* [C++ Standard Library](http://en.wikipedia.org/wiki/C%2B%2B_Standard_Library) - A collection of classes and functions, which are written in the core language and part of the C++ ISO Standard itself.
* [Standard Template Library](http://en.wikipedia.org/wiki/Standard_Template_Library) - The Standard Template Library (STL).
* [ISO C++ Standards Committee](https://github.com/cplusplus) - ISO/IEC JTC1/SC22/WG21 - The C++ Standards Committee. [website](http://www.open-std.org/JTC1/SC22/WG21/)
* [Apache C++ Standard Library](http://stdcxx.apache.org/) - A collection of algorithms, containers, iterators, and other fundamental components. [Apache2]
* [ASL](http://stlab.adobe.com/) - Adobe Source Libraries provides peer-reviewed and portable C++ source libraries. [MIT]
* [Boost](https://github.com/boostorg) - A large collection of generic C++ libraries. [Boost] [website](http://www.boost.org/)
* [BDE](https://github.com/bloomberg/bde) - The BDE Development Environment from Bloomberg Labs. [MIT]
* [Cinder](http://libcinder.org/) - A community-developed, free and open source library for professional-quality creative coding. [BSD]
* [Cxxomfort](http://ryan.gulix.cl/fossil.cgi/cxxomfort/) - A small, header-only library that backports to C++03 some of the nifty C++11 goodies. [MIT]
* [Dlib](http://dlib.net/) - A general purpose cross-platform C++ library designed using contract programming and modern C++ techniques. [Boost]
* [EASTL](https://github.com/paulhodge/EASTL) - Public part of EA-STL. [BSD]
* [ffead-cpp](https://github.com/sumeetchhetri/ffead-cpp) - Framework for Enterprise Application Development. [Apache2]
* [Folly](https://github.com/facebook/folly) - An open-source C++ library developed and used at Facebook. [Apache2]
* [JUCE](http://www.juce.com/) - An all-encompassing C++ class library for developing cross-platform software. [Core-Module:ISC/Rest: GPL2/GPL3/Commercial]
* [libPhenom](https://github.com/facebook/libphenom) - libPhenom is an eventing framework for building high performance and high scalability systems in C. [Apache2]
* [LibSourcey](https://github.com/sourcey/libsourcey) - C++11 evented IO for real-time video streaming and high performance networking applications. [LGPL]
* [LibU](https://github.com/koanlogic/libu) - A multiplatform utility library written in C. [BSD]
* [Loki](http://loki-lib.sourceforge.net/) - A C++ library of designs, containing flexible implementations of common design patterns and idioms. [MIT]
* [MiLi](https://code.google.com/p/mili/) - Minimal headers-only C++ Library. [Boost]
* [openFrameworks](http://www.openframeworks.cc/) - An open source C++ toolkit for creative coding. [MIT]
* [Qt](http://qt-project.org/) - A cross-platform application and UI framework. [LGPL]
* [Reason](http://code.google.com/p/reason/) - A cross platform framework designed to bring the ease of use of Java, .Net, or Python to developers who require the performance and strength of C++. [GPLv2]
* [root](http://root.cern.ch) - The ROOT system provides a set of OO frameworks with all the functionality needed to handle and analyze large amounts of data in a very efficient way. Used at [CERN](http://cern.ch). [LGPL]
* [btsk](https://github.com/aigamedev/btsk) - Game Behavior Tree Starter Kit. [zlib]
* [Evolving Objects](http://eodev.sourceforge.net/) - A template-based, ANSI-C++ evolutionary computation library which helps you to write your own stochastic optimization algorithms insanely fast. [LGPL]
* [Neu](https://github.com/andrometa/neu) - A C++ 11 framework, collection of programming languages, and multipurpose software system designed for: the creation of artificial intelligence applications. [BSD]
* [Boost.Asio](http://think-async.com/) - A cross-platform C++ library for network and low-level I/O programming. [Boost]
* [libev](http://libev.schmorp.de/) - A full-featured and high-performance event loop that is loosely modelled after libevent, but without its limitations and bugs. [BSD and GPL]
* [libevent](http://libevent.org/) - An event notification library. [BSD]
* [FMOD](http://www.fmod.org/) - An easy to use crossplatform audio engine and audio content creation tool for games. [Free for non-commercial/Commercial]
* [Maximilian](https://github.com/micknoise/Maximilian) - C++ Audio and Music DSP Library. [MIT]
* [OpenAL](http://www.openal.org/) - Open Audio Library - A crossplatform audio API. [BSD/LGPL/Commercial]
* [Tonic](https://github.com/TonicAudio/Tonic) - Easy and efficient audio synthesis in C++. [Unlicense]
* [PhysicsFS](https://icculus.org/physfs/) - PhysicsFS is a library to provide abstract access to various archives. It is intended for use in video games, and the design was somewhat inspired by Quake 3's file subsystem. [zlib]
* [KArchive](https://projects.kde.org/projects/frameworks/karchive) - KArchive is a library for creating, reading, writing and manipulating file archives. It provides easy to use classes for manipulation of archive file formats like zip and tar. It also provides transparent compression and decompression of data, using formats like gzip, via a subclass of QIODevice. [LGPL]
* [LZ4](https://code.google.com/p/lz4/) - Extremely Fast Compression algorithm. [BSD]
* [LZHAM](https://code.google.com/p/lzham/) - Lossless data compression library with a compression ratio similar to LZMA but with much faster decompression. [BSD]
* [LZMA](http://www.7-zip.org/sdk.html) - The default and general compression method of 7z format. [LGPL]
* [LZMAT](http://www.matcode.com/lzmat.htm) - An extremely fast real-time lossless data compression library. [GPL]
* [miniz](https://code.google.com/p/miniz/) - Single C source file Deflate/Inflate compression library with zlib-compatible API, ZIP archive reading/writing, PNG writing. [Unlicense]
* [Minizip](https://github.com/nmoinvaz/minizip) - Zlib with latest bug fixes that supports PKWARE disk spanning, AES encryption, and IO buffering. [zlib]
* [Snappy](https://code.google.com/p/snappy/) - A fast compressor/decompressor. [BSD]
* [ZLib](http://zlib.net/) - A very compact compression library for data streams. [zlib]
* [ZZIPlib](http://zziplib.sourceforge.net/) - Provides read access on ZIP-archives. [MPL/LGPL]
* [React](http://schlangster.github.io/cpp.react/) - C++React is reactive programming library for C++11. Generally speaking, it provides abstractions to handle change propagation and data processing for a push-based event model. A more practical description is that it enables coordinated, multi-layered - and potentially parallel [boost]
* [C++ B-tree](https://code.google.com/p/cpp-btree/) - A template library that implements ordered in-memory containers based on a B-tree data structure.
* [SQLite](http://www.sqlite.org/) - A completely embedded, full-featured relational database in a few 100k that you can include right into your project.
* [Cocos2d-x](http://www.cocos2d-x.org/) - A multi-platform framework for building 2d games, interactive books, demos and other graphical applications.
* [Qwt](http://qwt.sourceforge.net/) - Qt Widgets for Technical Applications.
* [QwtPlot3D](http://qwtplot3d.sourceforge.net/) - A feature-rich Qt/OpenGL-based C++ programming library, providing essentially a bunch of 3D-widgets.
* [OtterUI](https://github.com/Twolewis/OtterUI) - OtterUI is a User Interface development solution for embedded systems and interactive entertainment software.
* [wxWidgets](http://wxwidgets.org/) - A C++ library that lets developers create applications for Windows, Mac OS X, Linux and other platforms with a single code base.
* [Skia](https://github.com/google/skia) - A complete 2D graphic library for drawing Text, Geometries, and Images. [webpage](https://sites.google.com/site/skiadocs/home)
* [Eigen](http://eigen.tuxfamily.org/) - A high-level C++ library of template headers for linear algebra, matrix and vector operations, numerical solvers and related algorithms. [MPL2]
* [nope.c](https://github.com/riolet/nope.c) - A C language-based ultra-light software platform for scalable server-side and networking applications. Think node.js for C programmers.
* [POCO](http://pocoproject.org/) - C++ class libraries and frameworks for building network- and internet-based applications that run on desktop, server, mobile and embedded systems.
* [ofxBox2d](https://github.com/vanderlin/ofxBox2d) - openFrameworks wrapper for Box2D.
* [Simbody](https://github.com/simbody/simbody) - High-performance C++ multibody dynamics/physics library for simulating articulated biomechanical and mechanical systems like vehicles, robots, and the human skeleton.
* [SimpleBinaryEncoding](https://github.com/real-logic/simple-binary-encoding) - encoding and decoding application messages in binary format for low-latency applications. [Apache2]
* [QDjango](https://github.com/jlaine/qdjango/) - QDjango is a web framework written in C++ and built on top of the Qt library. Where possible it tries to follow django's API, hence its name [LGPL]
*XML is crap. Really. There are no excuses. XML is nasty to parse for humans, and it's a disaster to parse even for computers. There's just no reason for that horrible crap to exist. - Linus Torvalds*
* [Expat](http://www.libexpat.org/) - An XML parser library written in C.
* [Libxml2](http://xmlsoft.org/) - The XML C parser and toolkit of Gnome.
* [libxml++](http://libxmlplusplus.sourceforge.net/) - An XML Parser for C++.
* [PugiXML](http://pugixml.org/) - A light-weight, simple and fast XML parser for C++ with XPath support.
* [RapidXml](http://rapidxml.sourceforge.net/) - An attempt to create the fastest XML parser possible, while retaining useability, portability and reasonable W3C compatibility.
* [TinyXML](http://sourceforge.net/projects/tinyxml/) - A simple, small, minimal, C++ XML parser that can be easily integrating into other programs.
* [TinyXML2](https://github.com/leethomason/tinyxml2) - A simple, small, efficient, C++ XML parser that can be easily integrating into other programs.
* [TinyXML++](https://code.google.com/p/ticpp/) - A completely new interface to TinyXML that uses MANY of the C++ strengths. Templates, exceptions, and much better error handling.
* [Xerces-C++](http://xerces.apache.org/xerces-c/) - A validating XML parser written in a portable subset of C++.
* [ZBar](http://zbar.sourceforge.net/) - A barcode scanner library, which allows to scan photos/images/video streams for barcodes and return their value.
* [codepad](http://codepad.org/) - An online compiler/interpreter, and a simple collaboration tool.
* [CodeTwist](http://codetwist.com/) - A simple online compiler/interpreter, where you can paste your C, C++ or Java code and execute it online and see results.
* [CompileOnline](http://www.compileonline.com/compile_cpp11_online.php) - Compile and Execute C++ online on Linux.
* [Ideone](http://ideone.com/) - An online compiler and debugging tool which allows you to compile source code and execute it online in more than 60 programming languages.
* [FASTBuild](http://www.fastbuild.org/docs/home.html) - high performance, open-source build system supporting highly scalable compilation, caching and network distribution.
* [tundra](https://github.com/deplinenoise/tundra) - high-performance code build system designed to give the best possible incremental build times even for very large software projects.
* [tup](http://gittup.org/tup/) - file-based build system that monitors in the background for changed files.
*List of tools for improving quality and reducing defects by code analysis*
* [Cppcheck](http://cppcheck.sourceforge.net/) - A tool for static C/C++ code analysis. - [source](https://github.com/danmar/cppcheck)
* [OCLint](http://oclint.org/) - A static source code analysis tool to improve quality and reduce defects for C, C++ and Objective-C. - [source](https://github.com/oclint/oclint)
* [List of tools for static code analysis](http://en.wikipedia.org/wiki/List_of_tools_for_static_code_analysis#C.2FC.2B.2B) - A list of tools for static code analysis from Wikipedia.
* [The C++ Annotations](http://cppannotations.sourceforge.net/annotations/html/) - An in-depth guide on C++, intended for people with a good knowledge of C who want to make the transition to C++.
* [The Definitive C++ Book Guide and List](http://stackoverflow.com/questions/388242/the-definitive-c-book-guide-and-list) - A collection of quality books and an approximate skill level.
* [Awesome C Programming Tutorials in Hi Def [HD]](https://www.youtube.com/playlist?list=PLCB9F975ECF01953C) - A collection of detailed C Programming Language Tutorials for Beginners and New Programmers.
* [C++](https://www.youtube.com/playlist?list=PL2F919ADECA5E39A6) - by VoidRealms.
* [C++ Qt Programming](https://www.youtube.com/playlist?list=PL2D1942A4688E9D63) - by VoidRealms.
* [C++ Programming Tutorials Playlist](https://www.youtube.com/playlist?list=PLAE85DE8440AA6B83) - thenewboston Official Buckys C++ Programming Tutorials Playlist.
* [C++ Programming Tutorials from thenewboston](https://www.youtube.com/playlist?list=PLF541C2C1F671AEF6) - These are all of thenewboston's C++ programming tutorials.
* [C++ GUI with Qt Playlist](https://www.youtube.com/playlist?list=PLD0D54219E5F2544D) - Official Playlist for thenewboston C++ GUI with Qt tutorials.
* [C Programming Tutorials](https://www.youtube.com/playlist?list=PL78280D6BE6F05D34) - All of thenewboston's C programming tutorials are right here.
* [github-cheat-sheet](https://github.com/tiimgreen/github-cheat-sheet) - A list of cool features of Git and GitHub.
* [ToolsOfTheTrade](https://github.com/cjbarber/ToolsOfTheTrade) - Tools of The Trade, from Hacker News.
* [cheatsheets.org](http://www.cheatsheets.org/) - The largest collection of reference cards for developers.
* [cheat-sheets.org](http://www.cheat-sheets.org/) - All cheat sheets, round-ups, quick reference cards, quick reference guides and quick reference sheets in one page.
* [thefreecountry.com](http://www.thefreecountry.com/) - A collection of free programming resources, free webmasters' resources, free security resources and free utilities.
