C++ asynchronous-programming

Open-source C++ projects categorized as asynchronous-programming
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Top 11 C++ asynchronous-programming Projects

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  1. drogon

    Drogon: A C++14/17/20 based HTTP web application framework running on Linux/macOS/Unix/Windows

    Project mention: C++ Web Server on my custom hobby OS | news.ycombinator.com | 2025-11-28

    related - someone should take a stab at actually finishing this :) https://github.com/drogonframework/drogon/issues/988

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  3. cppcoro

    A library of C++ coroutine abstractions for the coroutines TS

  4. concurrencpp

    Modern concurrency for C++. Tasks, executors, timers and C++20 coroutines to rule them all

  5. trantor

    a non-blocking I/O tcp network lib based on c++14/17

  6. asio-grpc

    Asynchronous gRPC with Asio/unified executors

    Project mention: Asio-gRPC: Asynchronous gRPC with Asio/unified executors | news.ycombinator.com | 2025-08-30

  7. corral

    Lightweight structured concurrency for C++20

  8. nodepp

    A runtime for writing reliable asynchronous applications with C++. Provides I/O, networking, scheduling, timers, ...

    Project mention: Show HN: Nodepp – A C++ runtime for scripting at bare-metal speed | news.ycombinator.com | 2026-03-04

  9. kelcoro

    C++20 coroutine library

  10. Lazy

    Light-weight header-only library for parallel function calls and continuations in C++ based on Eric Niebler's talk at CppCon 2019.

  11. zab

    C++20 liburing backed coroutine executor and event loop framework.

  12. atrip

    High Performance library for the CCSD(T) algorithm in quantum chemistry

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++ asynchronous-programming related posts

  • Blazeio vs. FastAPI vs. Robyn: Benchmarking Reveals 86x Performance Difference

    2 projects | news.ycombinator.com | 31 Oct 2025

  • Struggle with C++ 20 Coroutines

    2 projects | /r/cpp_questions | 13 May 2023

  • Does C++23 have a coroutine task promise type?

    1 project | /r/cpp_questions | 9 Mar 2023

  • Sane coroutine imitation with macros; copyable, serializable, and with reflection

    4 projects | /r/cpp | 22 Jan 2023

  • Is Tokio::sync::Mutex lock-free?

    1 project | /r/rust | 28 Nov 2022

  • My experience with C++ 20 coroutines

    7 projects | /r/cpp | 1 Aug 2022

  • My thoughts and dreams about a standard user-space I/O scheduler

    4 projects | /r/cpp | 28 Apr 2022
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    www.saashub.com | 6 Jun 2026
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Index

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

# Project Stars
1 drogon 13,951
2 cppcoro 3,829
3 concurrencpp 2,751
4 trantor 494
5 asio-grpc 466
6 corral 257
7 nodepp 195
8 kelcoro 142
9 Lazy 111
10 zab 65
11 atrip 4

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