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Top 21 C++ WebSocket Projects
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Project mention: Swoole (Coroutine-based concurrency for PHP) v6 released | news.ycombinator.com | 2024-12-16
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ZLMediaKit
WebRTC/RTSP/RTMP/HTTP/HLS/HTTP-FLV/WebSocket-FLV/HTTP-TS/HTTP-fMP4/WebSocket-TS/WebSocket-fMP4/GB28181/SRT server and client framework based on C++11
Project mention: ZLMediaKit: Open-Source C++11 Framework for Real-Time Streaming Protocols | news.ycombinator.com | 2024-09-30 -
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Project mention: How I deployed my first project for my devops portfolio: Project Architecture | dev.to | 2025-07-19
This project (Github branch main) I built this app entirely in CPP and I used the CrowCpp framework to run it.
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libdatachannel
C/C++ WebRTC network library featuring Data Channels, Media Transport, and WebSockets
In this release I landed pacing for WebRTC. Before it could lose packets around keyframes (from bursty UDP).
You can see the code for it here https://github.com/paullouisageneau/libdatachannel/blob/mast...
If anyone is doing things with WebRTC broadcasting (or thinking of trying it out) would love to hear :)
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Restbed
Corvusoft's Restbed framework brings asynchronous RESTful functionality to C++14 applications.
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CppServer
Ultra fast and low latency asynchronous socket server & client C++ library with support TCP, SSL, UDP, HTTP, HTTPS, WebSocket protocols and 10K connections problem solution
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esp-rfid
ESP8266 RFID (RC522, PN532, Wiegand, RDM6300) Access Control system featuring WebSocket, JSON, NTP Client, Javascript, SPIFFS
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Project mention: My TV started playing a video in full screen by itself. What happened? | news.ycombinator.com | 2025-03-30
My dad's old Sanyo from early 90's did have brightness control buttons.
https://github.com/JPersson77/LGTVCompanion
I have a few extra buttons on my gayming keyboard that I pretty much never use, so I assigned three of them to a script that uses the above app to change brightness between 30/50/100.
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DiscordCoreAPI
A bot library for Discord, written in C++, and featuring explicit multithreading through the usage of custom, asynchronous C++ CoRoutines.
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malloy
A cross-platform C++23 library providing embeddable server & client components for HTTP and WebSocket. (by Tectu)
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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.
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++ WebSocket discussion
C++ WebSocket related posts
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Swoole (Coroutine-based concurrency for PHP) v6 released
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ZLMediaKit: Open-Source C++11 Framework for Real-Time Streaming Protocols
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Zlmediakit – media streaming that has it all
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OBS Crashing EVERY Time I Attempt to Swap SCENE COLLECTIONS.
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LLVM 16.0.0 Release
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error during Arduino compiling for esp8266 for Roller Blind project
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Which WebSocket library is the best/fastest for an ESP32 programmed in Arduino IDE?
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A note from our sponsor - Sevalla
sevalla.com | 1 Sep 2025
Index
What are some of the best open-source WebSocket projects in C++? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | Swoole | 18,730 |
| 2 | ZLMediaKit | 15,653 |
| 3 | Boost.Beast | 4,617 |
| 4 | obs-websocket | 4,141 |
| 5 | Crow | 4,132 |
| 6 | libdatachannel | 2,176 |
| 7 | arduinoWebSockets | 1,978 |
| 8 | Restbed | 1,974 |
| 9 | CppServer | 1,538 |
| 10 | esp-rfid | 1,442 |
| 11 | TreeFrog Framework | 1,347 |
| 12 | DPP | 1,235 |
| 13 | LGTVCompanion | 1,199 |
| 14 | x-tools | 878 |
| 15 | datachannel-wasm | 172 |
| 16 | DiscordCoreAPI | 158 |
| 17 | malloy | 84 |
| 18 | disorient | 40 |
| 19 | WebSocket | 31 |
| 20 | Mach3Controller | 21 |
| 21 | flutter_webrtc_websocket | 15 |
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