async-std/docs/src/overview/async-std.md

Welcome to async-std

async-std, along with its supporting libraries, is a library making your life in async programming easier. It provides fundamental implementations for downstream libraries and applications alike. The name reflects the approach of this library: it is as closely modeled to the Rust main standard library as possible, replacing all components by async counterparts.

async-std provides an interface to all important primitives: filesystem operations, network operations and concurrency basics like timers. It also exposes a task in a model similar to the thread module found in the Rust standard lib. But it does not only include I/O primitives, but also async/await compatible versions of primitives like Mutex.