C++ Network programming

Open-source C++ projects categorized as Network programming
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Top 7 C++ Network programming Projects

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Network programming

  1. C++ Middleware Writer

    The repo contains library code to support messaging and serialization. There are also two programs in the repo that are needed to use the CMW.

  2. SaaSHub

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  3. malloy

    A cross-platform C++23 library providing embeddable server & client components for HTTP and WebSocket. (by Tectu)

  4. qb

    Modern C++17 actor-based framework for building high-performance concurrent and distributed systems. Features asynchronous I/O, lock-free messaging, cross-platform support (Linux/macOS/Windows), and multi-core scaling. Perfect for real-time applications, microservices, and network servers. (by isndev)

  5. netpanzer

    NetPanzer is an open source 2d MMO warfare game designed for fast action combat. Join us on Discord: https://discord.gg/kCAB2CMswd

  6. std_net

    std_net.h` is a zero-dependency, header-only C/C++ networking library for TCP sockets. It abstracts cross-platform complexities (Windows/Linux/macOS/Android/FreeBSD) into a unified API for building clients/servers. Features include IPv4/IPv6 support (Happy Eyeballs), blocking/non-blocking I/O, timeouts, and RAII wrappers. MIT licensed.

    Project mention: Show HN: Std_net.h – Single-file cross-platform TCP networking (C/C++) | news.ycombinator.com | 2025-09-09

  7. BareMetalNIC

    BareMetalNIC is a zero-abstraction, memory-mapped NIC driver framework delivering 20–50ns packet latency by eliminating all software indirection between application and hardware. Designed for HFT, market data ingestion, and deterministic networking workloads.

    Project mention: Exploring sub-50ns NIC receive paths via userspace MMIO | news.ycombinator.com | 2025-12-16

  8. BrilliantNetwork

    A C++20 header only library providing networking abstractions based on asio

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

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Index

What are some of the best open-source Network programming projects in C++? This list will help you:

# Project Stars
1 C++ Middleware Writer 90
2 malloy 84
3 qb 70
4 netpanzer 23
5 std_net 11
6 BareMetalNIC 7
7 BrilliantNetwork 3

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