Open Source Windows CAD Software
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CAD Software for Windows
View 179 business solutionsBrowse 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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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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SolidCraft
SolidCraft: an open-source parametric 3D CAD application
SolidCraft is an open-source parametric 3D computer-aided design application built entirely in Rust for mechanical modeling and engineering workflows. It allows users to create constrained sketches and transform them into editable solid models through operations such as extrusion, filleting, and shelling. A parametric feature timeline preserves modeling history and automatically rebuilds geometry when dimensions change. The software supports assemblies, reusable parameters, and geometric measurements. It runs on Windows, macOS, Linux, and web browsers without requiring proprietary CAD infrastructure. A command-line interface enables scripted modeling, rendering, and file exports. SolidCraft also includes a Model Context Protocol server that allows AI agents to create, inspect, and modify designs through structured commands. Its architecture supports interactive design and automated engineering workflows. -
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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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CADCraft
CADCraft: computer-aided design and drafting
CADCraft is an open-source 2D drafting application written in pure Rust as a clean-room reimplementation of familiar AutoCAD workflows. It provides a command line, object snaps, polar tracking, layers, dimensions, hatches, blocks, layouts, plotting, and parametric constraints. Drawing and modification commands cover lines, polylines, circles, splines, offsets, trimming, arrays, grips, and many other common CAD operations. DXF files from R12 through 2018 are handled natively, while DWG support is provided through the open-source acadrust library. Paper space, viewports, page setups, PDF plotting, SVG export, and PNG export are also available. Every CAD operation can be driven through the UI, CLI, JSON control channel, or MCP server. Native builds target macOS, Windows, Linux, and FreeBSD, with a WebAssembly version for browsers. -
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VirtualSatellite
Virtual Satellite
Virtual Satellite is a DLR open source software for model based systems engineering MBSE. One of the major features of Virtual Satellite is the modular data model, that can be easily customized to your personal needs. Today, there are already various different versions: - Virtual Satellite 4 - Core is the entry point to start developing and the basis for all other versions - Virtual Satellite 4 - CEF is a specialized version for the use in our Concurrent Engineering Facility - Virtual Satellite 4 - FDIR is a research version for Failure Detection, Isolation and Recovery - Virtual Satellite 4 - DEV IDE is a spezial Eclipse IDE for easy and fast VIrtual Satellite development. This project contains the deployed artefacts from the Virtual Satellite Eco-System. Donwnloads for Virtual Satellite 4 Core are also provided. The artefacts contain p2 builds for: - Daily development builds - Regular integration builds - Specific release builds -
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Ink/Stitch
Ink/Stitch: an Inkscape extension for machine embroidery design
Ink/Stitch is a free, open-source machine embroidery design extension for Inkscape. It transforms vector graphics into stitch patterns compatible with embroidery machines. Users can create detailed designs using running stitches, satin stitches, fill patterns, and manual stitch placement. The software provides customizable stitch parameters, underlays, and routing tools for optimizing embroidery results. Its lettering system includes pre-digitized fonts and support for custom embroidery fonts. Users can preview stitch sequences through an animated simulator and generate detailed PDF production sheets. Ink/Stitch also supports thread color management and importing or exporting popular embroidery formats. Available for Windows, macOS, and Linux, it serves hobbyists and professional embroidery digitizers. -
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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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QElectroTech
Libre and open source desktop application to create diagrams
QElectroTech is a free, open-source computer-aided design application for creating electrical diagrams and technical schematics. It is primarily designed for electrical documentation but also supports pneumatic, hydraulic, electronic, and industrial process diagrams. The software provides an extensive library of standardized symbols that users can arrange through a drag-and-drop interface. It includes tools for creating custom symbols, editing connections, and organizing diagrams across multiple sheets. Users can generate cross-references, customize title blocks, and automatically create project tables of contents. QElectroTech also supports exporting component information for external documentation. Available for Windows, macOS, and Linux, it helps technicians, engineers, and designers produce professional schematic documentation without built-in circuit simulation. -
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Materializr
Open-source parametric 3D CAD for makers
Materializr is a free, open-source parametric 3D CAD application designed for makers, hobbyists, and technical designers. It provides an accessible interface for creating precise solid models without requiring complex professional CAD software. Users can draw dimensioned sketches with geometric constraints and transform them into three-dimensional objects. Its OpenCASCADE geometry engine supports extrusion, lofting, fillets, chamfers, and Boolean operations. The software includes tools for creating screw threads, engraving text, and embossing designs onto curved surfaces. An editable feature history allows earlier modeling steps to be modified after saving projects. Available for Windows, macOS, Linux, Android, and iPad, Materializr supports exporting models for 3D printing and fabrication. -
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Open CAD Studio
A CAD application built with Rust
Open CAD Studio is a free, open-source computer-aided design application for 2D drafting and 3D modeling. Built with Rust, it provides desktop and browser-based editing environments. Users can open, modify, and save DWG and DXF drawings without relying on an external conversion service. Drafting tools include lines, polylines, splines, dimensions, layers, blocks, and object snapping. Its solid modeling engine supports extrusion, revolution, lofting, and Boolean operations. GPU-accelerated rendering provides orthographic and perspective views. The application also supports plotting, PDF output, mesh importing, and CAD data exporting. Plugins, scripts, and a JSON automation API extend functionality across supported platforms. -
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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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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. -
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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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QymCAD
Parametric 3D CAD with a real B-rep kernel (OpenCASCADE)
QymCAD is a free, open-source parametric 3D CAD application for mechanical design, product development, and manufacturing. It uses the OpenCASCADE boundary representation kernel to create precise solid geometry rather than polygonal approximations. Users can construct sketches with geometric constraints, mathematical dimensions, and associative references. Its modeling tools support extrusion, revolution, lofting, sweeping, fillets, chamfers, holes, and patterns. Parts can be combined into assemblies using configurable joints, movement limits, and interference checks. Parametric history automatically rebuilds dependent geometry when dimensions or earlier operations change. The application supports STEP, STL, DXF, and SVG import and export. Available for Windows, macOS, and Linux, QymCAD stores projects locally without requiring cloud services. -
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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. -
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dxf2gcode
DXF2GCODE: converting 2D dxf drawings to CNC machine compatible G-Code
DXF2GCODE converts 2D drawings (DXF, PDF, PS) into G-code for CNC machines. **Development has moved to GitHub!** The next version of dxf2gcode is being developed at: https://github.com/dxf2gcode/dxf2gcode Please use GitHub Issues for bug reports and feature requests. SourceForge remains available for previous releases and historical tickets. For user support and discussions, please visit our community forum: https://www.ltspiceusers.ch/forums/english-section.67/ 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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Dune 3D
3D CAD application
Dune 3D is a free, open-source parametric CAD application designed for creating precise three-dimensional models. It combines a constraint-based modeling workflow with the Open CASCADE geometry engine. Users can construct sketches and define geometric relationships using constraints. Unlike conventional sketching tools, it supports constraints in three-dimensional modeling operations. The software provides solid modeling capabilities, including extrusion, intersections, fillets, and chamfers. It also supports importing and exporting STEP files for exchanging models with other CAD applications. Its interactive viewport allows users to select and manipulate geometry while navigating designs. Built with GTK4, Dune 3D is particularly useful for designing mechanical parts and 3D-printed enclosures. -
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KiCad EDA
A Cross Platform and Open Source Electronics Design Automation Suite
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Open Source Text to CAD Harness
An open source harness for generating CAD models
Open Source Text to CAD Harness is an open-source framework that enables the generation of parametric 3D CAD models using natural language prompts interpreted by AI coding agents. It acts as a harness that converts text descriptions into source-controlled CAD scripts, which are then compiled into geometric models using tools like OpenCascade and build123d. The system emphasizes reproducibility by storing CAD logic as editable code rather than opaque binary files, allowing iterative refinement through agent-driven workflows. It includes a local visualization interface called CAD Explorer for inspecting generated geometry and supports multiple export formats for engineering and manufacturing use. The project also integrates modular “skills” for robotics, motion planning, and manufacturing validation, making it highly extensible. Designed to run locally without backend dependencies, it provides a flexible environment for experimentation and production workflows. -
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OdooPLM
A Full PLM system based on odoo
OdooPLM - full open source PLM built on Odoo. 3D models, 2D drawings, BOMs, revisions and documents, versioned. LGPL-3, since 2010 by OmniaSolutions, Official Odoo Partner. YOU DO NOT NEED ODOO AS YOUR ERP. Run it as a standalone PLM beside your existing ERP - Odoo is the platform, not the commitment. Already on Odoo? PLM and ERP share one database. THIS PAGE = WINDOWS CAD CONNECTOR. One build works with every Odoo version (v11+). Download: /files/Client/Stable/ CAD: SolidWorks, Solid Edge, Inventor, ThinkDesign, AutoCAD, DraftSight, FreeCAD, ZwCAD. SERVER MODULES ARE NOT HERE. Install them FIRST: apps.odoo.com/apps/modules/browse?search=omniasolutions github.com/OmniaGit/odooplm DOCKER QUICK START git clone -b 19.0 https://github.com/OmniaGit/odooplm.git addons/odooplm FROM odoo:19.0 + pip3 install -r aaa_requirements.txt Mount ./addons -> /mnt/extra-addons, then: odoo -d DB -i plm,plm_web_3d,plm_automated_convertion Docs: odooplm.omniasolutions.website | info -
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An STL format importer/exporter plugin script for Google SketchUp. Supports both binary and ASCII import and export.
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Open Source CAM - Toolpath Generation for 3-Axis CNC machining
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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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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.
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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
