Best Free CAD Software in 2026: 9 Tools Compared

FreeCAD is the most capable free CAD tool available, and it is open source, so there are no license limits on commercial work. Its parametric workflow lets you change a dimension later without rebuilding the part, and specialized workbenches cover finite element analysis, CAM toolpaths for CNC, architectural design, and robotics. A Python scripting interface and a large add-on community extend it further.

The learning curve is real. The interface packs in many workbenches, and new users can feel lost before their first part takes shape. Large, complex models can also strain stability. But for engineers, product designers, and makers who want a serious tool without a subscription, FreeCAD is the clear first choice.

LibreCAD is the tool for 2D work: floor plans, layouts, schematics, and laser-cut files. It is small, fast, and runs on Windows, Mac, and Linux, with an AutoCAD-like interface that feels familiar to anyone who has drafted before. DXF support makes it easy to share files with other CAD tools and with cutting machines.

It does no 3D modeling at all, and its feature set is simpler than paid drafting tools. But for pure 2D drafting, that simplicity is a strength: it opens fast, stays out of your way, and costs nothing. If your work is plans and layouts rather than parts, LibreCAD is hard to beat.

OpenSCAD takes a different approach: you write code that describes your part, and the program builds the geometry. That makes designs fully parametric and repeatable, and it fits beautifully with 3D printing, where a small change to a dimension should update the whole part. Designs live in text files, so they work with version control like any code.

There is no mouse-driven modeling, so if you want to drag shapes around, OpenSCAD will frustrate you. It also suits programmers far more than visual designers. But for engineers and makers who think in parameters and want exact, reproducible parts, OpenSCAD is a uniquely powerful free tool.

QCAD is the more polished cousin of LibreCAD for 2D drafting. Its community edition is open source and free, with a clean interface, solid dimensioning, and good file support for DXF. It feels closer to a commercial drafting tool than most free options, which makes it a good pick for users who want a professional drafting experience without paying.

The main limit is DWG: full DWG support sits in the paid Pro version, while the free edition leans on DXF. It is also 2D only, like LibreCAD. For technical drawings, floor plans, and workshop drawings, QCAD is the most refined free 2D option here.

Fusion, from Autodesk, is the closest free route to professional CAD. Its personal license gives hobbyists and students real parametric modeling, CAM toolpaths, and simulation, with a huge library of tutorials and community designs. If you are learning CAD for a career, Fusion teaches skills that transfer directly to paid work.

The free license has real limits: a cap on active documents, restricted export formats, and a ban on commercial use. It also requires an Autodesk account and regular online checks. For personal projects, 3D printing, and learning, Fusion is excellent. For commercial work, FreeCAD or Onshape's terms may suit you better.

Onshape Free puts full parametric CAD in your browser, with no install and no powerful computer needed. Multiple people can edit the same design at once, with version history built in, which makes it a strong choice for student teams and open source hardware projects. It runs on Chromebooks and tablets as easily as on desktops.

The catch is privacy: every document on the free plan is public, and commercial use is not allowed. If your designs are open source or schoolwork, that is fine. If you need private or commercial designs, you will need a paid plan or a different tool. For collaborative, public design work, Onshape Free is unmatched.

Tinkercad, also from Autodesk, is where most people should start with 3D design. You build models by combining simple shapes in a browser, with no install and no jargon, and you can be printing your first part within an hour. Teachers love it for classrooms, and it includes circuits and code blocks for learning electronics alongside design.

It is deliberately simple, which means it cannot handle precise engineering drawings, assemblies, or complex parts. Think of Tinkercad as a first step: learn the ideas here, then move to FreeCAD or Fusion when your projects outgrow it. For a first 3D model, nothing here is friendlier.

SketchUp Free is the quickest way to sketch a room, a piece of furniture, or a building concept in 3D. Its push-pull modeling feels intuitive: draw a shape, pull it into a solid, and keep building. The web version runs in a browser, and a large warehouse of shared models gives you furniture and fixtures to drop into a design.

The free version is for personal, non-commercial use, and exports are limited to a few formats, which can frustrate users who need CAD files for manufacturing. It is also a concept tool rather than a precision engineering tool. For visualizing spaces and early ideas, SketchUp Free is fast and enjoyable.

Solid Edge Community Edition brings Siemens professional CAD technology to hobbyists and students for free. It covers 3D part and assembly design, sheet metal, and 2D drafting at a level close to paid tools, which makes it a strong choice for makers who want pro-grade features at home.

It runs on Windows only, it is for personal use rather than commercial work, and its files do not open in the paid version of Solid Edge. Drawings carry a watermark. Within those limits, though, it is one of the most capable free CAD packages available, especially for sheet metal and mechanical design.