FreeCAD
FreeCAD is an open-source parametric 3D modeler made primarily to design real-life objects of any size. Parametric modeling allows you to easily modify your design by going back into your model history and changing its parameters. FreeCAD allows you to sketch geometry constrained 2D shapes and use them as a base to build other objects. It contains many components to adjust dimensions or extract design details from 3D models to create high quality production ready drawings. FreeCAD is a multiplatfom (Windows, Mac and Linux), highly customizable and extensible software. It reads and writes to many open file formats such as STEP, IGES, STL, SVG, DXF, OBJ, IFC, DAE and many others, making it possible to seamlessly integrate it into your workflow. FreeCAD is designed to fit a wide range of uses including product design, mechanical engineering and architecture. Whether you are a hobbyist, a programmer, an experienced CAD user, a student or a teacher, you will feel right at home with FreeCAD.
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Autodesk Fusion
Autodesk Fusion is a cloud-based product design and manufacturing platform that combines CAD, CAM, CAE, PCB, and data management in one solution. It helps teams connect design, engineering, manufacturing, electronics, and collaboration workflows in a unified workspace. The software supports product development from concept to production with tools for modeling, simulation, machining, PCB design, and drawing automation. Autodesk Fusion also includes built-in PDM and PLM capabilities to reduce version conflicts, improve collaboration, and keep project data secure and up to date. Teams can choose from Fusion, Fusion for Manufacturing, and Fusion for Design depending on their needs for advanced manufacturing, simulation, generative design, and data management. With cloud collaboration, integrated workflows, and AI-powered assistance, Autodesk Fusion helps companies bring products to market faster.
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Simcenter Simsolid
Simcenter Simsolid is a Siemens simulation and structural analysis tool that helps designers and engineers analyze fully featured CAD assemblies without geometry simplification or meshing. By removing two of the most time-consuming steps in traditional FEA, it allows teams to validate structural performance much faster. The software can handle large and complex assemblies, including models with rough contact surfaces, gaps, or overlapping geometry. Simcenter Simsolid delivers accurate results in seconds to minutes on a standard PC, making it useful for rapid design comparison and simulation-driven development. It supports a wide range of analysis types, including linear and nonlinear statics, thermal analysis, modal analysis, fatigue analysis, dynamic simulations, buckling, composites, and random response. With CAD interoperability, advanced connections, materials, boundary conditions, and visualization tools, Simcenter Simsolid helps teams bring better products to market faster.
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OwlCAD
OwlCAD is parametric 3D CAD that runs in your browser, built for designing parts to 3D print. It sits between beginner tools people outgrow and professional CAD that needs an install and a learning curve.
Every dimension stays editable: change a value and the model rebuilds. Booleans are manifold by construction, clearance presets size press, slip and loose fits for FDM, and a printability check flags overhangs, thin walls and leaks before export.
Includes constrained sketches, per-edge fillets and chamfers, patterns, sweep and loft, assemblies with mates and a bill of materials, and 30+ generators for gears, threads, enclosures, Gridfinity bins and hinges. Imports STL, 3MF, OBJ, STEP and OpenSCAD; exports STL, 3MF, OBJ, GLB, STEP, DXF and SVG.
AI generation turns a prompt into an editable model or a sculpted mesh. Also available as a desktop app and an MCP server for AI agents.
Nothing to install, no account needed to start.
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