C UDP

Open-source C projects categorized as UDP

Top 23 C UDP Projects

  1. KCP

    :zap: KCP - A Fast and Reliable ARQ Protocol

  2. InfluxDB

    InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.

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  3. Mongoose

    Embedded web server, with TCP/IP network stack, MQTT and Websocket (by cesanta)

    Project mention: 13 Github Projects that Will Supercharge Your Development Journey in 2025 🚀 | dev.to | 2025-03-02

    Stars: 11435 Author: cesanta Star the mongoose repository⭐

  4. dperf

    dperf is a 100Gbps network load tester.

  5. yojimbo

    A network library for client/server games written in C++

  6. netcode.io

    Secure client/server connections over UDP

  7. lsquic

    LiteSpeed QUIC and HTTP/3 Library

  8. ngtcp2

    ngtcp2 project is an effort to implement IETF QUIC protocol

    Project mention: HTTP3之QUIC协议中的Connection Migration | dev.to | 2024-05-29

    可以参考ngtcp2的example(https://github.com/ngtcp2/ngtcp2/tree/main/examples), 如果想看简单的,可以参考我的http3 client

  9. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

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  10. DDOS-RootSec

    Explore RootSec's DDOS Archive, featuring top-tier scanners, powerful botnets (Mirai & QBot) and other variants, high-impact exploits, advanced methods, and efficient sniffers. Ideal for cybersecurity professionals and researchers.

  11. ENet-CSharp

    Reliable UDP networking library

  12. reliable

    Packet acknowledgement system for UDP

  13. nbnet

    single header C(99) library to implement client-server network code for games

  14. Orca-c

    Live Programming Environment(C Port)

  15. libjuice

    JUICE is a UDP Interactive Connectivity Establishment library

  16. hev-socks5-tproxy

    A socks5 transparent proxy (IPv4/IPv6/TCP/UDP)

    Project mention: How to set up TCP/UDP transparent proxy with iptables | dev.to | 2024-10-02

    As far as I know, there are two transparent proxy softwares that can make SOCKS5 proxy available as transparent proxy supporting TCP and UDP: redsocks (forked from old redsocks, which doesn't support TCP transparent proxy) and hev-socks5-tproxy. This is an example config file for hev-socks5-tproxy to host TCP transparent proxy on port 22222 and UDP transparent proxy on port 22224. Debug output is enabled.

  17. AMP-Research

    Research on UDP/TCP amplification vectors, payloads and mitigations against their use in DDoS Attacks

  18. ngx_healthcheck_module

    nginx module for upstream servers health check. support stream and http upstream. 该模块可以为Nginx提供主动式后端服务器健康检查的功能(同时支持四层和七层后端服务器的健康检测)

  19. fi6s

    IPv6 network scanner designed to be fast

  20. DTLS-Examples

    Examples for DTLS via SCTP and UDP using OpenSSL

  21. ENet-CSharp

    A improved fork of ENet, a tried and true networking library. C, C++, C# compatible. (by SoftwareGuy)

  22. sharedgl

    An OpenGL implementation enabling 3D acceleration for Windows and Linux guests in QEMU/KVM

  23. kflowd

    Kernel-based Process Monitoring on Linux Endpoints for File System, TCP and UDP Networking Events and optionally DNS, HTTP and SYSLOG Application Messages via eBPF Subsystem

    Project mention: Kernel-based process monitoring for FS, TCP and UDP networking events | news.ycombinator.com | 2024-06-29
  24. fnet

    fnet - FILE* over your socks. Easily create and handle your network sockets.

    Project mention: Fnet – FILE* over your socks. Easily create and handle your network sockets | news.ycombinator.com | 2025-03-12
  25. teonet-c

    Teonet v5 C library and examples

  26. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    SaaSHub logo
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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C UDP related posts

  • How to set up TCP/UDP transparent proxy with iptables

    5 projects | dev.to | 2 Oct 2024
  • An affordable, portable and focused device for music, writing and coding

    4 projects | news.ycombinator.com | 31 Jul 2024
  • KCP – A TCP alternative optimized for latency

    1 project | news.ycombinator.com | 28 Mar 2024
  • Networking and multiplayer

    1 project | /r/raylib | 28 Apr 2023
  • P2P connectivity using ICE (STUN/TURN)

    1 project | /r/gamedev | 20 Mar 2023
  • DPVS uses dperf for performance testing

    2 projects | dev.to | 27 Jan 2023
  • How to set up an echo server over DTLS 1.2

    1 project | /r/AskComputerScience | 12 Nov 2022
  • A note from our sponsor - InfluxDB
    www.influxdata.com | 12 May 2025
    InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now. Learn more →

Index

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

# Project Stars
1 KCP 16,034
2 Mongoose 11,658
3 dperf 5,322
4 yojimbo 2,568
5 netcode.io 2,484
6 lsquic 1,640
7 ngtcp2 1,253
8 DDOS-RootSec 862
9 ENet-CSharp 842
10 reliable 613
11 nbnet 495
12 Orca-c 491
13 libjuice 478
14 hev-socks5-tproxy 467
15 AMP-Research 369
16 ngx_healthcheck_module 275
17 fi6s 174
18 DTLS-Examples 143
19 ENet-CSharp 91
20 sharedgl 78
21 kflowd 62
22 fnet 33
23 teonet-c 2

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