Flurl is a modern, fluent, asynchronous, testable, portable, buzzword-laden URL builder and HTTP client library for .NET.

Code It

// Flurl will use 1 HttpClient instance per host
var person = await "https://api.com"
    .SetQueryParams(new { a = 1, b = 2 })
        first_name = "Claire",
        last_name = "Underwood"

Test It

// fake & record all http calls in the test subject
using (var httpTest = new HttpTest()) {
    // arrange
    httpTest.RespondWith("OK", 200);
    // act
    await sut.CreatePersonAsync();
    // assert

Flurl is available on NuGet and is free for commercial use. It runs on a wide variety of platforms, including .NET Framework, .NET Core, Xamarin, and UWP.

Get It

For just the URL builder, install Flurl. For everything else, install Flurl.Http.

Learn It

You've come to the right place. Check out the docs.

Ask a Question

For programming question related to Flurl, please ask on Stack Overflow.

Report an Issue

To report a bug or request a feature, open an issue on GitHub.

Stay Informed

To stay current on releases and other announcements, follow @FlurlHttp.


To contribure code, please see the contribution guidelines.