diff --git a/Mk0.Tools.Randomization.sln b/Mk0.Tools.Randomization.sln
new file mode 100644
index 0000000..5da94a1
--- /dev/null
+++ b/Mk0.Tools.Randomization.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.28307.438
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Mk0.Tools.Randomization", "Mk0.Tools.Randomization\Mk0.Tools.Randomization.csproj", "{B5391664-66E2-4C4E-BCDA-089B446B9034}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{B5391664-66E2-4C4E-BCDA-089B446B9034}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{B5391664-66E2-4C4E-BCDA-089B446B9034}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{B5391664-66E2-4C4E-BCDA-089B446B9034}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{B5391664-66E2-4C4E-BCDA-089B446B9034}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {39C91CEC-87C1-438E-BD56-D381D86CFCA9}
+	EndGlobalSection
+EndGlobal
diff --git a/Mk0.Tools.Randomization/Mk0.Tools.Randomization.csproj b/Mk0.Tools.Randomization/Mk0.Tools.Randomization.csproj
new file mode 100644
index 0000000..6fbe5fc
--- /dev/null
+++ b/Mk0.Tools.Randomization/Mk0.Tools.Randomization.csproj
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{B5391664-66E2-4C4E-BCDA-089B446B9034}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>Mk0.Tools.Randomization</RootNamespace>
+    <AssemblyName>Mk0.Tools.Randomization</AssemblyName>
+    <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <Deterministic>true</Deterministic>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="Microsoft.CSharp" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Randomize.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>
\ No newline at end of file
diff --git a/Mk0.Tools.Randomization/Properties/AssemblyInfo.cs b/Mk0.Tools.Randomization/Properties/AssemblyInfo.cs
new file mode 100644
index 0000000..aa135a7
--- /dev/null
+++ b/Mk0.Tools.Randomization/Properties/AssemblyInfo.cs
@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// Allgemeine Informationen über eine Assembly werden über die folgenden
+// Attribute gesteuert. Ändern Sie diese Attributwerte, um die Informationen zu ändern,
+// die einer Assembly zugeordnet sind.
+[assembly: AssemblyTitle("Mk0.Tools.Randomization")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("Mk0.Tools.Randomization")]
+[assembly: AssemblyCopyright("Copyright ©  2019 mk0.at")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Durch Festlegen von ComVisible auf FALSE werden die Typen in dieser Assembly
+// für COM-Komponenten unsichtbar.  Wenn Sie auf einen Typ in dieser Assembly von
+// COM aus zugreifen müssen, sollten Sie das ComVisible-Attribut für diesen Typ auf "True" festlegen.
+[assembly: ComVisible(false)]
+
+// Die folgende GUID bestimmt die ID der Typbibliothek, wenn dieses Projekt für COM verfügbar gemacht wird
+[assembly: Guid("b5391664-66e2-4c4e-bcda-089b446b9034")]
+
+// Versionsinformationen für eine Assembly bestehen aus den folgenden vier Werten:
+//
+//      Hauptversion
+//      Nebenversion
+//      Buildnummer
+//      Revision
+//
+// Sie können alle Werte angeben oder Standardwerte für die Build- und Revisionsnummern verwenden,
+// indem Sie "*" wie unten gezeigt eingeben:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]
diff --git a/Mk0.Tools.Randomization/Randomize.cs b/Mk0.Tools.Randomization/Randomize.cs
new file mode 100644
index 0000000..a680c53
--- /dev/null
+++ b/Mk0.Tools.Randomization/Randomize.cs
@@ -0,0 +1,83 @@
+using System;
+using System.Text;
+
+namespace Mk0.Tools.Randomization
+{
+    public class Randomize
+    {
+        /// <summary>
+        /// Generiert einen zufälligen String aus Zahlen und Buchstaben mit optionalem Endzeichen
+        /// </summary>
+        /// <param name="length"></param>
+        /// <param name="endzeichen"></param>
+        /// <returns>Zufallsstring</returns>
+        public static string NumbersAndDigits(int length, string beginnzeichen = "", string endzeichen = "")
+        {
+            string ret = string.Empty;
+            StringBuilder SB = new StringBuilder();
+            string Content = "1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvw";
+            Random rnd = new Random();
+            if (beginnzeichen != "")
+            {
+                SB.Append(beginnzeichen);
+            }
+            for (int i = 0; i < length; i++)
+                SB.Append(Content[rnd.Next(Content.Length)]);
+            if (endzeichen != "")
+            {
+                SB.Append(endzeichen);
+            }
+            return SB.ToString();
+        }
+
+        /// <summary>
+        /// Generiert einen zufälligen String Buchstaben mit optionalem Endzeichen
+        /// </summary>
+        /// <param name="length"></param>
+        /// <param name="endzeichen"></param>
+        /// <returns>Zufallsstring</returns>
+        public static string Digits(int length, string beginnzeichen = "", string endzeichen = "")
+        {
+            string ret = string.Empty;
+            StringBuilder SB = new StringBuilder();
+            string Content = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvw";
+            Random rnd = new Random();
+            if (beginnzeichen != "")
+            {
+                SB.Append(beginnzeichen);
+            }
+            for (int i = 0; i < length; i++)
+                SB.Append(Content[rnd.Next(Content.Length)]);
+            if (endzeichen != "")
+            {
+                SB.Append(endzeichen);
+            }
+            return SB.ToString();
+        }
+
+        /// <summary>
+        /// Generiert einen zufälligen String aus Zahlen mit optionalem Endzeichen
+        /// </summary>
+        /// <param name="length"></param>
+        /// <param name="endzeichen"></param>
+        /// <returns>Zufallsstring</returns>
+        public static string Numbers(int length, string beginnzeichen = "", string endzeichen = "")
+        {
+            string ret = string.Empty;
+            StringBuilder SB = new StringBuilder();
+            string Content = "1234567890";
+            Random rnd = new Random();
+            if (beginnzeichen != "")
+            {
+                SB.Append(beginnzeichen);
+            }
+            for (int i = 0; i < length; i++)
+                SB.Append(Content[rnd.Next(Content.Length)]);
+            if (endzeichen != "")
+            {
+                SB.Append(endzeichen);
+            }
+            return SB.ToString();
+        }
+    }
+}
diff --git a/README.md b/README.md
index 796ec2b..b368c45 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,22 @@
-# Mk0.Tools.Randomization
\ No newline at end of file
+# Mk0.Tools.Randomization
+(C) 2019 mk0.at
+
+Allows you to generate a random string with a length of your choice.
+You can add an optional prefix and an optional appendix to the random string.
+
+You can use the following methods:
+
++ NumbersAndDigits (1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvw)
++ Digits (ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvw)
++ Numbers (1234567890)
+
+Example usage:
+
+Randomize.NumbersAndDigits(5, "_")
+will return f.e. "_j7Ga9"
+
+Randomize.Numbers(2, "*", "#")
+will return f.w. "*59#"
+
+Randomize.Digits(3)
+will return f.w. "fOu"
\ No newline at end of file