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

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  • 1
    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: 12,835 This Week
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  • 2
    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: 1,887 This Week
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  • 3
    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: 11 This Week
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  • 4
    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: 251 This Week
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  • 5
    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: 86 This Week
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  • 6
    KiCad EDA

    KiCad EDA

    A Cross Platform and Open Source Electronics Design Automation Suite

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    Downloads: 133 This Week
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  • 7

    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: 38 This Week
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  • 8
    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. Code source : https://github.com/c-marcel/conducteo Installeurs Linux/Debian et Windows : https://github.com/c-marcel/conducteo/releases Installeurs macOS : https://github.com/Neocle/conducteo/releases/tag/macOS
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    Downloads: 23 This Week
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  • 9
    CIMCO

    CIMCO

    Any tools for CIMCO Software (mostly CIMCO Edit), CIMCO Edit crack

    CTranslate - this is not official tool for edit CIMCO Software language files * MSG directory
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    Downloads: 37 This Week
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  • 10

    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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  • 11
    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: 18 This Week
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  • 12
    OpenWAM
    The 1-dimensional gas-dynamics code. More information in http://www.openwam.com Modeling is an important technique for the optimization of internal combustion engines (ICE). The use of calculation models together with experimental tests is producing unquestionable successes due to the fact that both techniques complement each other. 1D wave action models simplify the engine by means of ducts, where only one dimension is considered, and volumes where mass accumulation is considered and the gas properties are uniform in the entire element. Finally, non dimensional models are used to solve connections between 1D and 0D elements. Thanks to more than 20 years, more than 10 PhD Thesis and many research projects and publications, CMT-Motores Térmicos has developed an own 1D gasdynamic tool called OpenWAMTM which gathers an important know-how on air management, compressible flow, turbocharging, chemical species tracking, numerical analysis and many other aspects of engine modeling.
    Downloads: 16 This Week
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  • 13
    Tochnog Finite Element Analysis
    Explicit/Impicit Finite Element Program with linear/nonlinear, elastic/hyperelastic/hypoelastic/plastic/visco, contact,thermal, fluid capabilities. h/p refinements. Parallel/Distributed solvers available. No shell elements but has 2D beams, trusses.
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    Downloads: 15 This Week
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  • 14
    BlenderCAD
    Our primary goal is to create a great, full featured, 3D CAD environment for Blender for use by engineers, designers, drafters, architects, etc. based on the OpenCascade toolkit.
    Downloads: 8 This Week
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  • 15
    Lima VVA

    Lima VVA

    Simple Road Design and Earthworks

    Lima VVA is a lightweight Windows application for road design and earthwork calculation. It is suitable for small to medium projects, where ease-of-use, low cost and quick results are paramount. It lets the user design the road interactively, while the geometry and earthwork quantities are automatically calculated in the background. By manipulating the construction parameters, other earthworks can be calculated, such as ditches, embankments, land fills, building sites — in short, anything suitable for the cross-section method. The program produces high quality drawings, reports, and construction data for the design. These results can be exported to other systems such as office, CAD and GIS software, surveying equipment, and systems for automated machine control.
    Downloads: 8 This Week
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  • 16

    StyroFoamRobot

    Cuts 3D objects from polystyrene foam (EPS/XPS)

    A robotic DIY styrofoam cutter consisting of one rotational and two translational axes. It cuts a variety of shapes out of styrofoam-like materials using a hot wire. This project documents the necessary hardware and software parts. Don't miss the follow-up project at http://raumschaum.org Its goal is to further develop hardware and software into an user friendly application.
    Downloads: 4 This Week
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  • 17
    Pyslvs

    Pyslvs

    Open Source Planar Linkage Mechanism Simulation and Synthesis Software

    Downloads: 3 This Week
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  • 18
    A Simple 2D CAD/CAM application (currently Windows-only) Cuts simple shapes (pockets, mostly) and simplified gears. It has a geometry mode that allows geometry defined by lines and arcs. It also generates geometry from any OpenType-style font!
    Downloads: 3 This Week
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  • 19
    Wuweido 3D CAD

    Wuweido 3D CAD

    Free 3D Mobile CAD

    Wuweido is a professional 3D CAD on your phone or tablet. More than just a viewer, dozens of modeling tools are provided to create and modify 3D models in the most natural way. Wuweido allows you to import and export models in standard CAD format. Unlike Onshape™ on Cloud, Wuweido is running locally on your device and it's more like Rhino™ 3D on mobile. Wuweido is powered by OPEN CASCADE. OPEN CASCADE is an incredible powerful geometry kernel innovating quickly. Wuweido is inspired by CAD Assistant. Modeling features: 1. Draft creation tools: Line, Poly Line, Arc, Spline, Circle, Ellipse, Rectangle, Regular Polygon. 2. Primitive Solid creation tools: Box, Cone, Truncated Cone, Cylinder, Sphere, Torus, Wedge, Truncated Wedge, Pyramid, Truncated Pyramid. 3. Sweep modeling tools: Extrude, Revolve, Loft, Pipe, Path 4. Boolean operation tools: Intersect, Subtract, Union, Xor, Fuse 5. Transform tools: Move, Rotate, Mirror, Scale
    Downloads: 3 This Week
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  • 20
    Voxel CAD. Open source voxel editing and analyzing software. Edit and create multi-material voxel objects. Simulate the dynamics in a quantitative physics sandbox to test engineering designs or make moving creatures. www.voxcad.com for videos.
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    Downloads: 1 This Week
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  • 21
    Abaqus Job Tracker

    Abaqus Job Tracker

    Track an Abaqus job to show the progress of the Step solution

    Reads the .STA file from the specified folder and track the associated Abaqus job to show the progress of the Step solution.
    Downloads: 1 This Week
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  • 22

    Alternative Logic Sets CAD

    ALST is a CAD for all imaginable logic systems (binary, ternary, etc)

    This project is available in the source code form (CodeEye' MixFile) only.
    Downloads: 1 This Week
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  • 23
    BoltGenerator

    BoltGenerator

    BoltGenerator is an automated CAD tool which produces 3D bolts.

    BoltGenerator is an automated CAD tool which produces 3D bolts per ISO and ASME specifications, built using OpenCASCADE and Qt technologies. Users select their desired thread, head type, and length. Upon export, a fully-featured CAD part is generated in real-time and written to the universal STEP format. The exported files are consistently named based on user selections, making creation and organization simple.
    Downloads: 1 This Week
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  • 24

    CADauno

    3D modeling tool based on the NURBS surfaces

    CADauno is a 3D modeling tool based on the NURBS surfaces. It aims at exploiting the NURBS power at representing free forms, as NURBS are the industry standard for the representation and design of geometry. It's written in C++, based on OpenGL.
    Downloads: 1 This Week
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  • 25
    LibrePLM

    LibrePLM

    LibrePLM integrates CAD editors in Odoo / LibrERP

    Save and manage Engineering informations from CAD system directly in Odoo or LibrERP. Integrated in CAD system, allows complete Product Lifecycle control. Reduce time to market, improve your business and avoid trivial errors. Server New Release : 2025 Q3 - Release on Odoo version 19.0. Client New Release : 2026 Q1 - Added Draftsight integration. Supported: Windows 11. Added new tool GetNodeID to help you asking activation code. Have more info : https://sourceforge.net/p/libreplm/wiki/Home Odoo is a product of Odoo SA world class leader in Open Source ERP system. Visit: http://www.odoo.com LibreERP and LibrePLM are products of Codebeex srl. Visit: http://www.codebeex.com Download Free Trial Client. Need support, customizations, more? Ask to: info@codebeex.com
    Downloads: 1 This Week
    Last Update:
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