FreeCAD - An Open Source parametric 3D CAD modeler

•    C++

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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. 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.

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BRL-CAD - Solid Modeling System

•    Java

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BRL-CAD is a powerful cross-platform constructive solid geometry solid modeling system that includes an interactive geometry editor, ray-tracing for rendering amp; geometric analyses, network distributed framebuffer support, image & signal-processing tools.

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ImplicitCAD - A math-inspired CAD program in haskell. CSG, bevels, and shells; 2D & 3D; gcode generation

•    Haskell

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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. 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.

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QCAD - Crossplatform CAD Solution

•    C++

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QCAD is an application for computer aided drafting in two dimensions (2d). With QCAD you can create technical drawings such as plans for buildings, interiors, mechanical parts or schematics and diagrams.

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Librecad - Open Source 2D-CAD

•    C++

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LibreCAD is a comprehensive, 2D CAD application based on the community edition of QCad. It is available in more than 20 languages. LibreCAD has been re-structured and ported to qt4 and works natively cross platform between OSX, Windows and Linux.

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Oregano2 Electrical Engineering Tool

•    C

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This is a GNOME2 port of Oregano. Oregano is an application for schematic capture and simulation of electrical circuits. And it will use Spice OPUS to perform the simulation.

OpenJSCAD - Set of modular, browser and command line tools for creating parametric 2D & 3D designs with Javascript

•    Javascript

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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 (scad-api built-in), as well CLI (command-line interface) for server-side computations with NodeJS.

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Athena: Modular CAD / CAM Software for Synthetic Biology

•    DotNet

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Synthetic biology is the engineering of cellular networks. It combines principles of engineering and the knowledge of biological networks to program the behavior of cells. Computational modeling techniques in conjunction with molecular biology techniques have been successful i...

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l5kit - L5Kit - level5.lyft.com

•    Python

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This repository and the associated datasets constitute a framework for developing learning-based solutions to prediction, planning and simulation problems in self-driving. State-of-the-art solutions to these problems still require significant amounts of hand-engineering and unlike, for example, perception systems, have not benefited much from deep learning and the vast amount of driving data available. The purpose of this framework is to enable engineers and researchers to experiment with data-driven approaches to planning and simulation problems using real world driving data and contribute to state-of-the-art solutions.

lyft

thermo - Thermodynamics and Phase Equilibrium component of Chemical Engineering Design Library (ChEDL)

•    Python

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Thermo is open-source software for engineers, scientists, technicians and anyone trying to understand the universe in more detail. It facilitates the retrieval of constants of chemicals, the calculation of temperature and pressure dependent chemical properties (both thermodynamic and transport), and the calculation of the same for chemical mixtures (including phase equilibria) using various models. Thermo runs on all operating systems which support Python, is quick to install, and is free of charge. Thermo is designed to be easy to use while still providing powerful functionality. If you need to know something about a chemical or mixture, give Thermo a try.

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CAELinux

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CAELinux is a live DVD Linux distribution dedicated to Computer Aided Engineering and Scientific Computing. Based on Ubuntu, it features a full software solution for professional 3D FE analysis from CAD geometry. It includes the Salome 3D pre/post processor, Code_Aster non-linear/multi- physics FE solver, Code-Saturne and OpenFOAM CFD solvers, Elmer multiphysics suite, GMSH, Netgen & enGrid 3D meshers, GNU Octave, Rkward, wxMaxima, Scilab, and more.

precice - A coupling library for partitioned multi-physics simulations, including, but not restricted to fluid-structure interaction and conjugate heat transfer simulations

•    C++

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preCICE stands for Precise Code Interaction Coupling Environment. Its main component is a library that can be used by simulation programs to be coupled together in a partitioned way, enabling multi-physics simulations, such as fluid-structure interaction. If you are new to preCICE, please have a look at our documentation and at precice.org. You may also prefer to get and install a binary package for the latest release (master branch).

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simbody - High-performance C++ multibody dynamics/physics library for simulating articulated biomechanical and mechanical systems like vehicles, robots, and the human skeleton

•    C++

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Simbody is a high-performance, open-source toolkit for science- and engineering-quality simulation of articulated mechanisms, including biomechanical structures such as human and animal skeletons, mechanical systems like robots, vehicles, and machines, and anything else that can be described as a set of rigid bodies interconnected by joints, influenced by forces and motions, and restricted by constraints. Simbody includes a multibody dynamics library for modeling motion in generalized/internal coordinates in O(n) time. This is sometimes called a Featherstone-style physics engine. Read more about Simbody at the Simbody homepage.

multibody-dynamics physics-engine physics-simulation robotics biomechanics

Engineering tools on OSX

•    C

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A collection of useful software packages to perform engineering tasks, especially electrical engineering and chip design. All packages come as shrink-wrapped installers for Apple's Mac OS X.

NS 3 - Network Simulator

•    C

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Ns is a discrete event simulator targeted at networking research. Ns provides substantial support for simulation of TCP, routing, and multicast protocols over wired and wireless (local and satellite) networks.

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barf-project - BARF : A multiplatform open source Binary Analysis and Reverse engineering Framework

•    Python

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The analysis of binary code is a crucial activity in many areas of the computer sciences and software engineering disciplines ranging from software security and program analysis to reverse engineering. Manual binary analysis is a difficult and time-consuming task and there are software tools that seek to automate or assist human analysts. However, most of these tools have several technical and commercial restrictions that limit access and use by a large portion of the academic and practitioner communities. BARF is an open source binary analysis framework that aims to support a wide range of binary code analysis tasks that are common in the information security discipline. It is a scriptable platform that supports instruction lifting from multiple architectures, binary translation to an intermediate representation, an extensible framework for code analysis plugins and interoperation with external tools such as debuggers, SMT solvers and instrumentation tools. The framework is designed primarily for human-assisted analysis but it can be fully automated. All packages were tested on Ubuntu 16.04 (x86_64).

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abstreet - Transportation planning and traffic simulation software for creating cities friendlier to walking, biking, and public transit

•    Rust

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Ever been stuck in traffic on a bus, wondering why is there legal street parking instead of a dedicated bus lane? A/B Street is a project to plan, simulate, and communicate visions for making cities friendlier to people walking, biking, and taking public transit. We create software to simulate traffic, edit streets and intersections, plan bike networks, create low-traffic neighborhoods, and educate the public about 15-minute neighborhoods through games. The project works anywhere in the world, thanks to OpenStreetMap. We amplify the efforts of individuals and advocacy groups who campaign to transition cities away from private motor vehicles. We believe in transparent and reproducible analysis, so all of our work is open source and based on public data. We believe everybody should have a voice in shaping their city, so our software aims to be easy to use.

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linux/gnu-cad-cam

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linux/gnu-cad-cam will be a gnu gpled integrated cad/cam package. will support hexapod machines, and conventional cnc machines. currently the project is in design stage.

NOSE

•    Perl

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NOSE is a package for simulation of linear and non-linear optical and infrared spectra, including absorption, fluorescence, circular dichroism, pump-probe, photon echo and other.

owl - Owl is an OCaml library for scientific and engineering computing.

•    OCaml

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Owl is an emerging numerical library for scientific computing and engineering. The library is developed in the OCaml language and inherits all its powerful features such as static type checking, powerful module system, and superior runtime efficiency. Owl allows you to write succinct type-safe numerical applications in functional language without sacrificing performance, significantly reduces the cost from prototype to production use. Owl's documentation contains a lot of learning materials to help you start. The full documentation consists of two parts: Tutorial Book and API Reference. Both are perfectly synchronised with the code in the repository by the automatic building system. You can access both parts with the following link.

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