reqwest vs ureq vs hyper: Which Rust HTTP Client in 2026?

A direct comparison of Rust's three main HTTP client crates, reqwest, ureq, and hyper, with clear guidance on which to choose for your project in 2026. Covers async vs blocking, compile times, binary size, and real-world use cases.

If you need the shortest honest answer: use reqwest by default, use ureq when simplicity and compile time matter more than async, and use hyper only when you are building lower-level HTTP infrastructure.

By Max Wells, updated August 2026

TL;DR: reqwest is the correct default for async applications; ureq is the correct choice for blocking/synchronous applications and when compile times matter; hyper is for building HTTP libraries and servers, not for direct use as a client.

• reqwest: async, ergonomic, full-featured, the default for 90% of use cases
• ureq: blocking/sync, fast compile times, small binary, correct for CLI tools and scripts
• hyper: low-level HTTP building block, not an end-user client; use reqwest which wraps it
• Compile time: ureq compiles significantly faster than reqwest (reqwest pulls in TLS + tokio)
• Feature parity: reqwest has more built-in features (cookie jar, multipart, redirects); ureq is more minimal

Who Should Read This?

This comparison is for Rust developers choosing an HTTP client for a new project or evaluating whether to switch from their current choice. HTTP client selection is one of the first decisions in any Rust project that makes network requests; it affects your dependency tree, compile times, and async vs sync model. Getting this choice right from the start saves refactoring later.

Bottom line: Best default for application code: reqwest. Best minimal choice for sync tools: ureq. Best low-level building block: hyper.

Which One Should You Choose in 2026?

Choose reqwest for most application code. Choose ureq when blocking I/O, tiny binaries, and fast compile times matter. Choose hyper only when you need low-level control or are building HTTP infrastructure, not just consuming an API.

Use this quick filter:

1. Choose reqwest if you are already in Tokio or writing any normal async backend or app code.
2. Choose ureq if you are writing a CLI, build script, installer, or simple tool where async would only add weight.
3. Choose hyper if you are building a framework, a transport layer, or a specialized client where the abstraction cost of reqwest gets in the way.

The Three Crates: What They Are

reqwest

The ergonomic, full-featured async HTTP client. Built on top of hyper, supports TLS via rustls or native-tls, automatic JSON with serde, cookie management, multipart, and more.

// async usage
let client = reqwest::Client::new();
let response = client
    .get("https://api.example.com/users")
    .header("Authorization", "Bearer token")
    .send()
    .await?;
 
let users: Vec<User> = response.json().await?;

ureq

The minimal, blocking HTTP client. No async, no runtime dependency. Simple and fast to compile.

// blocking usage
let response = ureq::get("https://api.example.com/users")
    .set("Authorization", "Bearer token")
    .call()?;
 
let users: Vec<User> = response.into_json()?;

hyper

Low-level HTTP/1.1 and HTTP/2 implementation. The foundation that reqwest and Axum are built on. Not intended for direct use as a client; use reqwest instead.

// hyper direct usage : verbose, rarely needed
use hyper::{Body, Client, Request};
 
let client = Client::new();
let req = Request::builder()
    .uri("http://api.example.com/users")
    .body(Body::empty())?;
 
let resp = client.request(req).await?;

Decision Matrix

Bottom line: reqwest is the correct default for 90% of Rust projects. Only reach for ureq when compile times are a bottleneck (CLI tools, build scripts), and only use hyper directly if you are building an HTTP library or framework yourself.

When to Use reqwest

Choose reqwest when you are in an async application (tokio-based) and want the least friction.

reqwest is the right choice for:

• Any Axum or Actix-web service that makes outbound HTTP calls
• Microservices talking to external APIs
• Any application already using Tokio
• Projects where ergonomics matter more than compile times

// reqwest shines in async contexts
#[derive(Deserialize)]
struct WeatherResponse {
    temperature: f64,
    condition: String,
}
 
async fn get_weather(city: &str) -> anyhow::Result<WeatherResponse> {
    let url = format!("https://api.weather.example/{}", city);
    let response = reqwest::get(&url).await?.error_for_status()?;
    Ok(response.json::<WeatherResponse>().await?)
}

reqwest's killer feature for production: the .error_for_status()? method, which returns an error if the HTTP status is 4xx or 5xx, which is what you almost always want and saves boilerplate.

reqwest Compile Time Warning

reqwest is one of the heaviest dependencies in the Rust ecosystem. A project that only uses reqwest (no other heavy deps) will add 30–60 seconds to clean build times on a modern machine. In a large project where you're already compiling tokio and axum, the marginal cost is smaller.

Mitigation: enable reqwest with only the features you need:

reqwest = { version = "0.12", default-features = false, features = ["json", "rustls-tls"] }

Bottom line: For async web services and microservices, reqwest with default-features = false, features = ["json", "rustls-tls"] gives you the best balance of ergonomics and dependency weight.

When to Use ureq

Choose ureq when you are building a CLI tool, a blocking application, or when compile times are a priority.

ureq is the right choice for:

• CLI tools that make HTTP calls (compile time matters for developer experience)
• Lambda functions or other environments where cold start time matters
• Applications with no async runtime (simple scripts, build tools, offline-capable tools)
• Any project where binary size is constrained

// ureq: minimal and direct
fn fetch_latest_version(crate_name: &str) -> anyhow::Result<String> {
    let url = format!("https://crates.io/api/v1/crates/{}", crate_name);
    let response = ureq::get(&url)
        .set("User-Agent", "my-tool/0.1")
        .call()?;
 
    let data: CratesResponse = response.into_json()?;
    Ok(data.crate_info.max_version)
}

ureq compiles faster because it does not pull in Tokio. A project using only ureq for HTTP compiles in seconds; the same project using reqwest takes much longer due to the async runtime and TLS dependencies.

ureq Limitations

• No connection pooling by default: each request opens a new TCP connection. For high-frequency requests to the same host, this is inefficient. Use reqwest if you need connection reuse.
• No async: if your application uses Tokio, calling ureq from async code requires tokio::task::spawn_blocking.
• HTTP/2 not supported: HTTP/2 requires reqwest or hyper.

When to Use hyper (Rarely)

You almost never use hyper directly as a client. Use reqwest instead.

hyper is the right choice when:

• You are building an HTTP library or framework that needs HTTP primitives (this is what Axum and reqwest do)
• You need to implement a custom HTTP proxy with full control over the connection lifecycle
• You need HTTP/2 server push or other low-level protocol features

For 99% of Rust developers, the right answer is: use reqwest or ureq, not hyper directly.

Code Comparison: The Same Request in All Three

Fetch JSON from an API, deserialize into a struct:

// reqwest (async)
async fn get_user_reqwest(id: u64) -> anyhow::Result<User> {
    let url = format!("https://api.example.com/users/{}", id);
    let user = reqwest::get(&url).await?.json::<User>().await?;
    Ok(user)
}
 
// ureq (blocking)
fn get_user_ureq(id: u64) -> anyhow::Result<User> {
    let url = format!("https://api.example.com/users/{}", id);
    let user: User = ureq::get(&url).call()?.into_json()?;
    Ok(user)
}
 
// hyper (async, low-level : for comparison only)
async fn get_user_hyper(id: u64) -> anyhow::Result<User> {
    use hyper::{body::to_bytes, Client, Uri};
 
    let client = Client::new();
    let uri: Uri = format!("http://api.example.com/users/{}", id).parse()?;
    let resp = client.get(uri).await?;
    let bytes = to_bytes(resp.into_body()).await?;
    let user: User = serde_json::from_slice(&bytes)?;
    Ok(user)
}

The hyper version requires manual body buffering and JSON parsing. reqwest and ureq handle this in one line. This is why you use reqwest/ureq, not hyper directly.

Dependency Tree Impact

If you care about compile times and dependency counts:

For a CLI tool where compile time is part of the developer experience: ureq's advantage is real and meaningful.

Frequently Asked Questions

let result = tokio::task::spawn_blocking(|| {
    ureq::get("https://api.example.com/data").call()?.into_json::<Data>()
}).await??;

let client = reqwest::Client::builder()
    .timeout(std::time::Duration::from_secs(10))
    .connect_timeout(std::time::Duration::from_secs(3))
    .build()?;

Keep Reading

• Async Rust and Tokio: The Complete Guide
• Building a Backend API with Axum: A Complete Guide
• Rust Error Handling with Result and Option
• Rust Serde: Serialization and Deserialization Guide

Sources

• reqwest documentation
• ureq documentation
• hyper documentation
• Tokio Blog: reqwest and hyper
• Rust HTTP ecosystem: crates.io statistics