async-std VS smol

Compare async-std vs smol and see what are their differences.

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async-std smol
19 9
3,828 3,377
0.8% 2.0%
5.3 7.0
2 months ago about 1 month ago
Rust Rust
Apache License 2.0 Apache License 2.0
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

async-std

Posts with mentions or reviews of async-std. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-05-03.
  • Stabilizing async fn in traits in 2023 | Inside Rust Blog
    5 projects | /r/rust | 3 May 2023
    But maybe check out the discussion here https://github.com/async-rs/async-std/pull/631 or something (the blog post was linked on the end of it)
  • Anyone using io_uring?
    8 projects | /r/rust | 18 Aug 2022
    Have a look at these: https://github.com/async-rs/async-std/tree/main/examples
  • Any plans for built-in support of Vec2/Vec3/Vec4 in Rust?
    11 projects | /r/rust | 29 Jul 2022
    In fact, there are a lot of crates in Rust where in other programming languages, it would be included in the standard library. Examples are regex, random number generators, additional iterator methods, macros for other collections, num traits, loggers, HTTP libraries, error handling, async runtimes, serialization and deserialization, date and time, and many more.
  • 18 factors powering the Rust revolution, Part 2 of 3
    13 projects | dev.to | 10 Apr 2022
    Two major projects (non std lib but extremely commonly used) stand out in the area of async programming: Async std and Tokio - no doubt familiar to anyone that has turned an eye towards Rust for a second too long. Async architecture in general is likely very familiar to JavaScript programmers but in Rust there are some extra considerations (like ownership of the data that is thrown into an async function). Tokio is fast becoming a heavily supported and road tested async framework, with a thread scheduling runtime "baked in" that has learned from the history of Go, Erlang, and Java thread schedulers.
  • What are the side-effects of using different runtimes in the same codebase?
    2 projects | /r/rust | 21 Feb 2022
    Ah... https://github.com/tokio-rs/tokio and https://github.com/async-rs/async-std ?
  • Hey Rustaceans! Got an easy question? Ask here (51/2021)!
    7 projects | /r/rust | 21 Dec 2021
    async-std: Basically a Tokio alternative with a few different design decisions.
  • Why asynchronous Rust doesn't work
    3 projects | /r/programming | 13 Nov 2021
    Go's solution is for the scheduler to notice after a while when a goroutine has blocked execution and to shift goroutines waiting their turn to another thread. async-std pondered a similar approach with tasks, but it proved controversial and was never merged.
  • Building static Rust binaries for Linux
    6 projects | dev.to | 17 Oct 2021
    This indicates curl, zlib, openssl, and libnghttp2 as well as a bunch of WASM-related things are being dynamically linked into my executable. To resolve this, I looked at the build features exposed by surf and found that it selects the "curl_client" feature by default, which can be turned off and replaced with "h1-client-rustls" which uses an HTTP client backed by rustls and async-std and no dynamically linked libraries. Enabling this build feature removed all -sys dependencies from androidx-release-watcher, allowing me to build static executables of it.
  • Rust async is colored, and that’s not a big deal
    4 projects | /r/rust | 14 Mar 2021
    And also, the actual PR never got merged.
    4 projects | /r/rust | 14 Mar 2021
    Many people believe that based on the blog post about it, but the PR was actually never merged, and the approach was abandoned due to various issues.

smol

Posts with mentions or reviews of smol. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-09-25.

What are some alternatives?

When comparing async-std and smol you can also consider the following projects:

tokio - A runtime for writing reliable asynchronous applications with Rust. Provides I/O, networking, scheduling, timers, ...

actix-web - Actix Web is a powerful, pragmatic, and extremely fast web framework for Rust.

futures-rs - Zero-cost asynchronous programming in Rust

reqwest - An easy and powerful Rust HTTP Client

embassy - Modern embedded framework, using Rust and async.

async-std-hyper - How to run Hyper on async-std

bastion - Highly-available Distributed Fault-tolerant Runtime

hyper - An HTTP library for Rust

wasmer - 🚀 The leading Wasm Runtime supporting WASIX, WASI and Emscripten

async-tungstenite - Async binding for Tungstenite, the Lightweight stream-based WebSocket implementation