linux | Free | dxf, eps, pdf, svg, hpgl, obj, step, STL | | SketchUp Free | Intermediate | Browser | Free | stl, png, skp | | Vectary | Intermediate | Browser | Free, Lite $7.50/month, Premium $17.50/month | obj, STL, OBJ, gITF | | Blender | Advanced | Windows, macOS and Linux | Free | STL, 3ds, dae, fbx, dxf, obj, x, lwo, svg, ply, vrml, blend | | BRL-CAD | Advanced | Windows, macOS, Linux, Solaris and BSD | Free | dxf, iges, STL vrml, x3d | | DesignSpark | Advanced | Windows | Freemium, $835 (All Addons) | rsdoc, dxf, ecad, idf, idb, emn, obj, skp, STL, iges, step | | Houdini Apprentice | Advanced | Windows, macOS, and Linux | Freemium, $4,495 | geo, clip | | nanoCAD | Advanced | Windows | Freemium, $180/year | STL, sat, step, igs, iges, sldprt, 3dm, dae, dfx, dwg, dwt, pdf, x_t, x_b, xxm_txt, ssm_bin | | Onshape | Advanced | Windows, macOS, Linux and Browser | Free, $1,500 - $2,100/year | sat, step, igs, iges, sldprt, STL, 3dm, dae, dfx, dwg, dwt, pdf, x_t, x_b, xxm_txt, ssm_bin | | OpenSCAD | Advanced | Windows, macOS and Linux | Free | STL, dxf, off, scad, amf |
来源：all3dp
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