FluentValidation 10.3.1

Prefix Reserved
.NET 5.0 This package targets .NET 5.0. The package is compatible with this framework or higher. .NET Standard 2.0 This package targets .NET Standard 2.0. The package is compatible with this framework or higher.
There is a newer version of this package available.
See the version list below for details. 
dotnet add package FluentValidation --version 10.3.1
                    


                    

                
NuGet\Install-Package FluentValidation -Version 10.3.1
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="FluentValidation" Version="10.3.1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="FluentValidation" Version="10.3.1" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="FluentValidation" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add FluentValidation --version 10.3.1
                    


                    

                
#r "nuget: FluentValidation, 10.3.1"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package FluentValidation@10.3.1
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=FluentValidation&version=10.3.1
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=FluentValidation&version=10.3.1
                    


                            Install as a Cake Tool

A validation library for .NET that uses a fluent interface to construct strongly-typed validation rules.

Product Compatible and additional computed target framework versions.
.NET net5.0 is compatible.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 is compatible. 
.NET Framework net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

  • .NETStandard 2.0

    • No dependencies.

  • .NETStandard 2.1

    • No dependencies.

  • net5.0

    • No dependencies.

NuGet packages (3.0K)

Showing the top 5 NuGet packages that depend on FluentValidation:

Package Downloads
FluentValidation.DependencyInjectionExtensions

Dependency injection extensions for FluentValidation
FluentValidation.AspNetCore

AspNetCore integration for FluentValidation
Reo.Core.DataModels

Package Description
Ocelot

Ocelot is an API gateway based on .NET stack.
Reo.Core.Validation

Package Description

GitHub repositories (259)

Showing the top 20 popular GitHub repositories that depend on FluentValidation:

Repository Stars
ardalis/CleanArchitecture
Clean Architecture Solution Template: A proven Clean Architecture Template for ASP.NET Core 10
abpframework/abp
Open-source web application framework for ASP.NET Core! Offers an opinionated architecture to build enterprise software solutions with best practices on top of the .NET. Provides the fundamental infrastructure, cross-cutting-concern implementations, startup templates, application modules, UI themes, tooling and documentation.
kgrzybek/modular-monolith-with-ddd
Full Modular Monolith application with Domain-Driven Design approach.
Sonarr/Sonarr
Smart PVR for newsgroup and bittorrent users.
Radarr/Radarr
Movie organizer/manager for usenet and torrent users.
aspnetboilerplate/aspnetboilerplate
ASP.NET Boilerplate - Web Application Framework
dotnet-architecture/eShopOnWeb
Sample ASP.NET Core 8.0 reference application, now community supported: https://github.com/NimblePros/eShopOnWeb
MudBlazor/MudBlazor
Blazor Component Library based on Material Design principles with an emphasis on ease of use and extensibility
ThreeMammals/Ocelot
.NET API Gateway
NancyFx/Nancy
Lightweight, low-ceremony, framework for building HTTP based services on .Net and Mono
EduardoPires/EquinoxProject
Web Application ASP.NET 9 using Clean Architecture, DDD, CQRS, Event Sourcing and a lot of good practices
canton7/SyncTrayzor
Windows tray utility / filesystem watcher / launcher for Syncthing
Prowlarr/Prowlarr
Prowlarr is an indexer manager/proxy built on the popular *arr .net/reactjs base stack to integrate with your various PVR apps, supporting management of both Torrent Trackers and Usenet Indexers.
FastEndpoints/FastEndpoints
A light-weight REST API development framework for ASP.NET 8 and newer.
jasontaylordev/NorthwindTraders
Northwind Traders is a sample application built using ASP.NET Core and Entity Framework Core.
Lidarr/Lidarr
Looks and smells like Sonarr but made for music.
microsoft/RulesEngine
A fast and reliable .NET Rules Engine with extensive Dynamic expression support
fullstackhero/blazor-starter-kit
Clean Architecture Template for Blazor WebAssembly Built with MudBlazor Components.
Megabit/Blazorise
Blazorise is a component library built on top of Blazor with support for CSS frameworks like Bootstrap, Tailwind, Bulma, AntDesign, and Material.
Readarr/Readarr
Book Manager and Automation (Sonarr for Ebooks)
Version Downloads Last Updated
12.1.1 1,640,474 12/3/2025
12.1.0 2,965,180 11/3/2025
12.0.0 23,620,398 5/5/2025
12.0.0-preview1 290,273 1/2/2025
11.12.0 431,869 11/3/2025
11.11.0 55,308,463 11/16/2024
11.10.0 22,561,761 9/15/2024
11.9.2 29,455,584 6/10/2024
11.9.1 15,044,598 4/23/2024
11.9.0 36,117,534 12/21/2023
11.8.1 10,427,447 11/22/2023
11.8.0 10,503,186 10/19/2023
11.7.1 12,647,988 8/12/2023
11.7.0 151,620 8/11/2023
11.6.0 9,652,754 7/4/2023
11.5.2 21,100,649 4/7/2023
11.5.1 72,372,956 2/20/2023
11.5.0 3,379,046 2/13/2023
11.4.0 20,831,285 11/23/2022
11.3.0 3,911,250 11/10/2022
11.2.2 17,729,467 9/11/2022
11.2.1 24,636,461 8/28/2022
11.2.0 8,004,517 8/8/2022
11.1.1 698,989 8/6/2022
11.1.0 14,002,999 6/22/2022
11.0.3 3,806,581 6/10/2022
11.0.2 5,833,461 5/27/2022
11.0.1 7,110,167 5/7/2022
11.0.0 7,406,711 4/30/2022
10.4.0 22,223,366 3/11/2022
10.3.6 28,607,526 12/13/2021
10.3.5 3,353,852 11/30/2021
10.3.4 10,768,704 10/22/2021
10.3.3 12,722,337 8/24/2021
10.3.1 763,798 8/19/2021
10.3.0 8,907,349 7/9/2021
10.2.3 8,908,231 6/3/2021
10.2.2 483,460 6/1/2021
10.2.1 1,408,216 5/30/2021
10.2.0 398,987 5/28/2021
10.1.0 5,760,093 4/28/2021
10.0.4 4,430,539 4/17/2021
9.5.4 8,058,534 4/5/2021
9.5.3 4,189,057 3/15/2021
9.5.2 2,102,056 3/8/2021
9.5.1 6,983,542 2/11/2021
9.5.0 3,548,828 1/31/2021
9.4.0 3,205,198 1/14/2021
9.3.0 15,441,133 11/10/2020
9.3.0-preview3 40,240 10/19/2020
9.3.0-preview2 155,951 9/15/2020
9.3.0-preview1 13,809 8/26/2020
9.2.2 7,369,215 9/20/2020
9.2.1 34,371 9/19/2020
9.2.0 8,291,304 8/26/2020
9.1.3 1,053,024 8/19/2020
9.1.2 1,004,879 8/12/2020
9.1.1 691,160 8/8/2020
9.1.0 336,959 8/8/2020
9.0.1 5,753,395 7/14/2020
9.0.0-preview5 90,995 5/23/2020
9.0.0-preview4 147,749 4/22/2020
9.0.0-preview3 210,946 2/29/2020
9.0.0-preview2 32,800 2/21/2020
9.0.0-preview1 102,124 2/8/2020
8.6.3 8,195,773 8/28/2020
8.6.2 29,905,494 2/29/2020
8.6.1 13,503,585 12/28/2019
8.6.0 4,464,247 12/4/2019
8.5.1 4,005,826 11/2/2019
8.5.0 6,835,183 9/24/2019
8.5.0-preview5 71,276 9/1/2019
8.5.0-preview4 103,951 7/23/2019
8.5.0-preview3 32,879 7/10/2019
8.5.0-preview2 90,828 6/13/2019
8.5.0-preview1 65,231 5/10/2019
8.4.0 15,323,596 5/10/2019
8.3.0 4,266,988 4/24/2019
8.2.3 756,381 4/12/2019
8.2.2 1,178,668 4/5/2019
8.2.1 510,759 4/4/2019
8.2.0 1,130,775 3/26/2019
8.1.3 5,275,535 1/25/2019
8.1.2 2,432,014 12/18/2018
8.1.1 627,362 12/11/2018
8.1.0 857,847 12/6/2018
8.1.0-preview2 29,990 11/14/2018
8.1.0-preview1 28,419 10/14/2018
8.0.101 974,093 11/24/2018
8.0.100 4,213,020 9/4/2018
8.0.0 1,209,435 8/16/2018
8.0.0-rc1 54,755 7/24/2018
8.0.0-preview4 26,207 7/16/2018
8.0.0-preview3 24,836 7/13/2018
8.0.0-preview2 24,676 7/13/2018
7.6.105 1,957,513 8/11/2018
7.6.104 2,852,050 7/6/2018
7.6.103 1,340,496 6/16/2018
7.6.102 347,451 6/14/2018
7.6.101 78,455 6/13/2018
7.6.100 183,426 6/7/2018
7.6.0 416,390 6/1/2018
7.6.0-preview1 53,744 4/12/2018
7.5.2 4,040,810 3/16/2018
7.5.1 286,691 3/11/2018
7.5.0 758,773 2/26/2018
7.4.0 2,460,830 1/26/2018
7.3.4 1,158,253 1/2/2018
7.3.3 201,741 12/22/2017
7.3.2 77,244 12/21/2017
7.3.1 353,870 12/13/2017
7.3.0 131,419 12/13/2017
7.3.0-beta3 28,700 12/8/2017
7.3.0-beta2 47,965 11/20/2017
7.3.0-beta1 25,508 11/11/2017
7.2.1 3,006,470 10/24/2017
7.2.0 859,031 10/5/2017
7.2.0-beta3 41,952 9/5/2017
7.2.0-beta2 27,782 8/22/2017
7.2.0-beta1 23,970 8/19/2017
7.1.1 2,509,042 7/25/2017
7.1.0 569,085 6/28/2017
7.1.0-beta1 23,748 6/24/2017
7.0.3 769,970 6/7/2017
7.0.2 294,742 5/26/2017
7.0.1 101,331 5/23/2017
7.0.0 771,219 5/19/2017
7.0.0-beta3 100,929 5/1/2017
7.0.0-beta2 27,444 4/17/2017
7.0.0-beta1 25,022 4/7/2017
6.4.1 2,392,763 3/15/2017
6.4.1-beta1 24,035 3/13/2017
6.4.0 1,105,323 3/3/2017
6.4.0-rc4 146,833 2/13/2017
6.4.0-rc3 39,992 2/3/2017
6.4.0-rc2 40,057 1/30/2017
6.4.0-rc1 23,847 1/30/2017
6.4.0-beta9 91,918 11/21/2016
6.4.0-beta8 50,853 10/31/2016
6.4.0-beta7 24,505 10/28/2016
6.4.0-beta6 24,791 10/25/2016
6.4.0-beta5 24,379 10/24/2016
6.4.0-beta4 24,480 10/21/2016
6.4.0-beta3 71,945 7/4/2016
6.4.0-beta2 25,363 7/1/2016
6.4.0-beta10 23,568 1/30/2017
6.4.0-beta1 28,779 6/28/2016
6.3.4-alpha 443,379 6/1/2016
6.3.3-alpha 23,360 5/27/2016
6.2.1 5,638,365 2/26/2016
6.2.1-beta1 28,837 2/24/2016
6.2.0 173,190 2/22/2016
6.2.0-beta1 24,686 2/12/2016
6.1.0 448,743 1/18/2016
6.0.2 119,251 1/5/2016
6.0.1 40,360 1/5/2016
6.0.0 137,405 12/22/2015
5.6.2 1,666,685 5/29/2015
5.6.1 35,185 5/29/2015
5.5.0 1,239,891 10/31/2014
5.4.0 617,330 7/3/2014
5.3.0 106,272 5/27/2014
5.2.0 77,840 5/21/2014
5.1.0 1,091,155 3/11/2014
5.0.0.1 574,927 10/24/2013
4.0.0.1 312,618 7/18/2013
4.0.0 122,848 4/29/2013
3.4.6 438,453 8/30/2012
3.4.0 73,508 8/17/2012
3.3.1 95,074 3/30/2012
3.2.0 79,674 11/14/2011
3.1.0 53,411 7/30/2011
3.0.0.1 26,640 7/5/2011
3.0.0 47,895 6/25/2011
2.0.0 78,869 1/9/2011
1.3.0 474,868 1/7/2011

FluentValidation 10 is a major release. Please read the upgrade guide at https://docs.fluentvalidation.net/en/latest/upgrading-to-10.html

Full release notes can be found at https://github.com/FluentValidation/FluentValidation/releases