Simple 3D design software for free that's suitable for beginners, works well with 3D printers and has 3D and 2D export function: Autodesk 123D Design was created as a user-friendly and powerful 3D modeling application. 274 MB | For Windows 7, Windows 8 / Vista / XPFree
3D modelling app which can be used to draw models with polygons, circles, lines providing import and export operations to Google's warehouse: Google SketchUp is a freeware and extremely easy-to-use 3D image design and 3D modelling software suite. 36.99 MB | For Windows 7, Windows 8 / Vista / XPFree
Powerful collaboration CAD editing and viewing software for sharing and modifying your 3D models with CAD and CAM projects: Fusion 360 is a 3D computer-aided design (CAD), computer-aided manufacturing (CAM), and computer-aided engineering (CAE) software developed by Autodesk. 11.2 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPTrial
Powerful and professional 3D modelling software which can create models, animation, shading and works with a number of file formats: Blender is a freeware and open source 3D image editor which works with modeling, image animation and rendering of 3D graphics formats inside of a clean, customizable interface. 27.1 MB | For Windows 7, Windows 8 / Vista / XPFree Blender Review - Download
Sweet Home 3D is a powerful interior design software that allows you to create realistic floor plans and home designs. 31.72 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree Sweet Home 3D Review - Download
Autodesk Design Review CAD viewer software lets you view, mark up, print, and track changes to 2D and 3D files for free without the original design software. 421 MB | For Windows 7, Windows 8 / Vista / XPFree
MyVirtualHome is a really amazing 3D architecture software that helps you design your home from construction plans. 40.2 MB | For Windows 7, Windows 8 / Vista / XPFree MyVirtualHome Review - Download
A free CAD modelling editor which can assist in creating drawings and objects in both the 2D and 3D space with drawing tools: FreeCAD is a free and open-source 3D computer-aided design (CAD) software application. 80.9 MB | For Windows 7, Windows 8 / Vista / XPFree FreeCAD Review - Download
Grab your models from different 3D applications such as 3DS Max or AutoCAD and open them up in 3D Object Converter in order to other formats. 2.1 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPTrial 3D Object Converter Review - Download
A tool which assists in improving AutoCAD skills with models in this alternative to programs like Google Sketchup: Autodesk 123D Make is an interesting 3D design tool probably created as a response to free programs like Google Sketchup and the libe which converts 3D models into real-world objects which can potentially be created with a 3D printer. 81.1 MB | For Windows 7, Windows 8 / Vista / XPFree Autodesk 123D Make Review - Download
With this free AutoCAD viewer, you can open and manipulate DWG files. 607.95 K | For Windows 7, Windows 8 / Vista / XPFree AutoCAD Drawing Viewer Review - Download
**** Autodesk FBX Review **** is a freeware 3D model viewing application that supports several of Autodesk's model types but more specifically FBX files. 20.7 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree Autodesk FBX Review Review - Download
3D Maker software which allows users to easily create 3D pictures: 3D Maker is an amazing software tool designed to help users create stunning 3D designs and models on their PCs. 0.5 MB | For Windows 7, Windows 8 / Vista / XP / NTShareware 3D Maker Review - Download
Siemens' JT2Go is the king of the hill in the world of JT data viewing. 308 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree JT2Go Review - Download
VariCAD Viewer is a 3D file viewer which supports VariCAD-supported images and can open STP, DWG, DWB and DXF files. 21.6 MB | For Windows 7, Windows 8 / Vista / XPFree VariCAD Viewer Review - Download
Fully functional trial of the powerful CAD software to create and manage 3D models and realistic rendering engine: Autodesk Maya is a popular 3D modeling and animation tool. 1.2 GB | For Windows 7, Windows 8 / Vista / XPTrial
A simple and lightweight 2D CAD design program with editor with points, lines, circles, arcs, ellipses, rectangles and text: LiteCAD application was designed to be a 2D CAD program. 12.1 MB | For Windows 7, Windows 8 / Vista / XPFree
A modeling and 3D design application which sets out to compete with the likes of AutoCAD: ZWCAD is a 3D design and modeling tool and works as an alternative to mainstream CAD software such as AutoCAD. 357.71 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPShareware ZWCAD Review - Download
A 3D modelling program for creating virtual LEGO models which can order pieces online directly from LEGO headquarters: LeoCAD currently has a library of more than 1000 different unique pieces (but they don't represent any particular brand), most of them created by James Jessiman (the author of LDraw). 26.6 MB | For Windows 7, Windows 8 / Vista / XPFree
Light and easy 3D mesh CAD design software featuring post-processing and a collection of modules with its own scripting language: Gmsh is a free 3D finite element mesh generator with a built-in CAD engine and post-processor. 27 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree
DAZ Studio is a free tool that can create unique digital art in 3D form not limited to virtual people, accessories, props, animals and other items the imagination can come up with. 168 MB | For Windows 7, Windows 8 / Vista / XPFree DAZ Studio Review - Download
A 3D image editor and view with a lot of different tools and all-around versatile: StereoPhoto Maker is a completely free image editor and naturally also an image viewer for stereoscopic images. 981 KB | For Windows 7, Windows 8 / Vista / XPFree Stereo Photo Maker Review - Download
Easily create and edit various types of CAD files for free -- 2D PPM, XBM and XPM formats included: LibreCAD is a free and open-source program for editing and viewing technical sketches on your computer and provides many functions for 2D design schemes. 27 MB | For Windows 7, Windows 8 / Vista / XPFree LibreCAD Review - Download
Simple application to view projects and graphs created with Origin in the form of OPJ files: Origin Viewer is a free and standalone application that allows viewing and copying of information contained in Origin project files and Origin window files, on computers that do not have Origin installed. 8.1 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree
Software utility that facilitates the creation of electrical diagrams with exporting to DXF, EMF and PNG format: ProfiCAD is designed for drawing of electrical and electronic diagrams, schematics, control circuit diagrams and can also be used for pneumatics, hydraulics and other types of technical diagrams. 9.8 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree
Basic software from Autodesk for viewing 3D models such as DWF files without the ability to edit them: Autodesk Design Review CAD viewer software lets you view, mark up, print, and track changes to 2D and 3D files for free -- without the original design software. 49.8 MB | For Windows 7, Windows 8 / Vista / XPFree
Freeware DWG CAD design software: nanoCAD - easy-to-use free CAD software delivering great user experience by providing classic interface and native . 274.62 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree
Diagram Designer is a very simple vector graphics editor and object creator with which you can create charts, diagrams, graphs and sketches of all kinds. 1.33 MB | For Windows 7, Windows 8 / Vista / XPFree Diagram Designer Review - Download
Mini CAD Viewer is a compact free CAD Viewer that is designed to be easy to use, even for those with no prior CAD experience. 6.3 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree
A 3D system of editing triangular meshes that can clean, heal, render images like X3D, OBJ, STL, PTX and other formats: MeshLab is an open-source 3D mesh processing software application that allows users to edit, clean, and convert 3D meshes. 34.4 MB | For Windows 7, Windows 8 / Vista / XPFree
A free and reliable 3D modelling and animation application that includes a number of useful and advanced tools: K-3D is the free-as-in-freedom 3D modeling, animation, and rendering system. 10.76 MB | For Windows 7, Windows 8 / Vista / XPFree
Designing with CAD software can be a formidable undertaking, and if you want to achieve optimal results, you need a reliable software package. 101.1 MB | For Windows 7, Windows 8 / Vista / XPShareware GstarCAD Review - Download
Canvas X Draw is a powerful graphics and design software, designed to assist the user in the creation of complex drawings, designs, and graphics. 127.32 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPShareware Canvas Review - Download
Niche CAD design app that can create a bicycle model with a range of different presets for creating all of the parts required: A graphical tool to design a bicycle (s) geometry and derive drawings from its configuration. 9.6 MB | For Windows 7, Windows 8 / Vista / XPFree
3DVIA Shape is a very simple, yet elegant 3D designing application which includes basic tools for modeling with polygons with the option of posting them online. 1 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree 3DVIA Shape Review - Download
gCAD3D is an open-source 3D computer-aided design program intended for industrial design and other professionals requiring software like AutoCAD. 6.6 MB | For Windows 7, Windows 8 / Vista / XPFree gCAD3D Review - Download
Art of Illusion is a free and open source 3D rendering program that is capable of creating three-dimensional scenes, shapes and animations. 7.44 MB | For Windows 7, Windows 8 / Vista / XPFree Art of Illusion Review - Download
NaroCAD - a powerful utility built specifically to assist designers in crafting their 3D CAD models with ease. 15.3 MB | For Windows 7, Windows 8 / Vista / XPFree NaroCAD Review - Download
DeleD is a 3D modeler designed to help you create content for your game project, whether you're a professional or indy game developer. 10.8 MB | For Windows 7, Windows 8 / Vista / XPFree
A basic CAD modelling program for beginners: CadStd is a freeware alternative to CAD design programs like AutoDesk's famous AutoCAD program, though CadStd Lite only works in two dimensions. 785.32 K | For Windows 7, Windows 8 / Vista / XPFree CadStd Lite Review - Download
A no-hassle 3D modelling application with many advanced features and scripting: DeepMesh is a rather powerful 3D modelling application which includes advanced features, yet is still relatively easy-to-use. 10.47 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree Trial deepMesh Review - Download
Switching to 3D design is a change in capability that many Professionals strive for but in many cases without success. 41.03 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree Trial
Mapping and geodata software supporting a number of formats which allows users to analyse, publish and distribute maps: Free geodata viewer that lets you publish and distribute your maps and geospatial data from a single geodata file to complex map layouts prepared using TNTmips. 58.9 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree
MyCadbox is an online CAD viewer enabling ultra-fast viewing, sharing, markup, and co-viewing of large 3D STEP files on PC and iPad. 2.3 MB | For Windows 7, Windows 8 / Vista / XPFree