FluentValidation 7.2.0-beta1

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

Showing the top 20 packages that depend on FluentValidation.

Packages Downloads
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
119
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
121
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
123
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
141
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
162
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
251
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
353
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
1,056
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
120
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
122
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
130
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
150
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
164
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
268
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
356
RulesEngine
Rules Engine is a package for abstracting business logic/rules/policies out of the system. This works in a very simple way by giving you an ability to put your rules in a store outside the core logic of the system thus ensuring that any change in rules doesn't affect the core system.
151
RulesEngine
Rules Engine is a package for abstracting business logic/rules/policies out of the system. This works in a very simple way by giving you an ability to put your rules in a store outside the core logic of the system thus ensuring that any change in rules doesn't affect the core system.
161
RulesEngine
Rules Engine is a package for abstracting business logic/rules/policies out of the system. This works in a very simple way by giving you an ability to put your rules in a store outside the core logic of the system thus ensuring that any change in rules doesn't affect the core system.
215
RulesEngine
Rules Engine is a package for abstracting business logic/rules/policies out of the system. This works in a very simple way by giving you an ability to put your rules in a store outside the core logic of the system thus ensuring that any change in rules doesn't affect the core system.
326
RulesEngine
Rules Engine is a package for abstracting business logic/rules/policies out of the system. This works in a very simple way by giving you an ability to put your rules in a store outside the core logic of the system thus ensuring that any change in rules doesn't affect the core system.
539

FluentValidation 7.0 is a major release that contains several breaking changes, especially with Localization. If you use FluentValidation's support for localization please read the updated documentation: https://github.com/JeremySkinner/FluentValidation/wiki/f.-Localization * Localization rewrite to not require satellite assemblies * New 'Custom' rule method replaces the root-level Custom method * Switch to Netstandard based build process * Assemblies are now signed / strongly named * Fix - Possible NullReferenceException in the AspNetCore clientside integration for length validators * Fix - Don't clear the ModelValidatorProviders collection by default in the AspNetCore integration (added new ClearValidatorProviders property to control this behaviour) * Fix - Ensure IValidatorFactory is resolved from request scope in asp.net core integration * Fix - Property getter that throws an exception causes validation to fail in WebApi integration * Fix - Issue in AspNetCore integration where we tried to resolve a collection validator in some situations where a class validator should be used * Fix - Incorrect clientside validation attributes generated for email validator and credit card validator in the asp.net core integration * Fix - Child model validation now works in webapi integration * Improve splitting of PascalCased property names to support uppercase character sequences * ValidationResult.ErrorCode property now always returns the type of the PropertyValidator that generated the message, unless it's been explicitly overriden * Additional overload of WithState allows access to collection item when used with RuleForEach Full release notes can be found at https://github.com/JeremySkinner/FluentValidation/blob/master/Changelog.txt

.NET Framework 4.5

  • No dependencies.

.NET Standard 1.0

Version Downloads Last updated
12.1.1 9 12/04/2025
12.1.0 89 11/04/2025
12.0.0 279 05/06/2025
12.0.0-preview1 74 01/03/2025
11.12.0 30 11/07/2025
11.11.0 226 11/20/2024
11.10.0 320 09/20/2024
11.9.2 241 06/27/2024
11.9.1 111 07/22/2024
11.9.0 260 02/05/2024
11.8.1 146 07/22/2024
11.8.0 102 07/22/2024
11.7.1 90 07/22/2024
11.7.0 99 07/22/2024
11.6.0 100 07/22/2024
11.5.2 96 07/22/2024
11.5.1 240 02/04/2024
11.5.0 95 07/22/2024
11.4.0 99 07/17/2024
11.3.0 119 02/04/2024
11.2.2 101 07/22/2024
11.2.1 105 07/22/2024
11.2.0 107 07/22/2024
11.1.1 100 07/22/2024
11.1.0 101 07/13/2024
11.0.3 111 07/22/2024
11.0.2 97 07/22/2024
11.0.1 92 07/22/2024
11.0.0 101 07/22/2024
10.4.0 200 02/04/2024
10.3.6 99 07/22/2024
10.3.5 90 07/22/2024
10.3.4 107 07/17/2024
10.3.3 108 07/17/2024
10.3.1 113 07/22/2024
10.3.0 93 05/29/2024
10.2.3 106 07/22/2024
10.2.2 96 07/22/2024
10.2.1 88 07/22/2024
10.2.0 100 07/22/2024
10.1.0 106 07/22/2024
10.0.4 104 07/22/2024
9.5.4 112 07/22/2024
9.5.3 98 07/22/2024
9.5.2 108 07/22/2024
9.5.1 96 07/22/2024
9.5.0 117 02/09/2024
9.4.0 99 07/22/2024
9.3.0 97 07/22/2024
9.3.0-preview3 102 07/22/2024
9.3.0-preview2 100 07/22/2024
9.3.0-preview1 105 07/22/2024
9.2.2 99 07/22/2024
9.2.1 101 07/18/2024
9.2.0 92 07/22/2024
9.1.3 110 07/22/2024
9.1.2 99 07/22/2024
9.1.1 92 07/22/2024
9.1.0 99 07/22/2024
9.0.1 107 07/22/2024
9.0.0-preview5 101 07/22/2024
9.0.0-preview4 94 07/22/2024
9.0.0-preview3 106 07/22/2024
9.0.0-preview2 95 07/22/2024
9.0.0-preview1 100 07/22/2024
8.6.3 105 07/22/2024
8.6.2 88 07/22/2024
8.6.1 98 07/22/2024
8.6.0 100 07/22/2024
8.5.1 101 07/21/2024
8.5.0 103 07/18/2024
8.5.0-preview5 108 07/22/2024
8.5.0-preview4 98 07/22/2024
8.5.0-preview3 93 07/22/2024
8.5.0-preview2 108 07/22/2024
8.5.0-preview1 97 07/22/2024
8.4.0 103 07/22/2024
8.3.0 107 07/22/2024
8.2.3 98 07/22/2024
8.2.2 95 07/22/2024
8.2.1 101 07/22/2024
8.2.0 107 07/22/2024
8.1.3 107 07/22/2024
8.1.2 89 07/22/2024
8.1.1 89 07/22/2024
8.1.0 106 07/22/2024
8.1.0-preview2 95 07/22/2024
8.1.0-preview1 108 07/22/2024
8.0.101 106 07/22/2024
8.0.100 95 07/17/2024
8.0.0 94 07/22/2024
8.0.0-rc1 109 07/22/2024
8.0.0-preview4 95 07/22/2024
8.0.0-preview3 100 07/22/2024
8.0.0-preview2 106 07/22/2024
7.6.105 98 07/22/2024
7.6.104 101 07/22/2024
7.6.103 90 07/22/2024
7.6.102 104 07/22/2024
7.6.101 96 07/22/2024
7.6.100 108 07/22/2024
7.6.0 110 07/22/2024
7.6.0-preview1 103 07/22/2024
7.5.2 98 07/22/2024
7.5.1 87 06/21/2024
7.5.0 107 07/22/2024
7.4.0 94 07/22/2024
7.3.4 93 07/22/2024
7.3.3 98 07/22/2024
7.3.2 94 07/22/2024
7.3.1 95 07/22/2024
7.3.0 97 07/22/2024
7.3.0-beta3 109 07/22/2024
7.3.0-beta2 102 07/22/2024
7.3.0-beta1 110 07/22/2024
7.2.1 102 07/22/2024
7.2.0 103 07/22/2024
7.2.0-beta3 97 07/22/2024
7.2.0-beta2 109 07/22/2024
7.2.0-beta1 102 07/22/2024
7.1.1 95 07/22/2024
7.1.0 92 07/22/2024
7.1.0-beta1 92 07/22/2024
7.0.3 98 07/22/2024
7.0.2 94 07/22/2024
7.0.1 118 07/22/2024
7.0.0 100 07/22/2024
7.0.0-beta3 91 07/22/2024
7.0.0-beta2 96 07/22/2024
7.0.0-beta1 87 07/22/2024
6.4.1 112 07/22/2024
6.4.1-beta1 122 07/22/2024
6.4.0 101 07/22/2024
6.4.0-rc4 122 07/22/2024
6.4.0-rc3 97 07/22/2024
6.4.0-rc2 108 07/22/2024
6.4.0-rc1 109 07/22/2024
6.4.0-beta9 136 07/22/2024
6.4.0-beta8 131 07/22/2024
6.4.0-beta7 105 07/22/2024
6.4.0-beta6 109 07/22/2024
6.4.0-beta5 108 07/22/2024
6.4.0-beta4 111 07/22/2024
6.4.0-beta3 92 07/22/2024
6.4.0-beta2 111 07/22/2024
6.4.0-beta10 118 07/22/2024
6.4.0-beta1 88 07/22/2024
6.3.4-alpha 101 07/22/2024
6.3.3-alpha 96 07/22/2024
6.2.1 101 07/22/2024
6.2.1-beta1 93 07/22/2024
6.2.0 87 07/22/2024
6.2.0-beta1 105 07/22/2024
6.1.0 100 07/22/2024
6.0.2 90 07/22/2024
6.0.1 95 07/22/2024
6.0.0 106 07/22/2024
5.6.2 108 07/22/2024
5.6.1 102 07/22/2024
5.5.0 101 07/22/2024
5.4.0 110 07/22/2024
5.3.0 106 07/21/2024
5.2.0 104 07/22/2024
5.1.0 109 07/22/2024
5.0.0.1 103 07/22/2024
4.0.0.1 110 07/22/2024
4.0.0 110 07/22/2024
3.4.6 97 07/22/2024
3.4.0 95 07/22/2024
3.3.1 103 07/22/2024
3.2.0 117 07/22/2024
3.1.0 103 07/22/2024
3.0.0.1 89 07/22/2024
3.0.0 108 07/22/2024
2.0.0 90 07/22/2024
1.3.0 106 07/22/2024