12 top-notch libraries for C++ programming

Barbie Espinol

C++ is a basic-objective units programming language that is now more than 40 decades old, obtaining been made in 1979. Considerably from getting rid of steam, C++ nonetheless ranks around the major of a number of programming language attractiveness indexes.

Smoothing the path to C++ utilization is broad support for the language amid the makers of IDEs, editors, compilers, take a look at frameworks, code good quality, and other resources. Software package builders also have at their disposal a lot of superb libraries to assist with constructing C++ programs. Below are 12 that C++ developers count on. 

Lively Template Library

From Microsoft, Energetic Template Library (ATL) is a established of C++ lessons for creating COM (Popular Item Design) objects, with guidance for COM functions such as dual interfaces, standard COM enumerator interfaces, relationship factors, and ActiveX controls. Accessible with the Visible Studio IDE, ATL can be applied to build single-threaded objects, apartment-design objects, cost-free-threaded product objects, or both absolutely free-threaded and apartment-product objects.

Asio C++ library

The Asio C++ library is utilised for community and reduced-level I/O programming, supplying a consistent asynchronous product. Giving simple creating blocks for concurrency, C++ networking, and other sorts of I/O, Asio has been applied in purposes ranging from smartphone apps and video games to highly interactive sites and true-time transaction devices. Tasks utilizing Asio involve the WebSocketPP library and the DDT3 distant debugger for the Lua language. Asio is accessible as absolutely free open source under the Increase Application License, and supported on Linux, Windows, MacOS, and FreeBSD.


Boost provides cost-free, peer-reviewed transportable C++ resource libraries, accessible from increase.org, that do the job with the C++ standard library. Improve libraries are meant to be applied across a spectrum of applications. Amid the assortment are libraries for JSON, math, multi-index, file technique, and geometry. Improve will work on most modern functioning devices including Linux, Unix, and Home windows. Linux and Unix distributions this sort of as Debian, Fedora, and NetBSD currently involve pre-developed Strengthen offers.


Cinder is an open up resource library for “creative coding” in C++. Practical for apps this kind of as audio, computational geometry, graphics, and video, Cinder supports system-native windowing and event-dealing with, together with I/O abstraction, and has a designed-in API for XML and JSON parsing. Developed all-around idiomatic C++ 11 attributes these types of as shared_ptr, the library ships with many samples. Cinder supports MacOS, iOS, Linux, Home windows, and Windows UWP.


Eigen is a C++ template library for linear algebra, such as matrices, vectors, numerical solvers, and associated algorithms. All matrix measurements are supported, from compact, set matrices to arbitrarily huge, dense matrices. Algorithms are chosen for trustworthiness. All normal numeric forms are supported. For pace, Eigen capabilities expression templates to intelligently take out temporaries and permit lazy evaluation. Freely offered under the Mozilla Public License 2 and downloadable from the Eigen challenge web page, Eigen has been fitted with an API described by proponents as expressive and cleanse and all-natural to C++ programmers. The check suite for Eigen has been run in opposition to quite a few compilers to make certain reliability.


FloatX, or Float Prolonged, is a header-only library for low-precision, floating position sort emulation. Even though natively compatible with C++ compilers, FloatX can be identified as by other languages these kinds of as Python or Fortran. Floating issue types are extended outside of the indigenous single and double precision styles. Template sorts are offered that allow for the user to find the variety of bits used for the exponent as nicely as important areas of the floating level amount. FloatX is based mostly on the idea of the FlexFloat library for emulating lessened-precision floating styles, but implements a superset of FlexFloat functionality in C and delivers C++ wrappers. FloatX emerged from the Open up Transprecision Computing initiative. It is readily available no cost beneath the Apache License 2.. 


OpenCV, or Open up Supply Pc Vision Library, is a laptop or computer vision and device studying library penned natively in C++, and available underneath an Apache 2 license. OpenCV was designed to provide common infrastructure for computer eyesight purposes and accelerate the use of equipment perception in business products and solutions. A lot more than 2,500 optimized algorithms for face recognition, item detection, object classification, 3D model extraction, impression search, and significantly a lot more, OpenCV has amassed a consumer local community of a lot more than 47,000 folks. Readily available from the OpenCV project web site, the library gives C++, Java, Python, and Matlab interfaces and supports Windows, Linux, Android, and MacOS. CUDA and OpenCL interfaces are in advancement.

Poco C++ Libraries

Meant to simplify C++ advancement, the Poco (Transportable Factors) C++ Libraries are cross-system C++ libraries for constructing Internet and community purposes to run on techniques ranging from desktops and servers to mobile and IoT products. The libraries also can be used to construct microservices with Rest APIs for machine finding out or info analytics. The Poco libraries are comparable in concept to the Java Class Library, Microsoft’s .Net Framework, or Apple Cocoa.

Builders can use Poco libraries to make application servers in C++ that speak to SQL databases, Redis, or MongoDB, or to create computer software for IoT devices that converse to cloud again-finishes. Amid the features of the libraries are a cache framework, HTML sort handling, an FTP client for transferring files, and an HTTP server and client. The Poco libraries are readily available free of charge below the Raise Application License and downloadable from GitHub


Velox is an embeddable, vectorized execution library for OLAP techniques. The library is intended to improve knowledge processing techniques and query engines. The job was begun as an inner engineering challenge at Facebook in 2020 and then open sourced. In common usage eventualities, Velox will take a entirely optimized question plan as input and performs the explained computation. Components include a substantial-level typing procedure, a columnar memory module, purpose deals, and community serializers. Velox is out there on GitHub in the Facebook Incubator repo.

Windows Template Library

Initially from Microsoft, the Windows Template Library (WTL) is (considering that 2004) an open up supply library for constructing lightweight Home windows applications and UI factors. Positioned as an alternative to the Microsoft Foundation Courses toolkit, WTL extends ATL and delivers a set of lessons for controls, dialogs, frame home windows, and GDI objects.


Wt is a web GUI library in fashionable C++ that will allow builders to develop interactive world-wide-web UIs with widgets, without having acquiring to create JavaScript. A server-aspect answer, Wt does request dealing with and web page rendering, supplying created-in protection, PDF rendering, a 2D and 3D painting program, an item-relational mapping library, a charting library, and an authentication framework. The core library is open supply, delivering a hybrid single-website page framework that can be deployed on Linux, Unix, or Windows.

Formulated by software package engineering company Emweb, Wt is compatible with HTML5 and HTML4 browsers as well as with plain HTML person brokers. And Wt can integrate with 3rd-celebration JavaScript libraries. With Wt, an application is outlined as a hierarchy of widgets—ranging from generic widgets this sort of as thrust buttons to specialized widgets this kind of as an complete web site widget. The widget tree is rendered as HTML/JavaScript in the browser. Wt can be downloaded from the project webpage. Each open resource and industrial use conditions are obtainable. 


Yocto/GL is a collection of modest C++17 libraries for constructing physically-based graphics algorithms. It is created in a details-oriented fashion for ease of advancement, and break up into compact libraries to make code navigation much easier. Knowledge is stored in straightforward structs and accessed with cost-free features or directly.

Yocto/GL incorporates code from the PCG random number generator, enhance hash_merge, and external libraries from the public area or that are provided with their own licenses. The builders of Yocto/GL like a useful tactic instead than an item-oriented a single, favoring no cost features to class strategies. Capabilities and knowledge are outlined in sibling namespaces contained in the yocto namespace.

Yocto/GL is unveiled under the MIT license and out there from GitHub. A C++17 compiler is expected.

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