Free CAD Software

A versatile open-source 3D CAD modeler with modular architecture, suitable for engineering applications across multiple platforms, supporting Python scripting.

LibreCAD is an open source 2D CAD application for Windows, Apple and Linux. It is based on Qt, which is a leading cross-platform application and UI development framework.

KiCad is an open source software suite for electronic design automation (EDA) - designing schematics of electronic circuits and printed circuit boards (PCB). KiCad is developed by Jean-Pierre Charras. And features an integrated environment between schematic capture, bill of...

OpenSCAD is a software for creating solid 3D CAD objects. It is free software and available for Linux/UNIX, MS Windows and MacOS.

Dune 3D operates as a parametric 3D Computer-Aided Design (CAD) software. It provides users with the capability to sketch and constrain both in 2D and 3D dimensions. Furthermore, it allows for the addition of chamfers and fillets to designs.

Onshape is a professional CAD system – Parts, Assemblies, Drawings – with version control and collaboration built in. Each Onshape plan (Free, Education, Professional, and Enterprise) gives you all of the CAD and data management functionality with no time limit.

Integrated CAD, CAM, and CAE platform with cloud-based modeling, simulation, and manufacturing tools plus collaborative features. Free licenses for students, hobbyists, and startups.

BRL-CAD is a powerful cross-platform open source solid modeling system that includes interactive geometry editing, high-performance ray-tracing for rendering and geometric analysis, image and signal-processing tools, a system performance analysis benchmark suite, libraries for...

Tinkercad is a super easy-to-use, browser based 3D design tool. With Tinkercad you can create 3D printable items: toys to play with, decoration to light up your home or jewelry to express yourself. You dream it, you can make it!

LibrePCB is a free EDA software to develop printed circuit boards. It’s currently under heavy development to bring out first stable releases as soon as possible.

CAD Sketcher is a free and open-source project looking to enhance precision workflows in Blender by bringing CAD like tools, features and usability to Blender.

The open source text to CAD web app.

From design to manufacturing. Teams collaborate with more impact. Instinctive design meets multidevice capability and full interoperability for the ultimate 3D design workflow.

SolveSpace is a parametric 3D CAD program with extrude, revolve, union and difference functions. Save/Export as DXF, PDF, SVG, STL, STEP. Mesh generation expected by most 3d printers. Constraint solver point tracing for motion analysis.

QCAD is an application for computer aided drafting in 2D. With QCAD you can create technical drawings such as plans for buildings, interiors, mechanical parts or schemas and diagrams.

LeoCAD is a CAD program for creating virtual LEGO models. It has an easy to use interface and currently includes over 6000 different pieces created by the LDraw community.

QElectroTech is a free software to create electric diagrams. QElectroTech is under GNU/GPL license. It is currently available for Windows, Mac OS and Linux.

Rayon is a web-based collaborative architectural design tool. It supports various file formats, including PDF, CAD documents, and image files, allowing for diverse uses like image-based surface styling.

The professional furnishing 2D-/3D-tool for everybody: The pCon.planner is a cost-free application allowing you to comfortably and professionally create complex furnishing concepts and to visualize them in a photo-realistic quality. File Formats: dwg, dxf, 3ds, skp, ... Language.

The gEDA project has produced and continues working on a full GPL'd suite and toolkit of Electronic Design Automation tools. These tools are used for electrical circuit design, schematic capture, simulation, prototyping, and production.

Antimony is a computer-aided design (CAD) tool from a parallel universe in which CAD software evolved from Lisp machines rather than drafting tables.

Parametric 2D and 3D CAD modeler running client side in the web browser.

CaDoodle is a local drag-and-drop CAD application for Linux (Arm,x86), WIndows (X86), and Mac (Arm,x86) and ChromeOS. Users models are stored locally, and the application runs entirely locally. CaDoodle has a drag and drop interface that is cross-trainable with TinkerCAD.

An add-on for beautiful, detailed, and data-rich OpenBIM with Blender. It was named BlenderBIM until 2024. It uses the ifcopenshell.

Blender CAM is an open source solution for artistic CAM - Computer aided machining - a g-code generation tool.

Blender CAM is an add-on for the free open-source Blender 3d package.