A massively spiffy yet delicately unobtrusive compression library.
Google's language-neutral, platform-neutral, extensible mechanism for serializing structured data.
Open Source Computer Vision Library
OpenSSL is an open source project that provides a robust, commercial-grade, and full-featured toolkit for the Transport Layer Security (TLS) and Secure Sockets Layer (SSL) protocols. It is also a general-purpose cryptography library.
LLM inference in C/C++
The Python programming language
Fast UTF-8 validation with Range algorithm (NEON+SSE4+AVX2)
JSON for Modern C++
An OCR Engine that was developed at HP Labs between 1985 and 1995... and now at Google.
A command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, POP3, POP3S, RTMP, RTMPS, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET, TFTP, WS and WSS. libcurl offers a myriad of powerful features
Qt Base provides the basic non-GUI functionality required by all Qt applications.
LevelDB is a fast key-value storage library written at Google that provides an ordered mapping from string keys to string values.
Qt Base (Core, Gui, Widgets, Network, ...)
Zstandard - Fast real-time compression algorithm
stb single-file public domain libraries for C/C++
The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.
Very fast, header-only/compiled, C++ logging library.
libuv is a multi-platform support library with a focus on asynchronous I/O.
A library that provides an embeddable, persistent key-value store for fast storage
A simple and easy-to-use library to enjoy videogames programming
A fast JSON parser/generator for C++ with both SAX/DOM style API <http://rapidjson.org/>
C++ template library for linear algebra: matrices, vectors, numerical solvers, and related algorithms.
Abseil is an open-source collection of C++ library code designed to augment the C++ standard library. The Abseil library code is collected from Google's own C++ code base, has been extensively tested and used in production, and is the same code we depend on in our daily coding lives.
libpng is a library implementing an interface for reading and writing PNG (Portable Network Graphics) format files
bzip2 is a freely available, patent free, high-quality data compressor. It typically compresses files to within 10% to 15% of the best available techniques (the PPM family of statistical compressors), whilst being around twice as fast at compression and six times faster at decompression.
Darknet is an open source neural network framework written in C and CUDA. You only look once (YOLO) is a state-of-the-art, real-time object detection system, best example of darknet functionalities.
libjpeg-turbo is a JPEG image codec that uses SIMD instructions (MMX, SSE2, NEON, AltiVec) to accelerate baseline JPEG compression and decompression on x86, x86-64, ARM, and PowerPC systems.
Extra CMake Modules (ECM), extra modules and scripts for CMake
Portable, general-purpose utility library.
ncnn is a high-performance neural network inference framework optimized for the mobile platform
An incremental parsing system for programming tools.
Parsing gigabytes of JSON per second : used by Facebook/Meta Velox, the Node.js runtime, ClickHouse, WatermelonDB, Apache Doris, Milvus, StarRocks
{fmt} is an open-source formatting library providing a fast and safe alternative to C stdio and C++ iostreams.
A modern, C++-native, test framework for unit-tests, TDD and BDD - using C++14, C++17 and later (C++11 support is in v2.x branch, and C++03 on the Catch1.x branch)
Open standard for machine learning interoperability
Simple DirectMedia Layer is a cross-platform development library designed to provide low level access to audio, keyboard, mouse, joystick, and graphics hardware via OpenGL and Direct3D.
Lossless compression algorithm, providing compression speed at 400 MB/s per core.
A collection of tools and utilities that come with the Qt framework to assist developers in the creation, management, and deployment of Qt applications.
X.org macros utilities.
Simple, secure & standards compliant web I/O for the most demanding of applications
ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.
A library to render fonts.
Asio is a cross-platform C++ library for network and low-level I/O programming that provides developers with a consistent asynchronous model using a modern C++ approach.
Yoga is a cross-platform layout engine which implements Flexbox
brpc is an Industrial-grade RPC framework using C++ Language, which is often used in high performance system such as Search, Storage, Machine learning, Advertisement, Recommendation etc. "brpc" means "better RPC".
A fast, distributed, high performance gradient boosting (GBT, GBDT, GBRT, GBM or MART) framework based on decision tree algorithms, used for ranking, classification and many other machine learning tasks.
Google's common Java, C++ and JavaScript library for parsing, formatting, and validating international phone numbers.
Libxml2 is the XML C parser and toolkit developed for the Gnome project (but usable outside of the Gnome platform).
pybind11 is a lightweight header-only library that exposes C++ types in Python and vice versa, mainly to create Python bindings of existing C++ code
Provides a set of APIs that can be used to host .NET Core (dotnet)
a generic-purpose lossless compression algorithm that compresses data using a combination of a modern variant of the LZ77 algorithm, Huffman coding and 2nd order context modeling.
:zap: KCP - A Fast and Reliable ARQ Protocol
An event notification library
A modern, portable, easy to use crypto library.
🌱Light and powerful C++ web framework for highly scalable and resource-efficient web application. It's zero-dependency and easy-portable.
The systemd System and Service Manager
X Window System unified protocol definitions
Modern C++ toolkit containing machine learning algorithms and tools for creating complex software in C++
The official Open-Asset-Importer-Library Repository. Loads 40+ 3D-file-formats into one unified and clean data structure.
A single file C++11 header-only HTTP/HTTPS server and client library
Approximate Nearest Neighbors in C++/Python optimized for memory usage and loading/saving to disk
About C++ Parallel Computing and Asynchronous Networking Engine
iconv() text conversion.
Simple DirectMedia Layer is a cross-platform development library designed to provide low level access to audio, keyboard, mouse, joystick, and graphics hardware via OpenGL and Direct3D.
Bullet Physics SDK: real-time collision detection and multi-physics simulation for VR, games, visual effects, robotics, machine learning etc.
The ZeroMQ lightweight messaging kernel is a library which extends the standard socket interfaces with features traditionally provided by specialised messaging middleware products
JsonCpp is a C++ library that allows manipulating JSON values, including serialization and deserialization to and from strings. It can also preserve existing comment in unserialization/serialization steps, making it a convenient format to store user input files.
Tiny cross-platform webview library for C/C++. Uses WebKit (GTK/Cocoa) and Edge WebView2 (Windows).
mimalloc is a compact general purpose allocator with excellent performance.
Qt Declarative (Quick 2)
Apache Thrift is a software project spanning a variety of programming languages and use cases. Our goal is to make reliable, performant communication and data serialization across languages as efficient and seamless as possible.
A cross-platform library to access USB devices
Ultralightweight JSON parser in ANSI C
MySQL Server, the world's most popular open source database, and MySQL Cluster, a real-time, open source transactional database.
Drogon: A C++14/17/20 based HTTP web application framework running on Linux/macOS/Unix/Windows
Open Graphics Library (OpenGL)[3][4][5] is a cross-language, cross-platform application programming interface (API) for rendering 2D and 3D vector graphics.
Cap'n Proto serialization/RPC system - core tools and C++ library
oneAPI Threading Building Blocks (oneTBB)
Simple and fast multimedia library
Ninja is a small build system with a focus on speed.
XML parser library written in C
A real time, nanosecond resolution, remote telemetry, hybrid frame and sampling profiler for games and other applications.
Embedded web server, with TCP/IP network stack, MQTT and Websocket
Z3 is a theorem prover from Microsoft Research
A fast multi-producer, multi-consumer lock-free concurrent queue for C++11
RE2 is a fast, safe, thread-friendly alternative to backtracking regular expression engines like those used in PCRE, Perl, and Python. It is a C++ library.
A General-purpose Task-parallel Programming System using Modern C++
The X Window System is a network-transparent window system that was designed at MIT.
MNN is a blazing fast, lightweight deep learning framework, battle-tested by business-critical use cases in Alibaba. Full multimodal LLM Android App:[MNN-LLM-Android](./apps/Android/MnnLlmChat/README.md)
Gaming meets modern C++ - a fast and reliable entity component system (ECS) and much more
Point Cloud Library (PCL) is open source library for 2D/3D image and point cloud processing.
SentencePiece is an unsupervised text tokenizer and detokenizer mainly for Neural Network-based text generation systems where the vocabulary size is predetermined prior to the neural model training
Simple and portable (but not inflexible) GUI library in C that uses the native GUI technologies of each platform it supports.
TinyXML2 is a simple, small, efficient, C++ XML parser that can be easily integrated into other programs.
Light-weight, simple and fast XML parser for C++ with XPath support
A fast compressor/decompressor.
A massively spiffy yet delicately unobtrusive compression library.
Extremely fast non-cryptographic hash algorithm
SQLite is a software library that implements a self-contained, serverless, zero-configuration, transactional SQL database engine.
This is a minimal state immediate mode graphical user interface toolkit written in ANSI C and licensed under public domain
jemalloc is a general purpose malloc(3) implementation that emphasizes fragmentation avoidance and scalable concurrency support
A cross-platform, linkable library implementation of Git that you can use in your application.
The official SuiteSparse library: a suite of sparse matrix algorithms authored or co-authored by Tim Davis, Texas A&M University.
Skia is an open source 2D graphics library which provides common APIs that work across a variety of hardware and software platforms.
Metapackage for packages which provide BLAS
Qt Declarative (Quick 2)
Mosquitto is an open source message broker that implements the MQ Telemetry Transport protocol versions 3.1 and 3.1.1, MQTT provides a lightweight method of carrying out messaging using a publish/subscribe model, This makes it suitable for machine to machine messaging such as with low power sensors or mobile devices such as phones, embedded computers or microcontrollers like the Arduino
Capstone disassembly/disassembler framework for ARM, ARM64 (ARMv8), Alpha, BPF, Ethereum VM, HPPA, LoongArch, M68K, M680X, Mips, MOS65XX, PPC, RISC-V(rv32G/rv64G), SH, Sparc, SystemZ, TMS320C64X, TriCore, Webassembly, XCore and X86.
Multi-Joint dynamics with Contact. A general purpose physics simulator.
The POCO C++ Libraries are powerful cross-platform C++ libraries for building network- and internet-based applications that run on desktop, server, mobile, IoT, and embedded systems.
A library to benchmark code snippets, similar to unit tests.
WasmEdge is a lightweight, high-performance, and extensible WebAssembly runtime for cloud native, edge, and decentralized applications. It powers serverless apps, embedded functions, microservices, smart contracts, and IoT devices.
Addons to QtCore
Electronic Arts Standard Template Library. It is a C++ template library of containers, algorithms, and iterators useful for runtime and tool development across multiple platforms. It is a fairly extensive and robust implementation of such a library and has an emphasis on high performance above all other considerations.
Metapackage for packages which provide LAPACK
A library that supports the manipulation of TIFF image files
A cross-platform protocol library to communicate with iOS devices
ChakraCore is an open source Javascript engine with a C API.
Torch's TH library
A project for conversions between Traditional Chinese, Simplified Chinese and Japanese Kanji (Shinjitai)
Compression library with an API similar to that of zlib.
An open source C++ engine for simulating rigid bodies in 2D
The pattern matching swiss knife
yaml-cpp is a YAML parser and emitter in C++ matching the YAML 1.2 spec.
The C++ REST SDK is a Microsoft project for cloud-based client-server communication in native code using a modern asynchronous C++ API design. This project aims to help C++ developers connect to and interact with services.
COLMAP is a general-purpose Structure-from-Motion (SfM) and Multi-View Stereo (MVS) pipeline with a graphical and command-line interface. It offers a wide range of features for reconstruction of ordered and unordered image collections. The software is licensed under the new BSD license.
Cairo is a 2D graphics library with support for multiple output devices. Currently supported output targets include the X Window System (via both Xlib and XCB), Quartz, Win32, image buffers, PostScript, PDF, and SVG file output. Experimental backends include OpenGL, BeOS, OS/2, and DirectFB.
A GNU framework to help produce multi-lingual messages.
HDF5 is a data model, library, and file format for storing and managing data
Vowpal Wabbit is a machine learning system which pushes the frontier of machine learning with techniques such as online, hashing, allreduce, reductions, learning2search, active, and interactive learning.
Open source log handling and visualization for spatial and embodied AI. Managed infrastructure to ingest, store, analyze, and stream data at scale with built-in visual debugging. Fast, flexible, and easy to use.
OpenBLAS is an optimized BLAS library based on GotoBLAS2 1.13 BSD version.
Minimal cross-platform standalone C headers
A collection of C++ HTTP libraries including an easy to use HTTP server.
Widget toolkit and tools library for creating graphical user interfaces (GUIs) for cross-platform applications.
Unicorn CPU emulator framework (ARM, AArch64, M68K, Mips, Sparc, PowerPC, RiscV, S390x, TriCore, X86)
Configuration system
The getopt and getopt_long functions automate some of the chore involved in parsing typical unix command line options.
C++ implementation of the Google logging module
WebP codec: library to encode and decode images in WebP format
C++ Requests is a simple wrapper around libcurl inspired by the excellent Python Requests project.
Intel® RealSense™ SDK 2.0 is a cross-platform library for Intel® RealSense™ depth cameras (D400 series and the SR300).
A multi core friendly rigid body physics and collision detection library. Written in C++. Suitable for games and VR applications. Used by Horizon Forbidden West.
Draco is a library for compressing and decompressing 3D geometric meshes and point clouds. It is intended to improve the storage and transmission of 3D graphics.
The Quite OK Image Format for fast, lossless image compression
Advanced internationalization framework
Static reflection for enums (to string, from string, iteration) for modern C++, work with any enum type without any macro or boilerplate code
CMake helper functions for building robotic applications
Universally unique id library
Xlib-based library for common extensions to the X11 protocol
CUDA Templates for Linear Algebra Subroutines
An open source, portable, easy to use, readable and flexible TLS library, and reference implementation of the PSA Cryptography API. Releases are on a varying cadence, typically around 3 - 6 months between releases.
Industry-standard navigation-mesh toolset for games
Vulkan header files and API registry
The WebAssembly Binary Toolkit
C99 implementation of the TLS/SSL protocols.
Jsonnet - The data templating language
Open-source cross-platform C++ application framework for desktop and mobile applications, including VST, VST3, AU, AUv3, AAX and LV2 audio plug-ins and plug-in hosts
SQLCipher extends the SQLite database library to add security enhancements that make it more suitable for encrypted local data storage.
Libhv is a C/C++ network library similar to libevent/libuv.
The Wren Programming Language. Wren is a small, fast, class-based concurrent scripting language.
A C++ library that implements commandline flags processing
The GNU Multiple Precision Arithmetic Library
HarfBuzz OpenType text shaping engine
Meta-package that provides PThreads4W on Windows, or assumes presence of system pthreads on POSIX systems.
Higher level programming in C
A large scale non-linear optimization library
The fastest feature-rich C++11/14/17/20 single-header testing framework
Lightweight and modular C++11 graphics middleware for games and data visualization
a header-only C++11 serialization library (built in support for binary, XML and JSon)
Duktape - embeddable Javascript engine with a focus on portability and compact footprint
Universal Scene Description (USD) is an efficient, scalable system for authoring, reading, and streaming time-sampled scene description for interchange between graphics applications.
open Multiple View Geometry library. Basis for 3D computer vision and Structure from Motion.
The Computational Geometry Algorithms Library (CGAL) is a C++ library that aims to provide easy access to efficient and reliable algorithms in computational geometry.
Range library for C++14/17/20, basis for C++20's std::ranges
An API and runtime that allows access to VR hardware from multiple vendors without requiring that applications have specific knowledge of the hardware they are targeting.
This repository is for active development of the Azure SDK for C++. For consumers of the SDK we recommend visiting our versioned developer docs at https://azure.github.io/azure-sdk-for-cpp.
A simple high-performance implementation of several "scalability protocols".
Portable, high level programming interface to various calling conventions
Libwebsockets is a lightweight pure C library built to use minimal CPU and memory resources, and provide fast throughput in both directions as client or server.
Addons to QtWidgets
Dirent is a C/C++ programming interface that allows programmers to retrieve information about files and directories under Linux/UNIX. This project provides Linux compatible Dirent interface for Microsoft Windows.
The QuantLib C++ library
Library for configuring and customizing font access.
A C++14 implementation of deep learning. It is suitable for deep learning on limited computational resource.
Antialiased 2D vector drawing library on top of OpenGL for UI and visualizations.
Advanced 2D Plotting for Dear ImGui
Totally open, royalty-free, highly versatile audio codec
High-quality QR Code generator library in Java, TypeScript/JavaScript, Python, Rust, C++, C.
Duilib is a free open source DirectUI interface library under Windows. It is widely accepted by major Internet companies due to its simple and easy to expand design and stable and efficient implementation. It is widely used in IM, video client, stock market software, navigation software, and mobile phone assistive software. Duilib is still evolving, and will continue to improve in many aspects such as documentation, examples, animations, and rendering engines.
OpenH264 is a codec library which supports H.264 encoding and decoding. It is suitable for use in real time applications such as WebRTC.
C++ tensors with broadcasting and lazy computing
Detours is a software package for monitoring and instrumenting API calls on Windows. It is distributed in source code form.
The reference implementation of the Linux FUSE (Filesystem in Userspace) interface
LuaJIT is a Just-In-Time (JIT) compiler for the Lua programming language.
the official Rust and C implementations of the BLAKE3 cryptographic hash function
MozJPEG reduces file sizes of JPEG images while retaining quality and compatibility with the vast majority of the world's deployed decoders. It's compatible with libjpeg API and ABI, and can be used as a drop-in replacement for libjpeg.
UTF-8 with C++ in a Portable Way
Efficient binary-decimal and decimal-binary conversion routines for IEEE doubles.
C macros for hash tables and more.