CAD Software for Windows

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Browse free open source CAD software and projects for Windows below. Use the toggles on the left to filter open source CAD software by OS, license, language, programming language, and project status.

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  • 1
    LibreCAD

    LibreCAD

    Cross-platform Open-source 2D CAD

    LibreCAD is an open-source cross-platform 2D CAD program, which is translated in over 30 languages. LibreCAD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. License: https://www.gnu.org/licenses/gpl-2.0.html Source: https://github.com/LibreCAD/LibreCAD/releases Track the latest development: https://github.com/LibreCAD/LibreCAD/milestones https://github.com/LibreCAD/LibreCAD/commits/master Create bug reports and feature requests: https://github.com/LibreCAD/LibreCAD/issues Get help: - https://forum.librecad.org - https://dokuwiki.librecad.org - https://librecad.readthedocs.io/
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    Downloads: 2,279 This Week
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  • 2
    FreeCAD

    FreeCAD

    a parametric 3D CAD modeler

    This is an official mirror of FreeCAD. Code and release files are primarily hosted on https://github.com/FreeCAD/FreeCAD and mirrored here. FreeCAD is a general purpose feature-based, parametric 3D modeler for CAD, MCAD, CAx, CAE and PLM, aimed directly at mechanical engineering and product design but also fits a wider range of uses in engineering, such as architecture or other engineering specialties. It is 100% Open Source and extremely modular, allowing for very advanced extension and customization. FreeCAD is based on OpenCasCade, a powerful geometry kernel, features an Open Inventor-compliant 3D scene representation model provided by the Coin 3D library, and a broad Python API. The interface is built with Qt. FreeCAD runs exactly the same way on Windows, Mac OSX and Linux platforms.
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    Downloads: 1,432 This Week
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  • 3
    dxf2gcode

    dxf2gcode

    DXF2GCODE: converting 2D dxf drawings to CNC machine compatible G-Code

    DXF2GCODE is a tool for converting 2D (dxf, pdf, ps) drawings to CNC machine compatible GCode. Windows, Linux, and Mac support by using python scripting language.
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    Downloads: 401 This Week
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  • 4
    TexGen
    TexGen is a geometric textile modelling software package to be used for obtaining engineering properties of woven textiles and textile composites. Citing TexGen We would be grateful if you could acknowledge use of TexGen where appropriate and suggest using one of the following references: L P Brown and A C Long. "Modelling the geometry of textile reinforcements for composites: TexGen", Chapter 8 in "Composite reinforcements for optimum performance (Second Edition)", ed. P Boisse, Woodhead Publishing Ltd, 2021, ISBN: 978-0-12-819005-0. https://doi.org/10.1016/B978-0-12-819005-0.00008-3 Lin, H., Brown, L. P. & Long, A. C. 2011. Modelling and Simulating Textile Structures using TexGen. Advanced Materials Research, 331, 44-47. To reference version 3.13.0 please use: Louise Brown, mike-matveev, & georgespackman. (2023). louisepb/TexGen: TexGen v3.13.1 (v3.13.1). Zenodo. https://doi.org/10.5281/zenodo.8221491
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    Downloads: 167 This Week
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  • 5

    Frame3DD

    Static and Dynamic Structural Analysis of 2D and 3D frames.

    FRAME3DD is a program for the static and dynamic structural analysis of two- and three-dimensional frames and trusses with elastic and geometric stiffness.
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    Downloads: 105 This Week
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  • 6
    PyCAM
    Open Source CAM - Toolpath Generation for 3-Axis CNC machining
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    Downloads: 76 This Week
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  • 7
    FreeCAD Link branch

    FreeCAD Link branch

    Link branch FreeCAD

    This is the Link branch FreeCAD, with lots of new features and enhancements. This branch is originally created to develop the App::Link feature for use with my Assembly3 workbench. The feature has since been merged with official FreeCAD, but the branch stayed and became the forefront of what future FreeCAD might become. Its function now is to continuously improve and test the Topological naming problem and its fix. Which I eventually plan to merge back into the FreeCAD main branch.
    Downloads: 11 This Week
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  • 8
    Seamly2D

    Seamly2D

    Free and open source pattern design software

    Seamly2D enables the design, reuse, and remix of digital sewing patterns for creating bespoke-fit, specialty-sized, and ready-to-wear-sized clothing. Users have the right to utilize, sell, share, and distribute their patterns in any way they choose. * Downloads: https://seamly.io * Support: https://forum.seamly.io * Code: https://github.com/fashionfreedom/seamly2d * License: GPLv3+
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    Downloads: 238 This Week
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  • 9
    LeoCAD

    LeoCAD

    A CAD application for creating virtual LEGO models

    Design virtual models you can build with LEGO® bricks. LeoCAD has an intuitive interface that is designed to allow new users to start creating new models without having to spend too much time learning the application. At the same time, it has a rich feature set that enables experienced users to build models by using techniques that are more advanced. LeoCAD is fully compatible with the LDraw Standard and related tools, and it reads and writes LDR and MPD files so that you can share and download models from the Internet. It also uses the LDraw parts library, which has over 10,000 different parts and continues to receive updates. Native versions are available for Windows, Linux, and macOS to ensure that users are familiar with the program interface. LeoCAD is open-source, so anyone can contribute with fixes and features, and it is always going to remain free.
    Downloads: 8 This Week
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    Dominate AI Search Results

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  • 10
    An STL format importer/exporter plugin script for Google SketchUp. Supports both binary and ASCII import and export.
    Downloads: 49 This Week
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  • 11
    This small program can help you to calculate optimal cut of rectangular details. It can be used to design cutting out of wood, glass, steel and other material.
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    Downloads: 32 This Week
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  • 12
    KiCad EDA

    KiCad EDA

    A Cross Platform and Open Source Electronics Design Automation Suite

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    Downloads: 149 This Week
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  • 13
    conducteo

    conducteo

    conducteö - logiciel de calcul des ponts thermiques linéiques

    conducteö est un logiciel de modélisation et de simulation des ponts thermiques linéiques, conforme à la RT 2012 et aux principales normes européennes concernant les ponts thermiques.
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    Downloads: 48 This Week
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  • 14
    CADAM

    CADAM

    CADAM is the open source text-to-CAD web application

    CADAM is an open-source “text-to-CAD” web application that turns natural-language prompts into parametric 3D models, targeting a workflow where you describe what you want and the system produces editable geometry. It is designed around a browser-first experience, so users can iterate quickly without installing a heavyweight desktop CAD suite for every experiment. A key idea is that the generated output is parametric and scriptable, enabling repeatable edits and variations rather than a one-off mesh result. The project integrates modern web tooling and a backend stack to manage sessions, model generation requests, and persisted outputs, making it usable as an actual product rather than only a demo. It’s also built to support an agentic workflow, where the system can refine outputs over multiple steps, bridging the gap between intent (“a bracket with four mounting holes”) and precise geometry.
    Downloads: 3 This Week
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  • 15
    OdooPLM

    OdooPLM

    A Full PLM system based on odoo

    OdooPLM is an Open Source Odoo Application that allows you to manage PLM Data inside Odoo. You can upload data from the most common commercial CAD systems directly to Odoo with a unique and easy to use interface. Our approach, very quick, ready to use, is very useful for all companies that wants useful and powerful tools. You can install PLM module and its Client without any cost, touching the quality of our product in your real work environment. Official OdooPLM website https://odooplm.omniasolutions.website/ Try OdooPLM on Cloud at: https://www.v15.odooplm.cloud/ This project is maintained by OmniaSolutions. Find us at https://www.omniasolutions.website Odoo is a product of Odoo SA, world class leader in Open Source ERP system. Find it at https://www.odoo.com
    Downloads: 19 This Week
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  • 16
    Libre Mechanics

    Libre Mechanics

    Open Knowledge on engineering development.

    Libre Mechanics it’s an Open Knowledge project created to offer a useful platform of information related with the development and research of Mechanical Engineering themes and similar fields, higly related with the use of Open Source and Software Libre tools. Here you will find a wide variety of projects, publications and scientific material available as references for developing their own projects, also guides and tutorials that allow you to take advantage of free software tools available today. The four principal lines of work are: Design Analysis and Simulation Automation and Robotics Development
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    Downloads: 28 This Week
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  • 17
    KicadCGS

    KicadCGS

    Библиотека УГО компонентов для Kicad

    Eng: The library of Conventional Graphic Symbols (CGS) for Kicad is based on russian international standards also known as GOSTs. Рус: Библиотека компонентов для Kicad, созданных в полном соответствии с требованиями УГО по международным нормативам ГОСТ.
    Downloads: 33 This Week
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  • 18

    libdxfrw

    library to read dwg & read/write dxf files

    c++ library to read/write DXF files in binary and ascii form and to read DWG from r14 to v2015 Continued at: https://github.com/LibreCAD/libdxfrw
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    Downloads: 16 This Week
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  • 19
    ImplicitCAD

    ImplicitCAD

    A math-inspired CAD program in haskell. CSG, bevels, and shells

    ImplicitCAD is a programmatic CAD program, implemented in Haskell. Unlike traditional CAD programs, programmatic CAD programs use text descriptions of objects, as in programming. Concepts like variables, control structures and abstraction are used, just as in programming. With the explosion of 3D printing, designing 3D objects has become an even more important problem. And it's a complicated one. We need to design complicated objects that precisely interface with each other. And often we don't want to just design a single object, but classes of objects, parameterized by variables. And we need to do this in collaboration. Generally, objects in programmatic CAD are built with Constructive Solid Geometry or CSG. Unions, intersections and differences of simpler shapes slowly build the object. ImplicitCAD supports all this and much more! For example, it provides rounded unions so that one can have smooth interfaces between objects.
    Downloads: 1 This Week
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  • 20
    PythonCAD

    PythonCAD

    CAD Application entire developed in Python

    PythonCAD is a CAD package written, surprisingly enough, in Python using the PySide2 interface and python3. The PythonCAD project aims to produce a scriptable, open-source, easy to use CAD package (Cross Platforms)
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    Downloads: 11 This Week
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  • 21

    Techne (R) CAD/CAM

    2.5D CAD CAM emphasis on CAM and toolpaths

    A Windows only 2.5D CAD CAM application. The user experience tightly integrates the CAM aspects when doing design and layout. The target users will layout their design and then immediately generate CNC code. The goal is a design application closer to Adobe Illustrator than to AutoCAD. The user specifies machining aspects during object creation so that when the design/layout phase is completed the toolpath generation can occur automatically. What is 2.5D? Objects created are flat (2D) but have a depth component. So you can create a square that will be machined at a specific depth but the depth will be constant accross the square. It is not/does not: A general purpose CAD (AutoCAD) type program. Support reference dimension on the drawing. Export or import major CAD file formats.
    Downloads: 6 This Week
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  • 22
    Impact Finite Element Program
    Impact is an explicit Finite Element Program Suite which simulates dynamic impact events. It has a range of elements, contact handling and different material laws. Models can be created, solved and analyzed with the included pre- and postprocessor. Impact is based on an Explicit Time stepping algorithm. These kind of codes are used to simulate dynamic phenomena such as car crashes and similar, usually involving large deformations.
    Downloads: 4 This Week
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  • 23
    jEPlus - Parametrics for E+ and TRNSYS

    jEPlus - Parametrics for E+ and TRNSYS

    An EnergyPlus shell for parametric studies and more ...

    Parametric analysis is often needed for exploring design options, especially when a global optimization method is not available, or the optimization result is in doubt. Parametric analysis can also be applied to all design variables simultaneously, which forms an exhaustive search that, providing that the search grid is fine enough, will guarantee a global optimum solution. In order to perform complex parametric analyses on multiple parameters with more than a handful of alternative values each, a tool to generate commands for the simulation model to run, and to collect results afterwards will be needed. jEPlus has been developed as such a parametric tool for EnergyPlus. To see jEPlus in action, check out this video: http://youtu.be/jBA7Q7npNK4 The source code of the jEPlus project is now hosted on GitHub: https://github.com/jeplus/jEPlus/
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    Downloads: 19 This Week
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  • 24
    Make sure to download from the link below and not the big giant button. I'm not sure how to fix that, so if you know!
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    Downloads: 19 This Week
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  • 25
    PotterDraw

    PotterDraw

    Design your own pottery for 3D printing in full color

    PotterDraw is a free 3D software application for designing and visualizing pottery. It’s useful for creating cylindrical shapes such as pots, flasks, vases, bowls, plates, cups, glasses, goblets, or anything similar. The outer wall of the pot is drawn using a spline, which consists of one or more curved or linear segments. The inner wall is generated automatically. PotterDraw can export files suitable for 3D printing. It can also map synthesized or user-specified textures onto the pot. Mesh and texture properties can be modulated by oscillators for more complex effects, and the modulations can be animated to create videos.
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    Downloads: 17 This Week
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