Alternatives to DesignSpark Mechanical
A direct-modelling 3D CAD program with push-pull tools, aimed at engineers and makers without deep CAD experience. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
DesignSpark Mechanical
A direct-modelling 3D CAD program with push-pull tools, aimed at engineers and makers without deep CAD experience.
Replacements
Listings that take over the same core job as DesignSpark Mechanical.
Autodesk Fusion 360
Cloud-connected parametric CAD, CAM, and CAE platform with a free personal tier.
Autodesk Fusion 360 adds parametric modelling, CAM and simulation on Windows and macOS with a free personal tier, though it needs an internet connection for full functionality.
Onshape
Fully browser-based parametric CAD platform with real-time collaboration.
Onshape runs parametric CAD fully in the browser with real-time collaboration, but it needs a stable connection and its free tier makes projects publicly viewable.
Shapr3D
Touch-first parametric CAD app originally built for iPad, now on desktop.
Shapr3D is freemium touch-first parametric CAD for iPad, Windows and macOS, suited to stylus sketching, though the best experience still centers on iPad.
Solid Edge
Mainstream parametric CAD software with a free Community edition.
Solid Edge is Siemens parametric CAD for Windows with a free Community edition, adding history-based modelling while reserving the full feature set for paid tiers.
FreeCAD
A parametric 3D modeller for real objects: design by sketching constrained 2D shapes, then change the parameters later.
FreeCAD is free, open-source parametric CAD on Windows, macOS and Linux with production drawings and FEM and CAM workbenches, but a longer learning curve than push-pull modelling.
SolidWorks
Industry-standard parametric CAD software for 3D design and product development.
SolidWorks is industry-standard parametric CAD for Windows with deep assembly and simulation features, but commercial licensing is costly and the learning curve is steep.
Alibre Design
Parametric 3D CAD software for designing mechanical parts and assemblies, with optional CAM add-ons.
Alibre Design is paid Windows parametric CAD for parts and assemblies with optional CAM, FEA and motion add-ons, aimed at small businesses wanting lower-cost mechanical CAD.
IronCAD
Commercial 3D and 2D mechanical CAD software with drag-and-drop design and hybrid modelling.
IronCAD is commercial Windows mechanical CAD combining direct and feature-based modelling with drag-and-drop catalogs, sold through resellers rather than on a free plan.
Similar software
Related functionality, not a direct replacement.
Mayo
An open-source 3D CAD viewer and converter for STEP, IGES, STL and other formats.
Tinkercad
Create simple 3D designs and explore electronic circuits in a browser.
KeyShot
Commercial real-time 3D rendering software for producing product visuals from CAD data.
DesignSpark PCB
Schematic capture and printed circuit board layout software with a free plan and paid tiers.