---
title: "Fluent Assertions"
layout: splash
date: 2016-03-23T11:48:41-04:00
header:
overlay_color: "#373737"
overlay_filter: "0.7"
overlay_image: "/assets/images/fluent_assertions_large_horizontal.svg"
cta_label: "Fluent Assertions 6.11 is out!"
cta_url: "https://fluentassertions.com/releases/#6110"
caption: "Logo by [**IUserName**](https://github.com/IUsername) and icons by [**Zlatko Najdenovski**](https://www.flaticon.com/authors/zlatko-najdenovski) from [Flaticon](https://www.flaticon.com/)
"
excerpt: '_"There''s a life before Fluent Assertions, and there''s a life after it"_ - [Meisam Alifallahi](https://www.linkedin.com/in/meisam-alifallahi/)
[](https://github.com/fluentassertions/fluentassertions/releases/latest)
[](https://github.com/fluentassertions/fluentassertions/stargazers)
[](https://github.com/fluentassertions/fluentassertions/fork)
[](https://github.com/sponsors/fluentassertions)
'
intro:
- excerpt: '
[ @ddoomen](https://twitter.com/ddoomen){: .btn .btn--twitter}
[ @ddoomen](https://mastodon.social/@ddoomen){: .btn .btn--mastodon}
[ @jnyrup](https://twitter.com/jnyrup){: .btn .btn--twitter}
[ GitHub Sponsors](https://github.com/sponsors/fluentassertions){: .btn .btn--github}
[ Patreon](https://www.patreon.com/bePatron?u=9250052&redirect_uri=http%3A%2F%2Ffluentassertions.com%2F&utm_medium=widget){: .btn .btn--patreon}
[ Tip Us](https://paypal.me/fluentassertions){: .btn .btn--paypal}
[ Buy us a coffee](https://ko-fi.com/dennisdoomen){: .btn .btn--paypal}
A very extensive set of extension methods that allow you to more naturally specify the expected outcome of a TDD or
BDD-style unit tests. Targets .NET Framework 4.7, as well as .NET Core 2.1, .NET Core 3.0, .NET 6, .NET Standard 2.0 and 2.1.'
feature_row:
- title: "Intention-Revealing Unit Tests"
image_path: /assets/images/binoculars.svg
excerpt: "Write assertions that keep you and your fellow developers out of the debugger hell and clearly communicate what they are trying to accomplish."
btn_label: "Read More"
btn_class: "btn--primary"
url: "/introduction"
- title: "Comprehensive Documentation"
image_path: /assets/images/book.svg
excerpt: "Extensive documentation to help you understand the power of the assertions and learn finding the sweet spot of well-written unit tests."
url: "/introduction"
btn_label: "Read More"
btn_class: "btn--primary"
- title: "Highly
Extensible"
image_path: /assets/images/jigsaws.svg
excerpt: "Many documented extension points and overridable behavior that provides enough flexibility for even the most critical developer."
url: "/extensibility"
btn_label: "Read More"
btn_class: "btn--primary"
feature_row2:
- title: "Feature Complete"
image_path: /assets/images/checklist.svg
excerpt: '
Targets .NET 4.7, .NET Core 2.1, .Net Core 3.0, .NET 6, .NET Standard 2.0 and 2.1.
Supports MSTest2, xUnit2, NUnit3, MSpec and NSpec3.
'
- title: "Great Support"
image_path: /assets/images/customer-service.svg
excerpt: '
Use [ StackOverflow](https://stackoverflow.com/questions/tagged/fluent-assertions?mixed=1) for general questions,
go on [ Slack](https://fluentassertionsslack.herokuapp.com/) to contact the team directly, or
visit [ GitHub](https://github.com/fluentassertions/fluentassertions/issues) for issues & feature requests.
'
- title: "Passionate Team"
image_path: /assets/images/vote.svg
excerpt: '
Originally authored by
[Dennis Doomen](https://github.com/dennisdoomen), but
[Jonas Nyrup](https://github.com/jnyrup) has joined since then. Notable contributions by
[Michaël Hompus](https://github.com/eNeRGy164) and [Gunnar Liljas](https://github.com/gliljas).
'
feature_row3:
- title: "Powered By"
image_path: /assets/images/gift.svg
excerpt: '
This project is [supported](https://github.com/sponsors/fluentassertions) by [Albert Weinert](https://github.com/DerAlbertCom) and [Way We Do](https://github.com/waywedo) with special thanks to our super-sponsors
,
and
'
- title: "Community Extensions"
image_path: /assets/images/community.svg
excerpt: 'Broad community support with extensions for
[Json .NET](https://github.com/fluentassertions/fluentassertions.json),
[Ninject](https://github.com/kevinkuszyk/FluentAssertions.Ioc.Ninject),
[Autofac](https://github.com/awesome-inc/FluentAssertions.Autofac),
[ASP.NET MVC](https://github.com/CaseyBurns/FluentAssertions.MVC),
[ASP.NET Core MVC](https://github.com/fluentassertions/fluentassertions.aspnetcore.mvc) and even Roslyn analyzers through
[FluentAssertions.Analyzers](https://github.com/fluentassertions/fluentassertions.analyzers)
'
- title: "What People Say"
image_path: /assets/images/twitter.svg
twitter: "true"
---
{% include feature_row id="intro" type="center" %}
{% include feature_row %}
{% include feature_row id="feature_row2" %}
{% include feature_row id="feature_row3" %}