A C++11 header-only single file port of Flatbush
Library for reading and writing streaming archives
A small, fast, and embeddable programming language based on Lua with a gradual type system.
cuDNN Frontend is NVIDIA's modern, open-source entry point to the cuDNN library and a growing collection of high-performance open-source kernels.
A few classes for extremely fast json parsing/serializing in modern C++. Possibly the fastest json parser in C++. Possibly the fastest json serializer in C++.
The library is a simplified implementation of the Interactive Connectivity Establishment (ICE) protocol in C for POSIX platforms (including Linux and Apple macOS) and Microsoft Windows.
qpdf: A content-preserving PDF document transformer
World Coordinate System (WCS) (Library)
The most popular spellchecking library.
Image metadata library and tools
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.
Reference library for ICS (Image Cytometry Standard), an open standard for writing images of any dimensionality and data type to file, together with associated information regarding the recording equipment or recorded subject.
FreeRDP is a free remote desktop protocol library and clients
One of the fastest JSON libraries in the world. Glaze reads and writes from C++ memory, simplifying interfaces and offering incredible performance.
This C++ header-only library enables the use of C++ standard iostreams to access ZLib-compressed streams.
fcfTest is a lightweight header-only cpp (>= C++11) unit testing framework. Unittest library for TDD. Modern. Zero-dependency. Benchmarking. Logging.
A fast & densely stored hashmap and hashset
libvips is a demand-driven, horizontally threaded image processing library.
The wolfSSL library is a small, fast, portable implementation of TLS/SSL for embedded devices to the cloud. wolfSSL supports up to TLS 1.3 and DTLS 1.3! Update to wolfSSL 5.9.1 for the latest CVE fixes.
libdatachannel is a standalone implementation of WebRTC Data Channels, WebRTC Media Transport, and WebSockets in C++17 with C bindings for POSIX platforms (including GNU/Linux, Android, and Apple macOS) and Microsoft Windows.
Guaranteed compile-time string literal obfuscation header-only library for C++14.
Mesa - The 3D Graphics Library
Cross-platform C library for reading values from and writing values to .xlsx files
Lightweight Communications and Marshalling (LCM)
Various header libraries mostly future std lib, replacements for(e.g. visit), or some misc
The official Open-Asset-Importer-Library Repository. Loads 40+ 3D-file-formats into one unified and clean data structure.
Qt 3D provides functionality for near-realtime simulation systems with support for 2D and 3D rendering in both Qt C++ and Qt Quick applications.
Geometry library for topological robustness.
Client library for accessing NFS shares over a network
a clean C library for processing UTF-8 Unicode data
C++23 client for Kalshi's Predictions API. Created from Kalshi's OpenAPI and AsyncAPI specs, it covers every REST operation and WebSocket channel. The WebSocket client reconnects and resubscribes. Optional transports add retries and rate limiting.
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.
Perhaps the fastest JSON deserializer/serializer posssible or at least close to it.
A fast, compressed, persistent binary data store library for C.
A complete RTSP server application
Basis Universal is a supercompressed GPU texture and video compression format that outputs a highly compressed intermediate file format (.basis) that can be quickly transcoded to a wide variety of GPU texture compression formats.
Mesh optimization library that makes meshes smaller and faster to render
A C++ platform to perform parallel computations of optimization tasks (global and local) via the asynchronous generalized island model.
An easy to customize, strong type library with built in support for unit-like behavior
AWS SDK for C++
Pistache is a modern and elegant HTTP and REST framework for C++. It is entirely written in pure-C++17 and provides a clear and pleasant API
C++ implementation of the Python Numpy library
Open-source implementation of JPEG2000 Part-15 (or JPH or HTJ2K)
A high-performance, cross-platform header-only logging library for C++20 using a multi-producer, multi-consumer ring buffer with multi-sink support and log rotation capabilities
ECMWF GRIB, BUFR and GTS decoding and encoding library and tools
An efficient feature complete C++ BitTorrent implementation
OpenTelemetry is a collection of tools, APIs, and SDKs.
nanoflann is a C++11 header-only library for building KD-Trees of datasets with different topologies: R2, R3 (point clouds), SO(2) and SO(3) (2D and 3D rotation groups).
Access to the windowing system
A cross-platform application and UI framework.