diff --git a/PowerToys.sln b/PowerToys.sln
index 4e5524c757..4c9c92ce47 100644
--- a/PowerToys.sln
+++ b/PowerToys.sln
@@ -811,6 +811,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Microsoft.CmdPal.Ext.WebSea
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Microsoft.CmdPal.Ext.Shell.UnitTests", "src\modules\cmdpal\Tests\Microsoft.CmdPal.Ext.Shell.UnitTests\Microsoft.CmdPal.Ext.Shell.UnitTests.csproj", "{E816D7B4-4688-4ECB-97CC-3D8E798F3833}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Microsoft.CmdPal.Ext.ClipboardHistory.UnitTests", "src\modules\cmdpal\Tests\Microsoft.CmdPal.Ext.ClipboardHistory.UnitTests\Microsoft.CmdPal.Ext.ClipboardHistory.UnitTests.csproj", "{4E0FCF69-B06B-D272-76BF-ED3A559B4EDA}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|ARM64 = Debug|ARM64
@@ -2945,6 +2947,14 @@ Global
 		{E816D7B4-4688-4ECB-97CC-3D8E798F3833}.Release|ARM64.Build.0 = Release|ARM64
 		{E816D7B4-4688-4ECB-97CC-3D8E798F3833}.Release|x64.ActiveCfg = Release|x64
 		{E816D7B4-4688-4ECB-97CC-3D8E798F3833}.Release|x64.Build.0 = Release|x64
+		{4E0FCF69-B06B-D272-76BF-ED3A559B4EDA}.Debug|ARM64.ActiveCfg = Debug|ARM64
+		{4E0FCF69-B06B-D272-76BF-ED3A559B4EDA}.Debug|ARM64.Build.0 = Debug|ARM64
+		{4E0FCF69-B06B-D272-76BF-ED3A559B4EDA}.Debug|x64.ActiveCfg = Debug|x64
+		{4E0FCF69-B06B-D272-76BF-ED3A559B4EDA}.Debug|x64.Build.0 = Debug|x64
+		{4E0FCF69-B06B-D272-76BF-ED3A559B4EDA}.Release|ARM64.ActiveCfg = Release|ARM64
+		{4E0FCF69-B06B-D272-76BF-ED3A559B4EDA}.Release|ARM64.Build.0 = Release|ARM64
+		{4E0FCF69-B06B-D272-76BF-ED3A559B4EDA}.Release|x64.ActiveCfg = Release|x64
+		{4E0FCF69-B06B-D272-76BF-ED3A559B4EDA}.Release|x64.Build.0 = Release|x64
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -3267,6 +3277,7 @@ Global
 		{E816D7B3-4688-4ECB-97CC-3D8E798F3832} = {8EF25507-2575-4ADE-BF7E-D23376903AB8}
 		{E816D7B2-4688-4ECB-97CC-3D8E798F3831} = {8EF25507-2575-4ADE-BF7E-D23376903AB8}
 		{E816D7B4-4688-4ECB-97CC-3D8E798F3833} = {8EF25507-2575-4ADE-BF7E-D23376903AB8}
+		{4E0FCF69-B06B-D272-76BF-ED3A559B4EDA} = {8EF25507-2575-4ADE-BF7E-D23376903AB8}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {C3A2F9D1-7930-4EF4-A6FC-7EE0A99821D0}
diff --git a/src/modules/cmdpal/Tests/Microsoft.CmdPal.Ext.ClipboardHistory.UnitTests/Microsoft.CmdPal.Ext.ClipboardHistory.UnitTests.csproj b/src/modules/cmdpal/Tests/Microsoft.CmdPal.Ext.ClipboardHistory.UnitTests/Microsoft.CmdPal.Ext.ClipboardHistory.UnitTests.csproj
new file mode 100644
index 0000000000..73abdbe772
--- /dev/null
+++ b/src/modules/cmdpal/Tests/Microsoft.CmdPal.Ext.ClipboardHistory.UnitTests/Microsoft.CmdPal.Ext.ClipboardHistory.UnitTests.csproj
@@ -0,0 +1,19 @@
+<Project Sdk="Microsoft.NET.Sdk">
+	<!-- Look at Directory.Build.props in root for common stuff as well -->
+	<Import Project="..\..\..\..\Common.Dotnet.CsWinRT.props" />
+
+	<PropertyGroup>
+		<IsPackable>false</IsPackable>
+		<RootNamespace>Microsoft.CmdPal.Ext.ClipboardHistory.UnitTests</RootNamespace>
+		<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+	</PropertyGroup>
+
+	<ItemGroup>
+		<PackageReference Include="Moq" />
+		<PackageReference Include="MSTest" />
+	</ItemGroup>
+	<ItemGroup>
+		<ProjectReference Include="..\..\ext\Microsoft.CmdPal.Ext.ClipboardHistory\Microsoft.CmdPal.Ext.ClipboardHistory.csproj" />
+		<ProjectReference Include="..\Microsoft.CmdPal.Ext.UnitTestsBase\Microsoft.CmdPal.Ext.UnitTestBase.csproj" />
+	</ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/src/modules/cmdpal/Tests/Microsoft.CmdPal.Ext.ClipboardHistory.UnitTests/UrlHelperTests.cs b/src/modules/cmdpal/Tests/Microsoft.CmdPal.Ext.ClipboardHistory.UnitTests/UrlHelperTests.cs
new file mode 100644
index 0000000000..01ed343b1d
--- /dev/null
+++ b/src/modules/cmdpal/Tests/Microsoft.CmdPal.Ext.ClipboardHistory.UnitTests/UrlHelperTests.cs
@@ -0,0 +1,185 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using Microsoft.CmdPal.Ext.ClipboardHistory.Helpers;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+namespace Microsoft.CmdPal.Ext.ClipboardHistory.UnitTests;
+
+[TestClass]
+public class UrlHelperTests
+{
+    [TestMethod]
+    [DataRow(null)]
+    [DataRow("")]
+    [DataRow("   ")]
+    [DataRow("\t")]
+    [DataRow("\r\n")]
+    public void IsValidUrl_ReturnssFalse_WhenUrlIsNullOrWhitespace(string url)
+    {
+        // Act
+        var result = UrlHelper.IsValidUrl(url);
+
+        // Assert
+        Assert.IsFalse(result);
+    }
+
+    [TestMethod]
+    [DataRow("test\nurl")]
+    [DataRow("test\rurl")]
+    [DataRow("http://example.com\nmalicious")]
+    [DataRow("https://test.com\r\nheader")]
+    public void IsValidUrl_ReturnsFalse_WhenUrlContainsNewlines(string url)
+    {
+        // Act
+        var result = UrlHelper.IsValidUrl(url);
+
+        // Assert
+        Assert.IsFalse(result);
+    }
+
+    [TestMethod]
+    [DataRow("com")]
+    [DataRow("org")]
+    [DataRow("localhost")]
+    [DataRow("test")]
+    [DataRow("http")]
+    [DataRow("https")]
+    public void IsValidUrl_ReturnsFalse_WhenUrlDoesNotContainDot(string url)
+    {
+        // Act
+        var result = UrlHelper.IsValidUrl(url);
+
+        // Assert
+        Assert.IsFalse(result);
+    }
+
+    [TestMethod]
+    [DataRow("https://www.example.com")]
+    [DataRow("http://test.org")]
+    [DataRow("ftp://files.example.net")]
+    [DataRow("file://localhost/path/to/file.txt")]
+    [DataRow("https://subdomain.example.co.uk")]
+    [DataRow("http://192.168.1.1")]
+    [DataRow("https://example.com:8080/path")]
+    public void IsValidUrl_ReturnsTrue_WhenUrlIsWellFormedAbsolute(string url)
+    {
+        // Act
+        var result = UrlHelper.IsValidUrl(url);
+
+        // Assert
+        Assert.IsTrue(result);
+    }
+
+    [TestMethod]
+    [DataRow("www.example.com")]
+    [DataRow("example.org")]
+    [DataRow("subdomain.test.net")]
+    [DataRow("github.com/user/repo")]
+    [DataRow("stackoverflow.com/questions/123")]
+    [DataRow("192.168.1.1")]
+    public void IsValidUrl_ReturnsTrue_WhenUrlIsValidWithoutProtocol(string url)
+    {
+        // Act
+        var result = UrlHelper.IsValidUrl(url);
+
+        // Assert
+        Assert.IsTrue(result);
+    }
+
+    [TestMethod]
+    [DataRow("not a url")]
+    [DataRow("invalid..url")]
+    [DataRow("http://")]
+    [DataRow("https://")]
+    [DataRow("://example.com")]
+    [DataRow("ht tp://example.com")]
+    public void IsValidUrl_ReturnsFalse_WhenUrlIsInvalid(string url)
+    {
+        // Act
+        var result = UrlHelper.IsValidUrl(url);
+
+        // Assert
+        Assert.IsFalse(result);
+    }
+
+    [TestMethod]
+    [DataRow("  https://www.example.com  ")]
+    [DataRow("\t\tgithub.com\t\t")]
+    [DataRow(" \r\n stackoverflow.com \r\n ")]
+    public void IsValidUrl_TrimsWhitespace_BeforeValidation(string url)
+    {
+        // Act
+        var result = UrlHelper.IsValidUrl(url);
+
+        // Assert
+        Assert.IsTrue(result);
+    }
+
+    [TestMethod]
+    [DataRow("tel:+1234567890")]
+    [DataRow("javascript:alert('test')")]
+    public void IsValidUrl_ReturnsFalse_ForNonWebProtocols(string url)
+    {
+        // Act
+        var result = UrlHelper.IsValidUrl(url);
+
+        // Assert
+        Assert.IsFalse(result);
+    }
+
+    [TestMethod]
+    [DataRow(null)]
+    [DataRow("")]
+    [DataRow("   ")]
+    public void NormalizeUrl_ReturnsInput_WhenUrlIsNullOrWhitespace(string url)
+    {
+        // Act
+        var result = UrlHelper.NormalizeUrl(url);
+
+        // Assert
+        Assert.AreEqual(url, result);
+    }
+
+    [TestMethod]
+    [DataRow("https://www.example.com")]
+    [DataRow("http://test.org")]
+    [DataRow("ftp://files.example.net")]
+    [DataRow("file://localhost/path/to/file.txt")]
+    public void NormalizeUrl_ReturnsUnchanged_WhenUrlIsAlreadyWellFormed(string url)
+    {
+        // Act
+        var result = UrlHelper.NormalizeUrl(url);
+
+        // Assert
+        Assert.AreEqual(url, result);
+    }
+
+    [TestMethod]
+    [DataRow("www.example.com", "https://www.example.com")]
+    [DataRow("example.org", "https://example.org")]
+    [DataRow("github.com/user/repo", "https://github.com/user/repo")]
+    [DataRow("stackoverflow.com/questions/123", "https://stackoverflow.com/questions/123")]
+    public void NormalizeUrl_AddsHttpsPrefix_WhenNoProtocolPresent(string input, string expected)
+    {
+        // Act
+        var result = UrlHelper.NormalizeUrl(input);
+
+        // Assert
+        Assert.AreEqual(expected, result);
+    }
+
+    [TestMethod]
+    [DataRow("  www.example.com  ", "https://www.example.com")]
+    [DataRow("\t\tgithub.com\t\t", "https://github.com")]
+    [DataRow(" \r\n stackoverflow.com \r\n ", "https://stackoverflow.com")]
+    public void NormalizeUrl_TrimsWhitespace_BeforeNormalizing(string input, string expected)
+    {
+        // Act
+        var result = UrlHelper.NormalizeUrl(input);
+
+        // Assert
+        Assert.AreEqual(expected, result);
+    }
+}
diff --git a/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.ClipboardHistory/Properties/AssemblyInfo.cs b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.ClipboardHistory/Properties/AssemblyInfo.cs
new file mode 100644
index 0000000000..fbc2b32860
--- /dev/null
+++ b/src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.ClipboardHistory/Properties/AssemblyInfo.cs
@@ -0,0 +1,7 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System.Runtime.CompilerServices;
+
+[assembly: InternalsVisibleTo("Microsoft.CmdPal.Ext.ClipboardHistory.UnitTests")]