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

  • AI-generated apps that pass security review Icon
    AI-generated apps that pass security review

    Stop waiting on engineering. Build production-ready internal tools with AI—on your company data, in your cloud.

    Retool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
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    Run Any Workload on Compute Engine VMs

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    Compute Engine delivers high-performance virtual machines for web apps, databases, containers, and AI workloads. Choose from general-purpose, compute-optimized, or GPU/TPU-accelerated machine types—or build custom VMs to match your exact specs. With live migration and automatic failover, your workloads stay online. New customers get $300 in free credits.
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  • 1
    crystal-facet-uml

    crystal-facet-uml

    Create consistent Uml diagrams

    As software architect, you create a set of diagrams describing use-cases, requirements, structural views, behavioral and deployment views. crystal_facet_uml keeps element names and element hierarchies consistent. It exports diagrams in svg, pdf, ps and png formats to be used in text processing systems like docbook, html, latex. This tool runs on your local PC and is based on glib, gdk, gtk, cairo, pango, sqlite.
    Downloads: 3 This Week
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  • 2
    Temporal Inference Engine

    Temporal Inference Engine

    A real time inference engine for temporal logical specifications

    A real time inference engine for temporal logical specifications, which is able to acquire, process and generate any binary or real signal through POSIX IPC, files or UNIX sockets. Specifications of signals and dynamic systems are represented as special graphs and executed in real time, with a predictable sampling time of few milliseconds. Real time signal processing, dynamic system control, state machine modeling and logical property verification are some fields of application of this software. The accepted language provides timed logic and mathematical operators, conditional operators, interval operators, bounded quantifiers and parametrization of signals.
    Downloads: 2 This Week
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  • 3
    ConceptBase.cc

    ConceptBase.cc

    A Database System for Metamodeling and Method Engineering

    ConceptBase.cc is a multi-user deductive and object-oriented database system for metamodeling and method engineering. Includes a graphical client that builds upon the logic-based features of the ConceptBase.cc server. The data model is O-Telos. ConceptBase.cc can represent information at the data level (example data, traces of process executions etc.), the class level (schemas, process definitions etc.), the metaclass level (constructs of modeling languages), the meta-metaclass level (constructs for defining modeling languages), and so forth. ConceptBase.cc is developed by the ConceptBase Team at University of Skövde (HIS). ConceptBase.cc supports Linux, Mac OS X and Windows. ConceptBase.cc is free software distributed under a FreeBSD-style license.
    Downloads: 3 This Week
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  • 4
    GANDI is a Gathering of Additional Ncurses Development Implements
    Downloads: 2 This Week
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  • Deploy Apps in Seconds with Cloud Run Icon
    Deploy Apps in Seconds with Cloud Run

    Host and run your applications without the need to manage infrastructure. Scales up from and down to zero automatically.

    Cloud Run is the fastest way to deploy containerized apps. Push your code in Go, Python, Node.js, Java, or any language and Cloud Run builds and deploys it automatically. Get fast autoscaling, pay only when your code runs, and skip the infrastructure headaches. Two million requests free per month. And new customers get $300 in free credit.
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  • 5
    Mac OS X and Windows OpenGL 3D Engine tools, content and code to create games and applications. Newton physics, OpenAL sound with OGG Vorbis, Lua, Revolution, written in C.
    Downloads: 2 This Week
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  • 6

    Automalator

    State Dependency deconstructor and mapper for C source code.

    Flowcharts not telling you what you want to know about some C source code? Try a State Dependency map! Every C source file is an implemention of a state machine. Implicit in the definition of a state machine is a network of dependencies between the states. The Automalator * deconstructs the C code into the core state machine * collates the transactions into the dependency net * generates a diagram-format file with the states and dependencies as the nodes and edges. Pre-requisites * Perl - tested with versions 5.12.3, 5.14.2 and 5.20.2, Windows, Linux and MAC * Get the Automalator by downloading the zip, or checking out or exporting the SVN trunk * copy the source code of interest into "project.c" * windows - double-click "src2map.bat" * linux & MAC - navigate the command line to the "project" folder, then run "src2map.sh" * open "project.gml" file with diagramming software.
    Downloads: 1 This Week
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  • 7
    AppLaunch
    AppLaunch is a MacOS X tool written in Objective-C/Cocoa to launch common Unix and MacOS commands using a "graphical command line". You can say that it is the MacOS X version of Windows', KDEs, ... "Run"/"Launch" dialog.
    Downloads: 0 This Week
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  • 8
    This is meant to be a powerful, but easy to use math software. It's by the user and for the users.
    Downloads: 0 This Week
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  • 9
    Elementals. Elementals are small creatures that have dedicated purpose.
    Downloads: 0 This Week
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  • 99.99% Uptime for MySQL and PostgreSQL on Google Cloud Icon
    99.99% Uptime for MySQL and PostgreSQL on Google Cloud

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  • 10
    Enough lame computing! The project for re-desiging and re-writing the computer world, based on old & new ideas that have never been implemented in a practical way. Research in form of discussion is in the public forum at this sourceforge project page.
    Downloads: 0 This Week
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  • 11
    Extended C gives Object-Oriented features such as self-referential structure pointers via macros to C, resulting in an object-oriented style. Currently tested in gcc, we hope to stabilize it for other compilers as well, including Borland & Visual Studio.
    Downloads: 0 This Week
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  • 12
    Featureless Linux Library

    Featureless Linux Library

    Linux Library on top of Libc focusing on long term support.

    When computer power increases, programmers generally add more "features", thus making any performance gains in new hardware negligible. This project is an attempt to develop a library above libc that breaks out of this terrible loop.
    Downloads: 0 This Week
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  • 13
    Flair is all about simplifying application development. It allows the developer to write modules of code and then use flair to define how they interact. Flair then generates the extra code to finalise the application
    Downloads: 0 This Week
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  • 14
    Digital Signal Processing Block Diagram Compiler - user extendable to all DSP's, but presently supports only the TI C2000 family. Rich support for fixed point arithmetic, both saturated and unsaturated. Block diagram entry is via TinyCAD (included).
    Downloads: 0 This Week
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  • 15
    Infopath xsn form designer. Used to modify the html layout of the xsn form. Something like the Design mode of Infopath, but free.
    Downloads: 0 This Week
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  • 16
    project aimed towards design and subsequent implementation of compilers for new programming language
    Downloads: 0 This Week
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  • 17

    LED sign conversion

    LED matrix rebirth

    Discarded the original controller due to lack of programming information and replaced it with three optional controllers: mbed, arduino and 8051 (DS5000)
    Downloads: 0 This Week
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  • 18
    Monotooth is a library for Mono developers to use bluetooth in their projects with ease. Initial alpha release will include support for bluez. Windows support will be included in the future.
    Downloads: 0 This Week
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  • 19
    Downloads: 0 This Week
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  • 20
    ObjectBuilder2

    ObjectBuilder2

    C++ CASE tool, full life cycle code generator

    ObjectBuilder is a C++ code generation CASE tool (CASE, code generation, refactoring, documentation generation). It lets you create, manipulate and navigate classes, class relations, class members and class methods at a high level of abstraction. ObjectBuilder dramatically simplify work with C++ project architecture. I use it and think that tree OO interface targeted to C++ more fast and power than UML class diagrams. ObjectBuilder perfectly organize C++ header files with any level of complexity. Even if you use loop-references if OO hierarchy, you need include only one project-level header file. You can easy modify and refactore existing project with cut/copy/paste ANY object (from Method Argument to entire Project) within project and between ObjectBuilder projects. ObjectBuilder is not an IDE tool. It is portable two-way architect code-generation tool.
    Downloads: 0 This Week
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  • 21
    This Program is to search for a certain color . you mix the 3 colors together and see the result , and see the color's RGB .
    Downloads: 0 This Week
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  • 22
    OnyX is a C++ Integrated Development Environment for Linux that resembles the old Visual basic 3.0
    Downloads: 0 This Week
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  • 23
    OpComm - The Operational Communicator - a IM/collaboration software which should help developers do realtime design and development collaboration even being in distant places of the world, or game players to communicate efficiently during a network game.
    Downloads: 0 This Week
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  • 24
    Open Object Oriented ANSI C provide API to build Object Oriented application in ANSI C language. It provide common base classes that allow inheritance to develop application with your own reusable objects, and smart exception recovery support
    Downloads: 0 This Week
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  • 25
    OpenVI - Open Visual Integrator, a visual software programming framework for digital signal processing, DAQ and more ...
    Downloads: 0 This Week
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