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

  • Intelligent network automation for businesses and organizations Icon
    Intelligent network automation for businesses and organizations

    Network automation for the hybrid multi-cloud era

    BackBox seamlessly integrates with network monitoring and NetOps platforms and automates configuration backups, restores, and change detection. BackBox also provides before and after config diffs for change management, and automated remediation of discovered network security issues.
  • Find out just how much your login box can do for your customer | Auth0 Icon
    Find out just how much your login box can do for your customer | Auth0

    With over 53 social login options, you can fast-track the signup and login experience for users.

    From improving customer experience through seamless sign-on to making MFA as easy as a click of a button – your login box must find the right balance between user convenience, privacy and security.
  • 1
    JSON Parser

    JSON Parser

    JSON Parser written in C that outputs JSON into D-List list objects

    JSON parser is a highly efficient JSON data decoder written in C, that parses JSON data into a form that is very easy to use from within C code. You only need to include the json-parser.h file in your source code. If your project does not already incorporate D-List, you will also need to include dlist.h The JSON parser package also includes a JSON validator that does not parse or create resources, but allows the caller to validate JSON data from unknown sources, prior to any parsing attempts. The JSON data is returned to the caller as a set of hierarchical D-List list objects, that make the data very easy to manage, sort, search or use, and easy to remove when done. Package includes a JSON textural generator which will create JSON grammar data blocks from hierarchical D-List representations of JSON data. The package also includes a variety of support functions to allow C code to easily find, add, and modify JSON values and members in D-List hierarchical structures.
    Downloads: 9 This Week
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  • 2
    ooHG
    Object Oriented Harbour Graphical interface. This is an object oriented adaptation of the MiniGUI library, that supports existing code and adds new and powerful advantages from the object oriented programming. Visit us at our new site at GitHub.
    Downloads: 9 This Week
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  • 3
    flom

    flom

    Free Lock Manager

    FLoM is a free open source distributed lock manager that can be used to synchronize shell commands, scripts and custom developed software. When used in a shell environment, FLoM manages process synchronization in the same way that "nice" manages process prioritization. Shell commands, scripts and custom programs can be synchronized inside a single system or in a network of IP connected systems. FLoM supports different types of abstract resources: simple, numeric, set, hierarchical and transactional sequence. libflom, the library shipped with FLoM, allows you to develop your own application using a simple C, C++, Java, Perl, PHP or Python client API. SSL/TLS security for network communication, X.509 certificates for peer to peer mutual authentication.
    Downloads: 4 This Week
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  • 4
    A fixed point math header-library for C, under a liberal license.
    Downloads: 2 This Week
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  • Desktop and Mobile Device Management Software Icon
    Desktop and Mobile Device Management Software

    It's a modern take on desktop management that can be scaled as per organizational needs.

    Desktop Central is a unified endpoint management (UEM) solution that helps in managing servers, laptops, desktops, smartphones, and tablets from a central location.
  • 5
    Lightweight application-protocol for devices that are constrained their resources such as computing power, RF range, memory, bandwith, or network packet sizes. This protocol, CoAP, is developed in the IETF working group "CoRE", <http://6lowapp.net>.
    Downloads: 3 This Week
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  • 6

    AVR-Ada

    Ada cross compiler and libraries for AVR µCs

    The AVR-Ada project provides the gcc based Ada compiler GNAT for the AVR 8-bit microcontrollers. This includes: - the Ada compiler - the Ada run time system and the AVR support library - documentation and some sample programs. The project is now superseded by the Alire crates - [AVRAda_RTS](https://github.com/RREE/AVRAda_RTS) - [AVRAda_MCU](https://github.com/RREE/AVRAda_MCU) - [AVRAda_Lib](https://github.com/RREE/AVRAda_Lib) - [AVRAda_Examples](https://github.com/RREE/AVRAda_Examples) Start with the examples (alr get avrada_examples) and Alire will install everything else.
    Downloads: 2 This Week
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  • 7
    A full featured, object-oriented, multi-platform C# wrapper for the curses terminal control library.
    Downloads: 2 This Week
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  • 8
    Unicoder

    Unicoder

    A Portable Wide-Character Terminal Output Package for C and C++

    Unicoder is a single header file that you add to your C or C++ projects which allows you to easily display unicode characters in the Terminal display irregardless of what compiler you are using. That is, it was written so that it would be portable so you can change platforms or compilers with ease. Currently it can be used on either the Windows or Linux platforms. Also, Unicoder can insert compiler specific commands that perform useful task such as clearing the console display or turn on bold and underline or change text font and background colors. And it provides a rudimentary way to draw on the display. Currently, Unicoder supports Ubuntu-Linux GCC and on Windows it can be used with these IDEs and compilers: MS Visual Studio 2017&2019, Code::Blocks, Pelles C, Embarcadero Dev-C++, Open Watcom, MSYS, MSYS2, Cygwin and with MinGW, Clang, LCC and Digital Mars C (but Digital Mars does not support Unicode!)
    Downloads: 5 This Week
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  • 9
    c common functions library extracted from my open source projects FastDFS and FastDHT. this library is very simple and stable. functions including: string, logger, chain, hash, socket, ini file reader, base64 encode / decode, url encode / decode etc.
    Downloads: 4 This Week
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  • AI-powered conversation intelligence software Icon
    AI-powered conversation intelligence software

    Unlock call analytics that provide actionable insights with our call tracking software, empowering you to identify what's working and what's not.

    Every customer interaction is vital to your business success and revenue growth. With Jiminny’s AI-powered conversation intelligence software, we take recording, capturing, and meticulous analysis of call recordings to the next level. Unlock call analytics that provide actionable insights with our call tracking software, empowering you to identify what's working and what's not. Seamlessly support your biggest objectives across the entire business landscape with our innovative call tracking system.
  • 10
    libuio is a light-wight C programming library to handle UIO device discovery and binding task.
    Downloads: 4 This Week
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  • 11
    Coronis SDK

    Coronis SDK

    Set of module for data processing of wireless device

    The goal is to create a leading “Set of software libraries for data processing of wireless device based on Coronis platform“. These libraries will run on all major platforms (embedded and desktop) and provide services for data processing through generic APIs. Keywords: Coronis, Wavenis, API, Plugin, Wireless, Waveport, Wavecard, Profile, Java, C, C++, C#
    Downloads: 1 This Week
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  • 12
    CQRlib is an ANSI C implementation of a utility library for quaternion arithmetic and quaternion rotation math.
    Downloads: 3 This Week
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  • 13

    CyoEncode

    Base64, Base32, Base16, and Base85 encoding/decoding functions in C

    Provides C functions for encoding binary data into a printable representation using Base64, Base32, Base16 (hex), or Base85/Ascii85 character sets, plus equivalent functions for the decoding of such encoded data back into its binary form.
    Downloads: 3 This Week
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  • 14

    Extended C Library

    Extended C Library

    Why Is libxc needed? There doesn't exist a library for ANSI C99 for common data containers, such as vectors, trees, etc. There also also doesn't exist a library for common functionality, such as error reporting/logging, string functions, configuration management (reading config files), etc... The programmer working in C doesn't have anything analogous to the Boost C++ library. The extended C library is intended to make some headway into providing this functionality. To ensure unrestricted usage the libxc project is provided under the very permissive BSD license. If you need a different license then please send me a request (lelanthran at gmail) and I'll do my best to satisfy your request. What's completed? As of writing, the following libraries have been written and tested: 1. Memory accounting/tracking 2. String operations 3. Vectors 4. Trees 5. Dictionary arrays 6. Configuration management See the wiki page for more information
    Downloads: 3 This Week
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  • 15
    LibHideIP - An IP-hiding library

    LibHideIP - An IP-hiding library

    A library for hiding the local IP address from applications.

    LibHideIP is a library that on-the-fly (by preloading) prevents programs from knowing your IP address. This makes them unable to know and reveal your location, thus helping keep the user's privacy. There is NO NEED to rebuild your software, because LibHideIP is a pre-loadable library, meaning you just need to RUN the software with LibHideIP loaded. LibHideIP is also a development library. See the project homepage https://libhideip.sourceforge.io and the project Wiki in the menu above.
    Downloads: 3 This Week
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  • 16
    LibNetBlock - A Network Blocking Library

    LibNetBlock - A Network Blocking Library

    A library for blocking access to network on-the-fly

    LibNetBlock is a library that on-the-fly (by preloading) prevents a program under its control to use the network, to help to keep the user's privacy, prevent data leakage and virus spreading. You can think of LibNetBlock as a simple layer-7 (L7) firewall that simply blocks the network access for the program it controls. There is NO NEED to rebuild your software, because LibNetBlock is a pre-loadable library, meaning you just need to RUN the software with LibNetBlock loaded. LibNetBlock is also a development library. See the project homepage https://libnetblock.sourceforge.io and the project Wiki in the menu above.
    Downloads: 3 This Week
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  • 17
    LibSecRm - Secure Removal Library

    LibSecRm - Secure Removal Library

    A library for secure deleting data on-the-fly

    LibSecRm (LIBrary for SECure ReMoval) is a set of replacements for these standard C functions which cause data removing from files. The data is first securely wiped on-the-fly, to protect the user's privacy, then the original functions are called. There is NO NEED to rebuild your software, because LibSecRm is a pre-loadable library, meaning you just need to RUN the software with LibSecRm loaded. LibSecRm is also a development library. The following wiping methods are supported: Gutmann-like, random, Schneier, DoD. See the project homepage https://libsecrm.sourceforge.io and the project Wiki in the menu above. To wipe data that was left on the drive by using "normal" delete operations, you can take a look at WipeFreeSpace (https://wipefreespace.sourceforge.io), which wipes the space used by files marked as deleted (and other things, too).
    Downloads: 3 This Week
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  • 18
    OpenGI is a platform-independent C-library for parameterizing triangular meshes and creating Geometry Images from this parameterization.
    Downloads: 3 This Week
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  • 19

    ULS

    A lexical analyzer generator that makes the class source code.

    ULS is a class library for creating lexical analyzer from language specification file. It's provided as C/C++/C# and Java (class) libraries with a few of tools on Linux/Windows platform.
    Downloads: 3 This Week
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  • 20
    libgwyfile

    libgwyfile

    Read and write Gwyddion GWY files

    Libgwyfile is a small, embeddable library for reading and writing of Gwyddion GWY files as foreign data. This means independently of Gwyddon and without adopting its data object model.
    Downloads: 3 This Week
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  • 21
    project_bwt
    This is a research project to possible improve compression using LZ77, LZSS or bwt, bwt is used on the bzip2 compression library, the v28 from 04/dec/2022 is the first version to almost beat lzma, indeed it is a tweak of lzma, the decoder for v28 will follow in a few days
    Downloads: 3 This Week
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  • 22

    AS511 driver for S5 PLC

    AS511 communication driver

    This AS511 driver use functions from the Siemens S5 PLC to modify, observe and watch the PLC software. The functions are running on some CPUs. The functions are only tested on PLC 100U CPU 103. Be careful to use the Software. This software can destroy machines and kill human if you are non careful. Please let me know, if you find a bug.
    Downloads: 2 This Week
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  • 23

    AlgorithmsDev Library by Arshad Latti

    comman and new algorithms and functions development and demo programs.

    Provide implemented algorithms and functions with demo programs to test.keeped portable as possible at OS level and programming language(understanding)level.provide third party archives if available for ralvent algorithm.links for YouTube videos on availability by us and third party.
    Downloads: 2 This Week
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  • 24
    IpWay/HOST free Tcp/Ip Stack Library

    IpWay/HOST free Tcp/Ip Stack Library

    Real Time Tcp/Ip Stack Library

    IpWay/HOST is a real time tcp/ip stack library designed for embedded applications on 32bit microcontrollers ARM and PPC based (STM32Fx, SPC56x, SPC57x, SPC58x), where execution efficiency and compact code are important requirements. IpWay/HOST is characterized by high portability, compact size, copyless feature (also for TCP applications) and Checksum offload. Moreover, IpWay offers a 100% compatibility with AUTOSAR MCAL versions 4.13 and 4.2.x. IpWayStudio is a free ARM development environment based on Open Source tools and components. It has been created in order to support the development of IpWay itself and is now available as a free download. Everything is required to start working with IpWay is encapsulated in a single download. It takes just two minutes to have your development board working with IpWay.
    Downloads: 2 This Week
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  • 25
    Win32 dll frontend to ffmpeg and or tutorial on how to use ffmpeg
    Downloads: 2 This Week
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