LLM inference in C/C++
Tensors and Dynamic neural networks in Python with strong GPU acceleration
Open Source Computer Vision Library
Google's language-neutral, platform-neutral, extensible mechanism for serializing structured data.
The Python programming language
An OCR Engine that was developed at HP Labs between 1985 and 1995... and now at Google.
Fast UTF-8 validation with Range algorithm (NEON+SSE4+AVX2)
JSON for Modern C++
A massively spiffy yet delicately unobtrusive compression 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.
A library to decode, encode, transcode, mux, demux, stream, filter and play pretty much anything that humans and machines have created.
Host tool bin2c for FFmpeg build
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, MQTTS, POP3, POP3S, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET, TFTP, WS and WSS. libcurl offers a myriad of powerful features
Port of OpenAI's Whisper model in C/C++
gRPC is a modern, open source, high-performance remote procedure call (RPC) framework that can run anywhere. gRPC enables client and server applications to communicate transparently, and simplifies the building of connected systems.
{fmt} is an open-source formatting library providing a fast and safe alternative to C stdio and C++ iostreams.
GoogleTest - Google Testing and Mocking Framework
The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.
Faiss is a library for efficient similarity search and clustering of dense vectors.
stb single-file public domain libraries for C/C++
LevelDB is a fast key-value storage library written at Google that provides an ordered mapping from string keys to string values.
Zstandard - Fast real-time compression algorithm
Very fast, header-only/compiled, C++ logging library.
A simple and easy-to-use library to enjoy videogames programming
An open-source C++ library developed and used at Facebook. The library is UNSTABLE on Windows
Qt Base (Core, Gui, Widgets, Network, ...)
A library that provides an embeddable, persistent key-value store for fast storage
libuv is a multi-platform support library with a focus on asynchronous I/O.
FlatBuffers is a cross platform serialization library architected for maximum memory efficiency. It allows you to directly access serialized data without parsing/unpacking it first, while still having great forwards/backwards compatibility.
Qt Base provides the basic non-GUI functionality required by all Qt applications.
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
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.
ncnn is a high-performance neural network inference framework optimized for the mobile platform
Open standard for machine learning interoperability
ONNX Runtime: cross-platform, high performance ML inferencing and training accelerator
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)
A fast JSON parser/generator for C++ with both SAX/DOM style API <http://rapidjson.org/>
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.
Extra CMake Modules (ECM), extra modules and scripts for CMake
Simple, secure & standards compliant web I/O for the most demanding of applications
Lossless compression algorithm, providing compression speed at 400 MB/s per core.
ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.
Yoga is a cross-platform layout engine which implements Flexbox
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.
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.
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
C++ template library for linear algebra: matrices, vectors, numerical solvers, and related algorithms.
Provides a set of APIs that can be used to host .NET Core (dotnet)
Google's common Java, C++ and JavaScript library for parsing, formatting, and validating international phone numbers.
High performance UI layout library in C
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 single file C++11 header-only HTTP/HTTPS server and client library
GLFW is a free, Open Source, multi-platform library for OpenGL, OpenGL ES and Vulkan application development. It provides a simple, platform-independent API for creating windows, contexts and surfaces, reading input, handling events, etc.
The systemd System and Service Manager
:zap: KCP - A Fast and Reliable ARQ Protocol
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.
MNN is a blazing fast, lightweight deep learning framework, battle-tested by business-critical use cases in Alibaba
Tensor library for machine learning
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.
Portable, general-purpose utility library.
A modern, portable, easy to use crypto library.
Multi-Joint dynamics with Contact. A general purpose physics simulator.
The official Open-Asset-Importer-Library Repository. Loads 40+ 3D-file-formats into one unified and clean data structure.
C++ Parallel Computing and Asynchronous Networking Engine
C++ Parallel Computing and Asynchronous Networking Engine (Windows version)
Bullet Physics SDK: real-time collision detection and multi-physics simulation for VR, games, visual effects, robotics, machine learning etc.
OpenGL Mathematics (GLM)
libpng is a library implementing an interface for reading and writing PNG (Portable Network Graphics) format files
Modern C++ toolkit containing machine learning algorithms and tools for creating complex software in C++
mimalloc is a compact general purpose allocator with excellent performance.
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.
An event notification library
Approximate Nearest Neighbors in C++/Python optimized for memory usage and loading/saving to disk
Drogon: A C++14/17/20 based HTTP web application framework running on Linux/macOS/Unix/Windows
Tiny cross-platform webview library for C/C++. Uses WebKit (GTK/Cocoa) and Edge WebView2 (Windows).
A fast multi-producer, multi-consumer lock-free concurrent queue for C++11
Ultralightweight JSON parser in ANSI C
FreeRDP is a free remote desktop protocol library and clients
Ninja is a small build system with a focus on speed.
Cap'n Proto serialization/RPC system - core tools and C++ library
Gaming meets modern C++ - a fast and reliable entity component system (ECS) and much more
MySQL Server, the world's most popular open source database, and MySQL Cluster, a real-time, open source transactional database.
The ZeroMQ lightweight messaging kernel is a library which extends the standard socket interfaces with features traditionally provided by specialised messaging middleware products
Embedded web server, with TCP/IP network stack, MQTT and Websocket
Z3 is a theorem prover from Microsoft Research
Perceptual JPEG encoder
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.
🌱Light and powerful C++ web framework for highly scalable and resource-efficient web application. It's zero-dependency and easy-portable.
Simple and fast multimedia library
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.
A collection of tools and utilities that come with the Qt framework to assist developers in the creation, management, and deployment of Qt applications.
C++ implementation of the Google logging module
Extremely fast non-cryptographic hash algorithm
A General-purpose Task-parallel Programming System using Modern C++
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
libvips is a demand-driven, horizontally threaded image processing library.
A library to render fonts.
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 and Death Stranding 2.
A massively spiffy yet delicately unobtrusive compression library.
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.
Point Cloud Library (PCL) is open source library for 2D/3D image and point cloud processing.
This is a minimal state immediate mode graphical user interface toolkit written in ANSI C and licensed under public domain
A cross-platform library to access USB devices
X.org macros utilities.
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
jemalloc is a general purpose malloc(3) implementation that emphasizes fragmentation avoidance and scalable concurrency support
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.
Skia is an open source 2D graphics library which provides common APIs that work across a variety of hardware and software platforms.
Simple and portable (but not inflexible) GUI library in C that uses the native GUI technologies of each platform it supports.
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.
:computer: C++ Functional Terminal User Interface. :heart:
Libxml2 is the XML C parser and toolkit developed for the Gnome project (but usable outside of the Gnome platform).
A cross-platform, linkable library implementation of Git that you can use in your application.
CUDA Templates and Python DSLs for High-Performance Linear Algebra
A library to benchmark code snippets, similar to unit tests.
An open source C++ engine for simulating rigid bodies in 2D
Minimal cross-platform standalone C headers
:herb: Fast streaming XML parser written in C99 with >90% test coverage; moved from SourceForge to GitHub
HarfBuzz OpenType text shaping engine
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.
A project for conversions between Traditional Chinese, Simplified Chinese and Japanese Kanji (Shinjitai)
Reliable & unreliable messages over UDP. Robust message fragmentation & reassembly. P2P networking / NAT traversal. Encryption.
TinyXML2 is a simple, small, efficient, C++ XML parser that can be easily integrated into other programs.
The pattern matching swiss knife
oneAPI Threading Building Blocks (oneTBB)
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.
Light-weight, simple and fast XML parser for C++ with XPath support
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.
A cross-platform protocol library to communicate with iOS devices
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.
Intel® RealSense™ SDK 2.0 is a cross-platform library for Intel® RealSense™ depth cameras (D400 series and the SR300).
Unicorn CPU emulator framework (ARM, AArch64, M68K, Mips, Sparc, PowerPC, RiscV, S390x, TriCore, X86)
A high-performance multi-threaded malloc() implementation, plus some performance analysis tools.
ChakraCore is an open source Javascript engine with a C API.
C++ Requests is a simple wrapper around libcurl inspired by the excellent Python Requests project.
Torch's TH library
Cross-platform library for building Telegram clients
Mesh optimization library that makes meshes smaller and faster to render
A fast compressor/decompressor.
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
Qt Declarative (Quick 2)
SQLite is a software library that implements a self-contained, serverless, zero-configuration, transactional SQL database engine.
X Window System unified protocol definitions
Efficient reliable UDP unicast, UDP multicast, and IPC message transport
Microsoft implementation of the Guidelines Support Library
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.
A fast entity component system (ECS) for C & C++
iconv() text conversion.
yaml-cpp is a YAML parser and emitter in C++ matching the YAML 1.2 spec.
A collection of C++ HTTP libraries including an easy to use HTTP server.
Static reflection for enums (to string, from string, iteration) for modern C++, work with any enum type without any macro or boilerplate code
The X Window System is a network-transparent window system that was designed at MIT.
The WebAssembly Binary Toolkit
The Wren Programming Language. Wren is a small, fast, class-based concurrent scripting language.
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.
Halide is a programming language designed to make it easier to write high-performance image and array processing code on modern machines.
Industry-standard navigation-mesh toolset for games
OpenBLAS is an optimized BLAS library based on GotoBLAS2 1.13 BSD version.
The Quite OK Image Format for fast, lossless image compression
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 smallest header-only GUI library (4 KLOC) for all platforms.
The QuantLib C++ library
SQLCipher extends the SQLite database library to add security enhancements that make it more suitable for encrypted local data storage.
Jsonnet - The data templating language
Libhv is a C/C++ network library similar to libevent/libuv.
The fastest feature-rich C++11/14/17/20 single-header testing framework
Open Graphics Library (OpenGL)[3][4][5] is a cross-language, cross-platform application programming interface (API) for rendering 2D and 3D vector graphics.
Universal Scene Description (USD) is an efficient, scalable system for authoring, reading, and streaming time-sampled scene description for interchange between graphics applications.
The gflags package contains a C++ library that implements commandline flags processing. It includes built-in support for standard types such as string and the ability to define flags in the source file in which they are used. Online documentation available at:
Audio playback and capture library written in C, in a single source file
ClamAV is an open-source anti-virus toolkit.
Higher level programming in C
Compression library with an API similar to that of zlib.
GDAL is an open source MIT licensed translator library for raster and vector geospatial data formats.
Hiredis is a minimalistic C client library for the Redis database.
The official SuiteSparse library: a suite of sparse matrix algorithms authored or co-authored by Tim Davis, Texas A&M University.
A Hexagonal Hierarchical Geospatial Indexing System
http request/response parser for c
High-quality QR Code generator library in Java, TypeScript/JavaScript, Python, Rust, C++, C.
The Computational Geometry Algorithms Library (CGAL) is a C++ library that aims to provide easy access to efficient and reliable algorithms in computational geometry.
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.
Advanced 2D Plotting for Dear ImGui
open Multiple View Geometry library. Basis for 3D computer vision and Structure from Motion.
Duktape - embeddable Javascript engine with a focus on portability and compact footprint
Production-grade client-side tracing, profiling, and analysis for complex software systems.
WebP codec: library to encode and decode images in WebP format
C99 implementation of the TLS/SSL protocols.
the official Rust and C implementations of the BLAKE3 cryptographic hash function
Box3D is a 3D physics engine for games
Detours is a software package for monitoring and instrumenting API calls on Windows. It is distributed in source code form.
Mature and widely used Unicode and localization library.
A simple high-performance implementation of several "scalability protocols".
A large scale non-linear optimization library
A small code-size Protocol Buffers implementation in ANSI C.
Lightweight and modular C++11 graphics middleware for games and data visualization
Performance-portable, length-agnostic SIMD with runtime dispatch
A library that supports the manipulation of TIFF image files
OpenH264 is a codec library which supports H.264 encoding and decoding. It is suitable for use in real time applications such as WebRTC.
The reference implementation of the Linux FUSE (Filesystem in Userspace) interface