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Top 21 C++ TCP Projects
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udp2raw
A Tunnel which Turns UDP Traffic into Encrypted UDP/FakeTCP/ICMP Traffic by using Raw Socket,helps you Bypass UDP FireWalls(or Unstable UDP Environment)
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Stream
Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.
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SerialTest
Data transceiver(monitor)/realtime plotter/shortcut/file transceiver over serial port/Bluetooth/network on Windows/Linux/Android/macOS | 跨平台串口/蓝牙/网络调试助手，带数据收发/实时绘图/快捷发送/文件收发面板，可在PC和Android设备上使用
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x-tools
Qt-SerialPort-HID-BLE-UDP-TCP-WebSocket-Modbus-CANBus-MQTT debugging tool, which support custom lua, javascript, chart view and data transmitting...
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TOSDataBridge
A collection of resources for pulling real-time streaming data off of TDAmeritrade's ThinkOrSwim(TOS) platform; providing C, C++, Java and Python interfaces.
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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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ctsTraffic
ctsTraffic is a highly scalable client/server networking tool giving detailed performance and reliability analytics
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DatagramTunneler
Simple C++ cross-platform client/server app forwarding UDP datagrams through a TCP connection.
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turbo-beep
Peer to peer file sharing and messaging between different networks including server acting as a mediator (TCP hole punching).
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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 -
hook
Open source (free to use) high-performance network communications library including Http server/client support. Header only and designed using the latest C++ standards to provide for a full featured and modern API. Supporting for a wide range of platforms (including embedded, IoT & MCUs). (by koobika)
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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).
C++ TCP discussion
C++ TCP related posts
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Hosting on a Ubuntu Server
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Muonbase Document Database
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(AIO) i2p instant messenger ?
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Idec FC6A read 1 byte issues
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QSAK – a Swiss Army Knife debugging tool based on Qt
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How do I port forward with ngrok so my local server appears on server list?
- A note from our sponsor - Stream getstream.io | 23 Dec 2025
Index
What are some of the best open-source TCP projects in C++? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | udp2raw | 8,217 |
| 2 | SerialTest | 1,483 |
| 3 | x-tools | 917 |
| 4 | LAN-Share | 690 |
| 5 | eModbus | 480 |
| 6 | TOSDataBridge | 332 |
| 7 | modbuspp | 285 |
| 8 | ctsTraffic | 279 |
| 9 | netLink | 221 |
| 10 | DatagramTunneler | 176 |
| 11 | SoapyRemote | 139 |
| 12 | QTcpSocket | 139 |
| 13 | psc | 126 |
| 14 | tcpview | 87 |
| 15 | MaxOS | 52 |
| 16 | tcp_pubsub | 47 |
| 17 | sockpuppet | 17 |
| 18 | turbo-beep | 13 |
| 19 | std_net | 11 |
| 20 | hook | 8 |
| 21 | Muonbase | 3 |
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