asio ☆

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Description:
Cross-platform C++ Library for asynchronous programming

Type: Formula | Latest Version: 1.36.0@0 | Tracked Since: Dec 17, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: c++ networking asynchronous library cross-platform

Install: brew install asio

About:
Asio is a C++ library for network and low-level I/O programming that provides developers with consistent asynchronous model using modern C++. It offers cross-platform support for socket operations, timers, and custom asynchronous services. The library forms the foundation for many high-performance networking applications and is the basis for the C++20 networking standard.

Key Features:

Cross-platform asynchronous I/O and networking
Proactor and reactor design pattern implementations
SSL/TLS support for secure communications
Highly scalable with support for thousands of concurrent connections
Header-only library with no external dependencies beyond system libraries

Use Cases:

Building high-performance network servers and clients
Developing asynchronous applications with non-blocking I/O
Implementing custom protocol handlers and network services

Alternatives:

libevent – C-based event loop library, less type-safe than Asio's C++ approach
Boost.Asio – Asio originated from Boost; standalone version removes Boost dependency

License: BSL-1.0

Dependencies: openssl@3

Bottles available for: arm64_tahoe, arm64_sequoia, arm64_sonoma, arm64_ventura, sonoma, ventura, arm64_linux, x86_64_linux

Version History

Detected	Version	Rev	Change	Commit
Sep 10, 2025 9:11am		0	VERSION_BUMP	0d9675b9
Apr 17, 2024 8:34pm		0	VERSION_BUMP	231d471e