Open Source CAD Software
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CAD Software
View 264 business solutionsBrowse free open source CAD software and projects 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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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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Open Source CAM - Toolpath Generation for 3-Axis CNC machining
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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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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+ -
MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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KiCad EDA
A Cross Platform and Open Source Electronics Design Automation Suite
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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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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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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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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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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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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. -
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EarthWorks
The road cutting and filling quantity analyser and report producer app
Earthworks is a civil engineering related cutting and filling quantity calculator. It also generates reports in various formats of CSV and PDF. It takes the basic paraments to form the longitudinal section of the road along with the proportions ratio of cuttings and fillings. ================================= V 1.2: 1. Now creates the longitudinal section in CAD softwares. 2. Bug Fixes. ================================== V 1.1: 1. Application freezing, not opening bug fixed. 2. Application closing error fixed. ================================== ======================================= SYSTEM REQUIREMENTS ======================================= Windows: 7/ 8 / 8.1 / 10 (Please note, the ARM version of Windows is not supported for now.) Processor: Intel Pentium 4 or later that's SSE2 capable Ram: 512MB (Min) Architecture: Both x86 and amd64 (x64) binaries are provided for Windows. -
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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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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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Create 3D models easily in Win95,NT,XP,Vista,Win7 on all desktops, laptops and even netbooks without any 3D hardware acceleration. Supports 3DS, DXF, WRL, POV, ASC, spreadsheet & compressed files, extrude/sweep, mesh edit, parametric NURBS curves ...
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The BladeDesigner package is a CAD/CAE tool providing classes for turbomachine blade design. So far it is optimized to be useful in the aerodynamic design process. It comes with a GUI but is most powerful with user defined python scripts.
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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. -
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RHT-LA Profil
RHT-LA : Applicatif Tracé Ligne Aérienne HT
Ce programme est une aide au dessin pour produire les profils Ligne aérienne Haute Tension à partir des éléments techniques de PLSCADD. Ce programme génère les profils sous AutoCAD pour répondre à la charte graphique spécifique du gestionnaire de réseau : RTE-France. -
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Arduino CNC Controller
APP for control a manual mill and obtain a CNC Mill
APP for Android 3.1 or greater to implement a CNC Controller that send orders using USB port to Arduino Mega 2560 R3 board to control 3 stepper motor to have a real CNC mill /// APP para Android 3.1 o superior para implementar un Controlador de CNC que envia ordenes usando el puerto USB a la placa Arduino Mega 2560 R3 para controlar 3 motores paso a paso para tener una fresadora de CNC real. -
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pyGear
Precise gear geometry generator for spur and helical gears
A python gear generator that serves as CAE/CAD-preprocessor for involute gears based on pythonOCC. It allows for the computation of dynamic properties and the creation of exact geometries from a minimal input set. PyGear can simulate the tool geometry and kinematics of standard gear hobbing tools to generate precise flank, tooth root and tip geometries. -
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CompassCAD
very good CAD software
CompassCAD is a simple, light, yet minimalist 2D-only CAD software. It lowers the barriers for novice CAD users to learn about CAD and sketch their very own design from scratch, and ensures everyone can try CAD. If applicable, it could also be used as a professional software with features such as collaboration (up to 2 persons, more will be added later on), SVG exporting, ready to be printed and shared with your co-workers. CompassCAD has a very small project size bundled in a single file, so your file is ready for distribution without breaking any of your favorite messaging app's file limit. -
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Mach3 Threading Helper
Helps with the Mach3 CNC Threading functionality
This Application assists the usage for CNC threading, especially the Mach3 software. The threading cycle uses the G76 command with some parameters. This program lets the user select from hundreds of predefined or free definable thread standards and calculates the parameters for the Mach3 command line. So, essentially just select your thread, calculate it, copy & paste the result to a GCode file, hit "Cycle start" and you get exactly what you want. Also included is a little tool to calculate the pitch diameter of a thread based on a measurement with three wires. Supports the threading standards M, G, R, BSW, BSF, UNC, UNF, UNEF and tapered Pipe R/Rc and Metrical threads. New: NPSM, NPT, NPTF, NPSC, NPSF. Includes an improved version of the Mach3 M1076.m1s threading macro and a matching screenset. Try also the Feed Calculator: www.sourceforge.net/p/feedcalculator -
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dxf2gbr
free simple dxf to gerber file converter
freeware converter autocad (.dxf) file to gerber (.gbr). Currently dxf 2010 is partly supported. Feel free to contribute patches/extensions. -
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Andrafting
CAD application for Technical Drawing exercises in Android
Andrafting is an open source Android application to create Technical Drawing exercises. This application is inspired by the 'Classical Construction', also known as 'Ruler-and-compass Construction' or 'Compass-and-straightedge construction'. However, another drawing tools can be used. (More info about classical construction: https://en.wikipedia.org/w/index.php?title=Compass-and-straightedge_construction). TABLET & MOUSE recommended Desktop version (not compatible) https://sourceforge.net/projects/jdrafting/ -
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Easy to use 3D truss analyzer using finite element methods.
