Professional CAD software used to cost thousands of dollars per year, putting it out of reach for students, hobbyists and small teams. In 2026, that has changed dramatically. There are now several genuinely capable free CAD tools available that cover everything from basic 2D drafting to full parametric 3D solid modeling and even simulation. This guide covers the best free CAD software available right now, who each one is best suited for and what you can realistically achieve with each tool without spending a single dollar. Fusion 360 — Best Overall Free CAD Tool Fusion 360 from Autodesk is the strongest free CAD option available for most users in 2026. The free personal use license covers parametric 3D modeling, assemblies, basic simulation, rendering and integrated CAM for CNC machining — a feature set that would cost thousands of dollars per year in competing professional tools. Fusion 360 runs on both Windows and Mac, stores files in the cloud for easy access from multiple devices and has one of the largest and most active communities of any CAD tool. The learning curve is moderate but well supported by an enormous library of free tutorials, official Autodesk courses and community resources. For hobbyists, makers, students and early-stage startups, Fusion 360 is almost always the right choice and the free license covers everything the vast majority of personal users need. FreeCAD — Best Open Source Option FreeCAD is a fully open-source parametric CAD tool that runs on Windows, Mac and Linux. It is completely free with no license restrictions — you can use it commercially, modify it and redistribute it without any fees or limitations. FreeCAD uses a workbench-based interface where different design workflows — solid modeling, sheet metal, FEM simulation, architecture — are organized into separate environments. The Part Design workbench is the most commonly used for mechanical parts and supports the same sketch-based parametric workflow as tools like Fusion 360 and SolidWorks. FreeCAD has historically had a steeper learning curve and a less polished interface than commercial tools, but significant improvements in recent versions have made it much more accessible to beginners. For users who need a completely free tool with no usage restrictions or cloud dependency, FreeCAD is the best open-source option available. Onshape — Best Browser-Based CAD Onshape is a professional-grade parametric CAD tool that runs entirely in a web browser — no installation required. The free plan gives hobbyists and students access to the full feature set of the tool, with the limitation that all documents on the free plan are publicly visible. For professional work requiring private documents, a paid subscription is needed. Onshape's parametric modeling capabilities are on par with SolidWorks and Fusion 360, and its browser-based nature makes it uniquely accessible — you can design on any computer, tablet or even a phone without installing anything. Onshape is particularly strong for collaborative work since multiple users can edit the same document simultaneously in real time, similar to Google Docs but for CAD. For students and educators, Onshape offers free educational licenses with private document storage. TinkerCAD — Best for Absolute Beginners TinkerCAD from Autodesk is the most beginner-friendly CAD tool available and is completely free with no restrictions. It runs in the browser and uses a simple drag-and-drop interface based on combining and subtracting primitive shapes — boxes, cylinders, spheres and so on — rather than the sketch-based parametric approach of professional tools. This makes it extremely easy to learn but limits what you can design. TinkerCAD is ideal for complete beginners, children and anyone who needs to create simple 3D printable objects without spending time learning parametric CAD concepts. It is not suitable for complex mechanical parts, large assemblies or anything requiring precise parametric control, but for quick, simple designs it is unmatched in ease of use. SolveSpace — Best Lightweight Option SolveSpace is a small, fast, open-source parametric CAD tool that runs on Windows, Mac and Linux. The entire application is under 10MB in size — smaller than most browser tabs — yet it supports full 3D parametric solid modeling, constraint-based sketching, assemblies and even basic FEM analysis. SolveSpace has a minimalist interface that takes some getting used to, but once you learn the workflow it is remarkably capable for its size. It is particularly well suited to users who want a lightweight desktop CAD tool that works well on older or lower-powered hardware where Fusion 360 or FreeCAD might run slowly. LibreCAD — Best for 2D Drafting LibreCAD is a free, open-source 2D CAD tool focused entirely on technical drawing and drafting. It does not do 3D modeling at all — its focus is on producing precise 2D technical drawings, floor plans, engineering diagrams and DXF files for laser cutting and