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.

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  • 1
    linuxdeployqt

    linuxdeployqt

    Makes Linux applications self-contained by copying in the libraries

    Makes Linux applications self-contained by copying in the libraries and plugins that the application uses, and optionally generates an AppImage. Can be used for Qt and other applications. This Linux Deployment Tool, linuxdeployqt, takes an application as input and makes it self-contained by copying in the resources that the application uses (like libraries, graphics, and plugins) into a bundle. The resulting bundle can be distributed as an AppDir or as an AppImage to users, or can be put into cross-distribution packages. It can be used as part of the build process to deploy applications written in C, C++, and other compiled languages with systems like CMake, qmake, and make. When used on Qt-based applications, it can bundle a specific minimal subset of Qt required to run the application. This tool is conceptually based on the Mac Deployment Tool, macdeployqt in the tools applications of the Qt Toolkit, but has been changed to a slightly different logic.
    Downloads: 18 This Week
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  • 2
    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.
    Downloads: 45 This Week
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  • 3
    TinyGSM

    TinyGSM

    A small Arduino library for GSM modules, that just works

    A small Arduino library for GSM modules that just works. This library is easy to integrate with lots of sketches that use Ethernet or WiFi. PubSubClient (MQTT), Blynk, HTTP Client, and File Download examples are provided. Arduino GSM library uses 15868 bytes (49%) of Flash and 1113 bytes (54%) of RAM in a similar scenario. TinyGSM also pulls data gently from the modem (whenever possible), so it can operate on very little RAM. Now, you have more space for your experiments. TCP (HTTP, MQTT, Blynk, ...) All modules support TCP connections. Most modules support multiple simultaneous connections. TCP and SSL connections can usually be mixed up to the total number of possible connections. Many GSM modems, WiFi, and radio modules can be controlled by sending AT commands over Serial. TinyGSM knows which commands to send, and how to handle AT responses, and wraps that into the standard Arduino Client interface.
    Downloads: 3 This Week
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  • 4
    POCO C++ Libraries

    POCO C++ Libraries

    Cross-platform C++ libraries with a network/internet focus.

    NOTE: Current source code as well as bugs/patches are on GitHub: https://github.com/pocoproject/poco/ C++ class libraries for network-centric, portable applications, integrated perfectly with the C++ Standard Library. Includes network protocols (Sockets, HTTP, FTP, SMTP, POP3, etc.), SQL database access and XML parsing. Licensed under Boost license.
    Downloads: 6 This Week
    Last Update:
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  • 5
    Brynet

    Brynet

    A Header-Only cross-platform C++ TCP network library

    Header Only Cross-platform high-performance TCP network library using C++ 11. The server uses two network threads and one logic thread, the client uses one network (also process logic) thread. Every packet size is 46 bytes. Every packet contains the client's id. Server broadcast packets to all clients when recv one packet from any client. The client sends one packet when recv packet from the server and the packet's id is equal self.
    Downloads: 1 This Week
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  • 6
    CppServer

    CppServer

    Fast and low latency asynchronous socket server & client C++ library

    Ultra-fast and low latency asynchronous socket server & client C++ library with support TCP, SSL, UDP, HTTP, HTTPS, WebSocket protocols, and 10K connections problem solution. Cross platform (Linux, MacOS, Windows) Asynchronous communication. Supported CPU scalability designs: IO service per thread, thread pool. Supported transport protocols: TCP, SSL, UDP, UDP multicast. Supported Web protocols: HTTP, HTTPS, WebSocket, WebSocket secure. Supported Swagger OpenAPI iterative documentation. Supported message protocol based on Fast Binary Encoding.
    Downloads: 1 This Week
    Last Update:
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  • 7
    NetRider

    NetRider

    Internet Browser - WebKit based with FLTK GUI

    includes the WKCCC shared library for embedding WebKit.
    Downloads: 2 This Week
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  • 8
    Embedded HTTP Server (EHS) is a C++ class library which can be inherited from to add HTTP(S) server functionality to any class or application. It is easily extendable (samples included) and supports SSL, form data via POST or GET, uploads via multi-part form attachments and WebSockets. Operation modes include single- and multi-threaded operation.
    Downloads: 1 This Week
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  • 9

    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.
    Downloads: 1 This Week
    Last Update:
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  • Build Securely on Azure with Proven Frameworks Icon
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  • 10

    CSS Preprocessor

    CSS validation and advanced preprocessor with nesting and variables

    CSS Preprocessor is a parser, compiler, and assembler which extends the CSS language to allow nested rules and attributes, variables / @mixin, functions, and especially, strong validation of your source code so you know that it will work the first time you use it in your browser. The library is written in C++ allowing any other C++ project to work with CSS without having to rewrite their own parser. The library supports 4 output levels from ultra compressed CSS code to beautified CSS code. The preprocessor features are based on other existing CSS processors such as SASS and {less}, although the syntax is mainly based on the SASS syntax (i.e. variables use the $ character as their introducer). See the Wiki and csspp documentation for additional information.
    Downloads: 0 This Week
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  • 11
    CppWeb - C++ Web developement framework

    CppWeb - C++ Web developement framework

    Cross-platform C++ library for developing CGI Web applications

    CppWeb is cross-platform C++ library for developing web applications with server push support. The library decodes CGI variables and cookies, supports file uploads, performs automatic cookie detection, provides URL and HTML entity encode/decode functions, supports server-push (long-polling via ajax), has built-in HTML parser, SQLite database wrapper etc. CppWeb compiles on Windows, Linux and MacOSX (tested with GNU C++, MingW, MS Visual C++ and Borland C++ compiler) and can run with almost any web server (Apache, IIS, Boa etc.). Can be used in embedded systems (tested with FriendlyARM Mini2440 and Raspberry PI)
    Downloads: 0 This Week
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  • 12

    DotNetFtpLibrary

    Ftp client library .Net C#, download, upload, resume, events

    Ftp client library (framework) for .Net written in C#, download upload, resume, create directory recursive, events
    Downloads: 0 This Week
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  • 13

    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.
    Downloads: 0 This Week
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  • 14

    IO_LIB

    A library designed to abstract the C++ default libraries functions

    A library designed to abstract the C++ default libraries functions. Features: Flag arguments(indev). Function wrappers to handle simpler usage with ease. Documentation can be found at the home page or this link. http://mugfoundation.github.io/io_api/Docs/html/index.html
    Downloads: 0 This Week
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  • 15
    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.
    Downloads: 0 This Week
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  • 16
    C++ library for interpreting HTTP requests as REST service calls. Classes for method, resource, endpoint make it easy to expose business objects as a REST interface. Provides etags and time versioning constraints for HTTP caching control.
    Downloads: 0 This Week
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  • 17
    Transform SWF is an easy to use library for reading and writing Flash and Flash Video files. 06/12/2010: This project is now hosted on GitHub: https://github.com/StuartMacKay/transform-cxx
    Downloads: 0 This Week
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  • 18
    High performance C++ UDP-based networking library on UDT, suitable for games or VoIP applications
    Downloads: 0 This Week
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  • 19

    libqtcp

    Library that provides communication over a network

    The project is based on Qt framework. It wraps the capabilities related to networking in simple to use, service based server and client configurations. The library starts with the tcp protocol as it is implemented in the QtNetwork module[1] and creates two top level managing structures: a client and a server. Both support multiple connections that may or may not be encrypted. On top of this basic framework we implement the service support. Any server may host any number of services that are identified by their names in the client-server connection. The source contains simple igu8i based implementations for both a client and a server. [1] http://qt-project.org/doc/qt-4.8/qtnetwork.html
    Downloads: 0 This Week
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  • 20
    libtld

    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.
    Downloads: 0 This Week
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  • 21
    qDecoder - CGI Library for C/C++
    ======================================================================================= 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.
    Downloads: 0 This Week
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  • 22

    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.
    Downloads: 0 This Week
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  • 23
    Spiral is an event-driven networking engine written in C++ and licensed under the MIT license. It is a port of the Twisted Matrix python library. It aims to be source compatible, Twisted source code should be easy to adapt to C++.
    Downloads: 0 This Week
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  • 24

    Easy Simple Network Library

    A MINA-like, cross-platform C++ network library based on boost::asio

    The full name of "esnetwork" is "easy simple network library". It is a cross-platform C++ network library based on boost::asio (http://think-async.com). It aims to be a simple, easy-to-use and full-featured networking framework, like MINA in Java.
    Downloads: 0 This Week
    Last Update:
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