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Top CPP GitHub Repositories & Tools (2026)
Discover the most starred and trending open source tools tagged with #cpp.
Static reflection for enums (to string, from string, iteration) for modern C++, work with any enum type without any macro or boilerplate code
A C++ header-only HTTP/HTTPS server and client library
An open source re-implementation of RollerCoaster Tycoon 2 ๐ข
The set-and-forget LLM engine for Pascal and Volta: PXQ codec + kernels, auto-tuned per card. Ready-to-run PXQ models in MODELS.md; benchmarks vs llama.cpp in the README.
Open-source search database for full-text, vector, and hybrid search with real-time indexing and SQL.
Fยด - A flight software and embedded systems framework
cuDF - GPU DataFrame Library
static analysis of C/C++ code
A flexible, high-performance serving system for machine learning models
YDB is an open source Distributed SQL Database that combines high availability and scalability with strong consistency and ACID transactions
The Windows App SDK empowers all Windows desktop apps with modern Windows UI, APIs, and platform features, including back-compat support, shipped via NuGet.
jank is the native Clojure dialect with seamless C++ interop.
Production-ready C++ Asynchronous Framework with rich functionality
The most complete DDS - Proven: Plenty of success cases. Looking for commercial support? Contact info@eprosima.com
The C++ Standard Library for Parallelism and Concurrency
LLM speculative inference server for heterogeneous hardware & consumer GPUs
C/C++ WebRTC network library featuring Data Channels, Media Transport, and WebSockets
Fastest library to load data from DB to DataFrames in Rust and Python
The ripgrep of AI context: a zero-dependency C++23 CLI + MCP server for coding agents. Find what you want without reading the repo, then check you built what you meant โ blast radius, tests-to-run, quality deltas. Signatures at 74.7% fewer bytes than bodies; every guess labelled, every loss published. Paddle out with a map.