Open Source C Libraries
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C Libraries
View 74 business solutionsBrowse 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.
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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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Yeastar: Business Phone System and Unified CommunicationsUser-friendly, optimized, and scalable, the Yeastar P-Series Phone System redefines business connectivity by bringing together calling, meetings, omnichannel messaging, and integrations in one simple platform—removing the limitations of distance, platforms, and systems.
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Curl
Command line tool and library for transferring data with URLs
Curl is a command line tool and library for transferring data specified with URL syntax. It supports HTTP, HTTPS, FTP, FTPS, GOPHER, TFTP, SCP, SFTP, SMB, TELNET, DICT, SSL certificates, cookies, user+password authentication, and so much more! Curl is used for many different things. It's used in command lines or scripts for transferring data. It's also used in just about every device you can think of: mobile phones and tablets, television sets, printers, routers, media players and other audio equipment. Curl is also the internet transfer backbone for thousands of software applications being used extensively throughout the world today. Curl is feature-rich, thread-safe, well supported and fast. It is also highly portable and works on numerous platforms, including Solaris, NetBSD, FreeBSD, OpenBSD, Linux, Mac OS X, Windows, Darwin, UnixWare, HURD, BeOS, Ultrix, QNX, DOS, Symbian, and many more. -
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Fast Artificial Neural Network Library is a free open source neural network library, which implements multilayer artificial neural networks in C with support for both fully connected and sparsely connected networks. Cross-platform execution in both fixed and floating point are supported. It includes a framework for easy handling of training data sets. It is easy to use, versatile, well documented, and fast. Bindings to more than 15 programming languages are available. An easy to read introduction article and a reference manual accompanies the library with examples and recommendations on how to use the library. Several graphical user interfaces are also available for the library.
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libhv
Network library for developing TCP/UDP/SSL/HTTP/WebSocket/MQTT client
Like libevent, libev, and libuv, libhv provides event loop with non-blocking IO and timer, but simpler api and richer protocols. Cross-platform (Linux, Windows, MacOS, BSD, Solaris, Android, iOS) High-performance EventLoop (IO, timer, idle, custom) TCP/UDP client/server/proxy. TCP supports heartbeat, reconnect, upstream, MultiThread-safe write and close, etc. Built-in common unpacking modes (FixedLength, Delimiter, LengthField) RUDP support: WITH_KCP. SSL/TLS support: (via WITH_OPENSSL or WITH_GNUTLS or WITH_MBEDTLS) HTTP client/server (support https http1/x http2 grpc). HTTP supports static service, indexof service, proxy service, sync/async API handler. HTTP supports RESTful, router, middleware, keep-alive, chunked, SSE, etc. WebSocket client/server. -
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FSP - File Service Protocol Suite
UDP File transfer protocol
FSP - File Service Protocol. FSP is lightweight UDP based protocol for transferring files. It is designed for anonymous transfers over unreliable networks. -
Airlock Digital - Application Control (Allowlisting) Made SimpleFor organizations seeking the most effective way to prevent malware and ransomware in their environments. It has been designed to provide scalable, efficient endpoint security for organizations with even the most diverse architectures and rigorous compliance requirements. Built by practitioners for the world’s largest and most secure organizations, Airlock Digital delivers precision Application Control & Allowlisting for the modern enterprise.
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libquickmail
C library for sending e-mail (with attachments) from C/C++
C library intended to give C/C++ developers a quick and easy way to send e-mail from their applications. Supports multiple To/Cc/Bcc recipients and multiple attachments without size limitation. For the actual SMTP communication either libcurl can be used or the built in SMTP support. The library can also be used to just create a multipart MIME message body. Also comes with a command line application (quickmail) for sending mails (mutiple attachments supported) from command line or scripts. Cross-platform. Binary packages available for Windows (32-bit and 64-bit). -
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proxysocket
Portable C library for proxy client support using standard SOCKETs.
Cross-platform C library to establish TCP connections using a proxy. Supports different connection methods: - no proxy (optionally allowing to bind to a local address and/or port) - HTTP proxy: only CONNECT method, only without authentication or basic authentication - SOCKS4: without IDENT functionality - SOCKS5 (RFC 1928): only without authentication or username/password Features: - Currently only support IPv4 TCP connections. - Returns a standard operating system SOCKET that can be manipulated by standard operating system functions like send() and recv(). - Supports daisy-chaining multiple proxies. - Can also be used for direct connections (without proxy) optionally binding to a local address and/or port. -
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libtld
Extract the TLD of any, world wide, URI.
The libtld is used to extract the TLD from any URI from anywhere in the world. The library recognizes all TLDs, whatever the number of levels the TLD includes (i.e. .com has one, .au has up to 4 such as .schools.nsw.edu.au) this library will be capable of extracting it. The library is for C, C++, and PHP. -
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AP's Toolkit
TCP/UDP Connections Pool manager with additional utility functions
Main repo is https://github.com/kadavris/ap-multiconn-toolkit Connections pool / Connections array / Connections list / Connections set library. The library incorporates control mechanisms for managing multiple simultaneous TCP and UDP connections at the client or server side. Some additional utility functions available. The code is written in plain C to maximize compatibility and consists mainly of epoll-driven connections pool module. The intended usage is to periodically call state checking function(s) on pool(s) that will emit call-back events for immediate user awareness of activity behind the connections. Much of the dirty work is done inside the library. The input on connections is performed asynchronously by default and output can be either sync or async. Because of epoll usage the library is Linux only for the moment, but effort was made to allow adopting other techniques in the future by some small changes to the code and logic. -
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Acl
A powerful server and network library, including coroutine
The Acl (Advanced C/C++ Library) project a is powerful multi-platform network communication library and service framework, supporting LINUX, WIN32, Solaris, FreeBSD, MacOS, AndroidOS, iOS. Many applications written by Acl run on these devices with Linux, Windows, iPhone and Android and serve billions of users. There are some important modules in Acl project, including network communcation, server framework, application protocols, multiple coders, etc. The common protocols such as HTTP/SMTP/ICMP//MQTT/Redis/Memcached/Beanstalk/Handler Socket are implemented in Acl, and the codec library such as XML/JSON/MIME/BASE64/UUCODE/QPCODE/RFC2047/RFC1035, etc., are also included in Acl. Acl also provides a unified abstract interface for popular databases such as Mysql, Postgresql, Sqlite. Using Acl library users can write database applications more easily, quickly and safely. -
Managed Cybersecurity Platform Built for MSPsIn a world that lives and breathes all things digital, every business is at risk. Cybersecurity has become a major problem for small and growing businesses due to limited budgets, resources, time, and training. Hackers are leveraging these vulnerabilities, and most of the existing cybersecurity solutions on the market are too cumbersome, too complicated, and far too costly.
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CLara is a framework that enables you to access the computing power of many graphics processors in an IP-based network using a kind of Client/Proxy/Server model. Its programming interface conforms to the OpenCL 1.0 standard.
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EGNLA
Heterogeneous cluster for acceleration of linear algebra computations
This project deals with a new concept of the heterogeneous grid for acceleration of the numerical linear algebra computing. We design this grid with respect to maximal ratio between cost and computational power. It allows a parallelization of scientific codes with minimal programming effort. We also optimize grid concept to be less sensitive to network parameters. -
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Paul Thomas's Performance Tuned SSH, aka PTssh. A cross-platform, high-performance, multi-threaded, thread-safe library implementing the SSH2 protocol and SFTP version 3.
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This libpurple PHP binding, which defines a set of internal classes, gives a possibility to use aol and icq (oscar), yahoo, msn, jabber, irc and much more protocols directly from PHP. Write your own IM chat client in PHP, as simply as PHP enables it.
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Reporting engine library written in C. Create one XML file and generate PDF, HTML, TXT, and CSV reports based on queries. Has support for MySQL, PostgreSQL, ODBC. Bindings for PHP, Java, Python.
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Simple Fast Dictionary
Simple, small and fast dictionary lib on C
The library does quick search of dictionary words in arbitrary input strings. Known problems are known. :) See appropriate section in documentation. Also, only ASCII words and strings for now. -
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libfabric
AWS Libfabric
The Open Fabrics Interfaces (OFI) is a framework focused on exporting fabric communication services to applications. Libfabric pre-built binaries may be available from other sources, such as Linux distributions. Elastic Fabric Adapter (EFA) is a network interface for Amazon EC2 instances that enables customers to run applications requiring high levels of inter-node communications at scale on AWS. Its custom-built operating system (OS) bypass hardware interface enhances the performance of inter-instance communications, which is critical to scaling these applications. With EFA, High Performance Computing (HPC) applications using the Message Passing Interface (MPI) and Machine Learning (ML) applications using NVIDIA Collective Communications Library (NCCL) can scale to thousands of CPUs or GPUs. As a result, you get the application performance of on-premises HPC clusters with the on-demand elasticity and flexibility of the AWS cloud. -
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libpwmd
API for Password Manager Daemon (pwmd)
Libpwmd provides an API for connecting to pwmd. It allows for your application to easily store and retrieve data from a pwmd server. It does all the work of setting up the socket and socket IO. Fetching element content can be done in as little as 4 function calls: pwmd_new(), pwmd_connect(), pwmd_open() and pwmd_command(). -
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A rpc library implementing the Remote Procedure Call Specification (RFC 1057) and a nfs3 library implementing the Network File System v3 Specification (RFC 1813) for devkitppc and libogc (Nintendo Wii), are the aim of this project.
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libwebappremote is a C library that would allow application to provide a web-based service to provide monitoring and sending commands to the application via HTTP
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libwlocate is a shared library that can be used for location-based services. It checks for WLAN-networks that are available near to a user and retrieves the current geographic position out of them. Thus no GPS is needed for positioning. This WLAN-based geolocation happens without using any of the commercial services that do the same but track the users position and data. libwlocate instead bases on the free OpenWLANMap project.
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======================================================================================= OUR PROJECT HOME HAS BEEN MOVED TO https://github.com/wolkykim/qdecoder PLEASE CHECK OUT OUR NEW HOME FOR THE LATEST UPDATES. ======================================================================================= The goal of qDecoder project is providing complete but simple and versatile CGI library for C/C++ language. It supports GET/POST query parsing including File Uploading, Cookie handling and Session management. FastCGI is also supported.
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spdylay
The experimental SPDY protocol version 2 and 3 implementation in C
This is an experimental implementation of Google's SPDY protocol version 2 and 3 in C. -
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tkhtml is an effort to create modern web browser components based on the Tcl/Tk platform. Hv3 is a minimalist web browser using tkhtml.
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