Open Source 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.

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...

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.

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.

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.

tscircuit is a framework for designing real electronics with Typescript and React. Your tscircuit code compiles into real-time previews for PCBs, schematics, 3D models and can be exported to fabrication files for manufacturing.

CadQuery is an intuitive, easy-to-use python based language for building parametric 3D CAD models. CadQuery is for 3D CAD what jQuery is for javascript. Imagine selecting Faces of a 3d object the same way you select DOM objects with JQuery!

Sverchok is a parametric tool for architects and designers. You can use it to program objects' shapes without knowing any programming languages.

SALOME can be used as standalone application for generation of CAD models, their preparation for numerical calculations and post-processing of the calculation results. SALOME can also be used as a platform for integration of the external third-party numerical codes to produce a...

Gmsh is a 3D finite element grid generator with a build-in CAD engine and post-processor. Its design goal is to provide a fast, light and user-friendly meshing tool with parametric input and advanced visualization capabilities.

OpenJSCAD.org is a more up-to-date OpenJsCAD frontend where you can edit .jscad files either locally or online via JS editor (built-in). A few functions are available to make the transition from OpenSCAD to OpenJSCAD easier (OpenSCAD.