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Top 23 C++ HTTP Projects
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aria2
aria2 is a lightweight multi-protocol & multi-source, cross platform download utility operated in command-line. It supports HTTP/HTTPS, FTP, SFTP, BitTorrent and Metalink.
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Project mention: Show HN: PrinceJS – 19,200 req/s Bun framework in 2.8 kB (built by a 13yo) | news.ycombinator.com | 2025-11-17
i was initially confused how 19.2K rps is notable when Express typically benchmarks around 15K rps [1].
however, i think the author is benchmarking a route with an id params here, not a static route.
[1] https://github.com/uNetworking/uWebSockets/discussions/1415
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ZLMediaKit
WebRTC/RTSP/RTMP/HTTP/HLS/HTTP-FLV/WebSocket-FLV/HTTP-TS/HTTP-fMP4/WebSocket-TS/WebSocket-fMP4/GB28181/SRT/STUN/TURN server and client framework based on C++11
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drogon
Drogon: A C++14/17/20 based HTTP web application framework running on Linux/macOS/Unix/Windows
related - someone should take a stab at actually finishing this :) https://github.com/drogonframework/drogon/issues/988
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I came across this interesting rant the other day. https://github.com/uNetworking/uWebSockets.js/blob/master/mi...
It does make sense that the right way would be to fork every dependency you use and install from your fork reviewing and merging from upstream as needed. Would be a giant PITA though. :)
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Project mention: Came across the async framework userver 3.0 recently – they've moved to C++20 | news.ycombinator.com | 2026-05-28
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Restbed
Corvusoft's Restbed framework brings asynchronous RESTful functionality to C++ 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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RESTinio
Cross-platform, efficient, customizable, and robust asynchronous HTTP(S)/WebSocket server C++ library with the right balance between performance and ease of use
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Project mention: How I turned Zig into my favorite language to write network programs in | news.ycombinator.com | 2025-10-26
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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++ HTTP discussion
C++ HTTP related posts
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C++ Web Server on my custom hobby OS
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Doyensec – Info Leak in Squid Proxy
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Ask HN: Why does my Node.js multiplayer game lag at 500 players with low CPU?
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Uwebsockets.js
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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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Squid: Optimising Web Delivery
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A note from our sponsor - SaaSHub
www.saashub.com | 21 Jul 2026
Index
What are some of the best open-source HTTP projects in C++? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | aria2 | 41,452 |
| 2 | µWebSockets | 18,920 |
| 3 | ZLMediaKit | 17,304 |
| 4 | cpp-httplib | 16,674 |
| 5 | C++ Workflow | 14,395 |
| 6 | drogon | 14,087 |
| 7 | Apache Thrift | 10,938 |
| 8 | uWebSockets.js | 9,123 |
| 9 | cpr | 7,384 |
| 10 | Crow | 4,919 |
| 11 | Boost.Beast | 4,809 |
| 12 | Squid | 3,026 |
| 13 | userver | 2,926 |
| 14 | Restbed | 2,004 |
| 15 | CppServer | 1,642 |
| 16 | restclient-cpp | 1,612 |
| 17 | RESTinio | 1,301 |
| 18 | PhotonLibOS | 1,217 |
| 19 | wfrest | 1,003 |
| 20 | libhttpserver | 942 |
| 21 | UBoat | 921 |
| 22 | sshttp | 894 |
| 23 | kiwix-tools | 891 |
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