async-std VS reqwest

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

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async-std reqwest
19 57
3,828 9,042
0.8% -
5.3 8.7
2 months ago 5 days 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.


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 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:
  • 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 | | 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... and ?
  • 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 | | 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.


Posts with mentions or reviews of reqwest. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-02-18.
  • The Linux Kernel Prepares for Rust 1.77 Upgrade
    9 projects | | 18 Feb 2024
    > If you are equally picky and constrain yourself to parts of the ecosystem which care about binary size, you still have more options and can avoid size issues.

    What's an example of this for, say, libcurl? On my system it has a tiny number of recursive dependencies, around a dozen. [0] Furthermore if I want to write a C program that uses libcurl I have to download zero bytes of data ... because it's a shared library that is already installed on my system, since so many programs already use it.

    I don't really know the appropriate comparison for Rust. reqwest seems roughly comparable, but it's an HTTP client library, and not a general purpose network client like curl. Obviously curl can do a lot more. Even the list of direct dependencies for reqwest is quite long [1], and it's built on top of another http library [2] that has its own long list of dependencies, a list that includes tokio, no small library itself.

    In terms of final binary size, the installed size of the curl package on my system, which includes both the command line tool and development dependencies for libcurl, is 1875.03 KiB.

    [0] I'm excluding the dependency on the ca-certificates package, since this only provides the certificate chain for TLS and lots of programs rely on it.



  • What We Need Instead of "Web Components"
    8 projects | | 22 Dec 2023
  • ReductStore 1.6.0 has been released with new license and client SDK for Rust
    3 projects | | 15 Aug 2023
    ReductStore was rewritten from C++ to Rust a few months ago. We are delighted to be part of the Rust community and have taken a new step towards Rust with the Client SDK. The SDK is powered by reqwest and enables asynchronous integration of the database into Rust applications:
  • Rust dependency woes
    2 projects | /r/rust | 20 Jun 2023
    From what I could turn up when googling the specific error lines (here), it has something to do with the crate mio not having support for WASM, but I don’t understand what’s being said on this thread.
  • Authentication system using rust (actix-web) and sveltekit - Automated testing
    3 projects | | 6 May 2023
    When starting out, we made some design decisions at the backend. The decision will allow us to independently test the service without interfering with the real application using a term called integration testing. We'll utilize two "dev" packages: reqwest and fake. Dev dependencies only get introduced into your application in development or during testing. In production, they are not included:
  • Becoming Rustacean:Awesome Free Online Resources to Learn Rust Programming
    6 projects | | 11 Apr 2023
    Rust allows me to mainly only run the application to confirm things work from a business perspective.

    For people starting out building stuff in rust - understand that there is a distinction of async code and libraries and can lead to confusing compiler errors if you don't realize there is a distinction. It's simple in hindsight but did cause me to waste hours barking up the wrong trees at first. Other wise just learn about `match` and Result/Option types asap, they're fundamental. tide is great to create an http server / routes I use this to template out HTML and it checks all my boxes, dynamic data, passing in functions, control flow. sql interface for a variety of backend, async safe. http client to make requests

    Rust is amazing, don't let the initial few speed bumps discourage you - building real things with rust is no more challenging today than any other modern language stack.

  • This Month in hyper: March 2023
    3 projects | /r/rust | 7 Apr 2023
    Is there any this month in reqwest? I would like to show my interest in
  • You Have Mail: Email Notification on Android without Google Play Services
    3 projects | /r/rust | 16 Mar 2023
    Reqwest for HTTP connections
  • Announcing!
    13 projects | /r/rust | 7 Mar 2023
    It works by fetching a crate's metadata from, downloading the sources using reqwest, uncompressing them using flate2, extracting them (using tar), and finally rendering a diff (using similar). In the UI you can switch between different versions of the crate to diff against and it also has a search bar to enter the crate name.
  • Reqwest tutorial
    2 projects | /r/rust | 24 Feb 2023
    I am wondering this, too. Making a request is mostly about one line of code and as you said it is documented and the documentation refers to examples.

What are some alternatives?

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

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

hyper - An HTTP library for Rust

curl-rust - Rust bindings to libcurl

ureq - A simple, safe HTTP client

Rocket - A web framework for Rust.

surf - Fast and friendly HTTP client framework for async Rust

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

smol - A small and fast async runtime for Rust

tokio-tungstenite - Future-based Tungstenite for Tokio. Lightweight stream-based WebSocket implementation

curl-rs - A curl(libcurl) mod for rust.