Check.Password.Strength 1.0.3

dotnet add package Check.Password.Strength --version 1.0.3
NuGet\Install-Package Check.Password.Strength -Version 1.0.3
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="Check.Password.Strength" Version="1.0.3" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Check.Password.Strength --version 1.0.3
#r "nuget: Check.Password.Strength, 1.0.3"
#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.
// Install Check.Password.Strength as a Cake Addin
#addin nuget:?package=Check.Password.Strength&version=1.0.3

// Install Check.Password.Strength as a Cake Tool
#tool nuget:?package=Check.Password.Strength&version=1.0.3


.NET package to check the password strength of a certain passphrase. A password strength checker based from System.Text.RegularExpressions.

Build Status


You can install using the following options: Package Manager

Install-Package Check.Password.Strength


dotnet add package Check.Password.Strength


<PackageReference Include="Check.Password.Strength" Version="1.0.2" />

Paket CLI

paket add Check.Password.Strength

Setup & Basic Usage

using CheckPasswordStrength;

public class MyClass {
    public void Test(){
        var password = "mypassword";
        var passwordStrength = password.PasswordStrength();
        // properties
        // Id = 0, Value = "Weak", Length = 10 & contains = [{Message = "lowercase"}]

Additional Info


Property Desc.
Id (int) 0 = Weak, 1 = Medium & 2 = Strong
Value (string) Weak, Medium & Strong
Contains (Collection) lowercase, uppercase, symbol and/or number
Length (int) length of the password


Strong Password RegEx used:


Medium Password RegEx used:


RegEx Desc.
^ The password string will start this way
(?=.*[a-z]) The string must contain at least 1 lowercase alphabetical character
(?=.*[A-Z]) The string must contain at least 1 uppercase alphabetical character
(?=.*[0-9]) The string must contain at least 1 numeric character
(?=.[!@#$%^&]) The string must contain at least one special character, but we are escaping reserved RegEx characters to avoid conflict
(?=.{8,}) The string must be eight characters or longer

Other info

If you're working with node.js environment, optionally, you use this package check-password-password. This NPM package uses the same RegEx for checking password strength.


Feel free to clone or fork this project:

Contributions & pull requests are welcome!

I'll be glad if you give this project a ★ on Github 😃


This project is licensed under the MIT License - see the file for details.

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  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. 
.NET Core netcoreapp3.1 is compatible. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.
  • .NETCoreApp 3.1

    • No dependencies.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last updated
1.0.3 9,288 9/8/2020
1.0.2 423 9/8/2020
1.0.0 445 9/7/2020