Top 5 C Asynchronou Projects

libuv

75 23,219 9.1 C

Cross-platform asynchronous I/O

Project mention: Epoll: The API that powers the modern internet (2022) | news.ycombinator.com | 2024-01-11

nmap

26 9,228 9.1 C

Nmap - the Network Mapper. Github mirror of official SVN repository.

Project mention: NMAP-formatter: convert NMAP results to HTML, CSV, JSON, graphviz (dot), SQLite | news.ycombinator.com | 2024-01-26

https://github.com/nmap/nmap/issues/635
This looks like a reasonable mitigation for the lack of native JSON output.

WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
nanomq

2 1,358 9.9 C

An ultra-lightweight and blazing-fast Messaging broker/bus for IoT edge & SDV

Project mention: Lightweight and fast AMQP (0-9-1) server | news.ycombinator.com | 2024-04-07

Slightly OT:
Are ZeroMQ and NanoMQ still widely used (and recommended)?
https://github.com/zeromq/libzmq
https://github.com/nanomq/nanomq

swow

4 1,120 8.3 C

Coroutine-based cross-platform concurrent I/O engine.
LuaRT

5 153 9.2 C

Open source Windows programming framework for Lua
InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

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).