Vert.x is a tool-kit for building reactive applications on the JVM

🚀 gnet is a high-performance, lightweight, non-blocking, event-driven networking framework written in pure Go.

Event-driven network application framework for high performance protocol servers & clients, non-blocking.

Metal I/O library for Rust.

🤖 Real-time type-ahead completion for Zsh. Asynchronous find-as-you-type autocompletion.

Lightweight library for web server applications in Swift on macOS and Linux powered by coroutines.

Coroutines, structured concurrency and CSP for Swift on macOS and Linux.

📚 PHP Standard Library - a modern, consistent, centralized, well-typed, non-blocking set of APIs for PHP programmers

Asynchronous parallel SSH client library.

high performance dotnet core socket tcp communication components, support TLS, HTTP, HTTPS, WebSocket, RPC, Redis protocols, custom protocols and 1M connections problem solution

Fast and easy-to-use event-driven network library.

Non-blocking external commands in Go with streaming output

High performance reactive SQL Client written in Java

R2DBC MySQL Implementation

Reduce CPU usage by non-blocking async loop and psychologically speed up in JavaScript

🔌 Non-blocking TCP socket layer, with event-driven server and client.

A promise library & concurrency toolkit for Clojure and ClojureScript.

A tokio-based modbus library

A non-blocking stream abstraction for PHP based on Amp.

Non-blocking library for delaying function calls