diff --git a/eng/emsdk.proj b/eng/emsdk.proj
index 36795ee078..e2490b7fcb 100644
--- a/eng/emsdk.proj
+++ b/eng/emsdk.proj
@@ -124,29 +124,42 @@
     <Delete Files="$(ArtifactsObjDir)upstream\emscripten\third_party\*.*" />
     <!--<Delete Files="$(ArtifactsObjDir)upstream\bin\wasm-ld.exe" />--> <!-- TODO: this is used by emcc but could be a symlink to ld.exe -->
 
+    <PropertyGroup>
+      <CacheSdkFilesDir>$(ArtifactsObjDir)\.cache-sdk\</CacheSdkFilesDir>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <CacheSdkFilesToMove Include="$(ArtifactsObjDir)upstream\emscripten\cache\**\*" />
+    </ItemGroup>
+
+    <!-- move the emscripten cache to a separate directory -->
+    <Move SourceFiles="@(CacheSdkFilesToMove)"
+          DestinationFiles="$(CacheSdkFilesDir)emscripten\cache\%(RecursiveDir)%(Filename)%(Extension)" />
+
     <ItemGroup>
       <!-- delete these libs from the cache to reduce windows nuget size context: https://github.com/dotnet/emsdk/pull/34#issuecomment-872691739 -->
-      <DeleteCacheFiles Include="$(ArtifactsObjDir)upstream\emscripten\cache\sysroot\lib\wasm32-emscripten\libasan_js.a" />
-      <DeleteCacheFiles Include="$(ArtifactsObjDir)upstream\emscripten\cache\sysroot\lib\wasm32-emscripten\libasan_rt-mt.a" />
-      <DeleteCacheFiles Include="$(ArtifactsObjDir)upstream\emscripten\cache\sysroot\lib\wasm32-emscripten\libasan_rt.a" />
-      <DeleteCacheFiles Include="$(ArtifactsObjDir)upstream\emscripten\cache\sysroot\lib\wasm32-emscripten\libc_rt_wasm-asan-optz.a" />
-      <DeleteCacheFiles Include="$(ArtifactsObjDir)upstream\emscripten\cache\sysroot\lib\wasm32-emscripten\libc_rt_wasm-asan.a" />
-      <DeleteCacheFiles Include="$(ArtifactsObjDir)upstream\emscripten\cache\sysroot\lib\wasm32-emscripten\libc-asan.a" />
-      <DeleteCacheFiles Include="$(ArtifactsObjDir)upstream\emscripten\cache\sysroot\lib\wasm32-emscripten\libc-mt-asan.a" />
-      <DeleteCacheFiles Include="$(ArtifactsObjDir)upstream\emscripten\cache\sysroot\lib\wasm32-emscripten\liblsan_common_rt-mt.a" />
-      <DeleteCacheFiles Include="$(ArtifactsObjDir)upstream\emscripten\cache\sysroot\lib\wasm32-emscripten\liblsan_common_rt.a" />
-      <DeleteCacheFiles Include="$(ArtifactsObjDir)upstream\emscripten\cache\sysroot\lib\wasm32-emscripten\liblsan_rt-mt.a" />
-      <DeleteCacheFiles Include="$(ArtifactsObjDir)upstream\emscripten\cache\sysroot\lib\wasm32-emscripten\liblsan_rt.a" />
-      <DeleteCacheFiles Include="$(ArtifactsObjDir)upstream\emscripten\cache\sysroot\lib\wasm32-emscripten\libprintf_long_double-asan.a" />
-      <DeleteCacheFiles Include="$(ArtifactsObjDir)upstream\emscripten\cache\sysroot\lib\wasm32-emscripten\libprintf_long_double-mt-asan.a" />
-      <DeleteCacheFiles Include="$(ArtifactsObjDir)upstream\emscripten\cache\sysroot\lib\wasm32-emscripten\libsanitizer_common_rt-mt.a" />
-      <DeleteCacheFiles Include="$(ArtifactsObjDir)upstream\emscripten\cache\sysroot\lib\wasm32-emscripten\libsanitizer_common_rt.a" />
-      <DeleteCacheFiles Include="$(ArtifactsObjDir)upstream\emscripten\cache\sysroot\lib\wasm32-emscripten\libubsan_minimal_rt_wasm-mt.a" />
-      <DeleteCacheFiles Include="$(ArtifactsObjDir)upstream\emscripten\cache\sysroot\lib\wasm32-emscripten\libubsan_minimal_rt_wasm.a" />
-      <DeleteCacheFiles Include="$(ArtifactsObjDir)upstream\emscripten\cache\sysroot\lib\wasm32-emscripten\libubsan_rt-mt.a" />
-      <DeleteCacheFiles Include="$(ArtifactsObjDir)upstream\emscripten\cache\sysroot\lib\wasm32-emscripten\libubsan_rt.a" />
-      <DeleteCacheFiles Include="$(ArtifactsObjDir)upstream\emscripten\cache\sysroot\lib\wasm32-emscripten\lib*-mt.a" />
-      <DeleteCacheFiles Include="$(ArtifactsObjDir)upstream\emscripten\cache\sysroot\lib\wasm32-emscripten\lib*-mt-*.a" />
+      <DeleteCacheFiles Include="$(CacheSdkFilesDir)emscripten\cache\sysroot\lib\wasm32-emscripten\libasan_js.a" />
+      <DeleteCacheFiles Include="$(CacheSdkFilesDir)emscripten\cache\sysroot\lib\wasm32-emscripten\libasan_rt-mt.a" />
+      <DeleteCacheFiles Include="$(CacheSdkFilesDir)emscripten\cache\sysroot\lib\wasm32-emscripten\libasan_rt.a" />
+      <DeleteCacheFiles Include="$(CacheSdkFilesDir)emscripten\cache\sysroot\lib\wasm32-emscripten\libc_rt_wasm-asan-optz.a" />
+      <DeleteCacheFiles Include="$(CacheSdkFilesDir)emscripten\cache\sysroot\lib\wasm32-emscripten\libc_rt_wasm-asan.a" />
+      <DeleteCacheFiles Include="$(CacheSdkFilesDir)emscripten\cache\sysroot\lib\wasm32-emscripten\libc-asan.a" />
+      <DeleteCacheFiles Include="$(CacheSdkFilesDir)emscripten\cache\sysroot\lib\wasm32-emscripten\libc-mt-asan.a" />
+      <DeleteCacheFiles Include="$(CacheSdkFilesDir)emscripten\cache\sysroot\lib\wasm32-emscripten\liblsan_common_rt-mt.a" />
+      <DeleteCacheFiles Include="$(CacheSdkFilesDir)emscripten\cache\sysroot\lib\wasm32-emscripten\liblsan_common_rt.a" />
+      <DeleteCacheFiles Include="$(CacheSdkFilesDir)emscripten\cache\sysroot\lib\wasm32-emscripten\liblsan_rt-mt.a" />
+      <DeleteCacheFiles Include="$(CacheSdkFilesDir)emscripten\cache\sysroot\lib\wasm32-emscripten\liblsan_rt.a" />
+      <DeleteCacheFiles Include="$(CacheSdkFilesDir)emscripten\cache\sysroot\lib\wasm32-emscripten\libprintf_long_double-asan.a" />
+      <DeleteCacheFiles Include="$(CacheSdkFilesDir)emscripten\cache\sysroot\lib\wasm32-emscripten\libprintf_long_double-mt-asan.a" />
+      <DeleteCacheFiles Include="$(CacheSdkFilesDir)emscripten\cache\sysroot\lib\wasm32-emscripten\libsanitizer_common_rt-mt.a" />
+      <DeleteCacheFiles Include="$(CacheSdkFilesDir)emscripten\cache\sysroot\lib\wasm32-emscripten\libsanitizer_common_rt.a" />
+      <DeleteCacheFiles Include="$(CacheSdkFilesDir)emscripten\cache\sysroot\lib\wasm32-emscripten\libubsan_minimal_rt_wasm-mt.a" />
+      <DeleteCacheFiles Include="$(CacheSdkFilesDir)emscripten\cache\sysroot\lib\wasm32-emscripten\libubsan_minimal_rt_wasm.a" />
+      <DeleteCacheFiles Include="$(CacheSdkFilesDir)emscripten\cache\sysroot\lib\wasm32-emscripten\libubsan_rt-mt.a" />
+      <DeleteCacheFiles Include="$(CacheSdkFilesDir)emscripten\cache\sysroot\lib\wasm32-emscripten\libubsan_rt.a" />
+      <!-- delete the non-pthreads Emscripten WebWorker API libs -->
+      <DeleteCacheFiles Include="$(CacheSdkFilesDir)emscripten\cache\sysroot\lib\wasm32-emscripten\lib*-ww.a" />
+      <DeleteCacheFiles Include="$(CacheSdkFilesDir)emscripten\cache\sysroot\lib\wasm32-emscripten\lib*-ww-*.a" />
     </ItemGroup>
     <Delete Files="@(DeleteCacheFiles)" />
 
@@ -165,6 +178,7 @@
     <MSBuild Projects="$(MSBuildThisFileDirectory)nuget\Microsoft.NET.Runtime.Emscripten.Node\Microsoft.NET.Runtime.Emscripten.Node.pkgproj" Targets="Build" />
     <MSBuild Projects="$(MSBuildThisFileDirectory)nuget\Microsoft.NET.Runtime.Emscripten.Python\Microsoft.NET.Runtime.Emscripten.Python.pkgproj" Targets="Build" Condition="'$(UsesPythonFromEmsdk)' == 'true'" />
     <MSBuild Projects="$(MSBuildThisFileDirectory)nuget\Microsoft.NET.Runtime.Emscripten.Sdk\Microsoft.NET.Runtime.Emscripten.Sdk.pkgproj" Targets="Build" />
+    <MSBuild Projects="$(MSBuildThisFileDirectory)nuget\Microsoft.NET.Runtime.Emscripten.Cache\Microsoft.NET.Runtime.Emscripten.Cache.pkgproj" Targets="Build" />
     <MSBuild Projects="$(MSBuildThisFileDirectory)nuget\Microsoft.NET.Workload.Emscripten.net6.Manifest\Microsoft.NET.Workload.Emscripten.net6.Manifest.pkgproj" Targets="Build" Condition="'$(AssetManifestOS)' == '' or '$(AssetManifestOS)' == 'win'" />
     <MSBuild Projects="$(MSBuildThisFileDirectory)nuget\Microsoft.NET.Workload.Emscripten.net7.Manifest\Microsoft.NET.Workload.Emscripten.net7.Manifest.pkgproj" Targets="Build" Condition="'$(AssetManifestOS)' == '' or '$(AssetManifestOS)' == 'win'" />
     <MSBuild Projects="$(MSBuildThisFileDirectory)nuget\Microsoft.NET.Runtime.Emscripten.Sdk.Internal\Microsoft.NET.Runtime.Emscripten.Sdk.Internal.pkgproj" Targets="Build" Condition="'$(OS)' == 'Windows_NT'" />
diff --git a/eng/nuget/Microsoft.NET.Runtime.Emscripten.Cache/Microsoft.NET.Runtime.Emscripten.Cache.pkgproj b/eng/nuget/Microsoft.NET.Runtime.Emscripten.Cache/Microsoft.NET.Runtime.Emscripten.Cache.pkgproj
new file mode 100644
index 0000000000..fd3f9d3953
--- /dev/null
+++ b/eng/nuget/Microsoft.NET.Runtime.Emscripten.Cache/Microsoft.NET.Runtime.Emscripten.Cache.pkgproj
@@ -0,0 +1,21 @@
+<Project>
+  <Import Project="$(RepoRoot)\Directory.Build.props" />
+  <Import Project="$(NuGetPackageRoot)\microsoft.dotnet.build.tasks.packaging\$(MicrosoftDotNetBuildTasksPackagingVersion)\build\Microsoft.DotNet.Build.Tasks.Packaging.props" />
+  <Import Project="$([MSBuild]::GetPathOfFileAbove(Microsoft.NET.Runtime.Emscripten.Common.props))" />
+  <Import Project="Microsoft.NET.Runtime.Emscripten.Cache.props" />
+
+  <Target Name="_PrepareForPack" BeforeTargets="GetPackageFiles" DependsOnTargets="GenerateUnixPermissionsFile" Returns="@(PackageFile)">
+    <!-- Override the id to include the Emscripten version -->
+    <PropertyGroup>
+      <Id>Microsoft.NET.Runtime.Emscripten.$(EmscriptenVersion).Cache.$(PackageRID)</Id>
+    </PropertyGroup>
+  </Target>
+
+  <PropertyGroup>
+    <PackageDescription>Contains Emscripten SDK system libraries cache for $(PackageRID).</PackageDescription>
+    <Description>Contains Emscripten SDK system libraries cache for $(PackageRID).</Description>
+  </PropertyGroup>
+
+  <Import Project="$(NuGetPackageRoot)\microsoft.dotnet.build.tasks.packaging\$(MicrosoftDotNetBuildTasksPackagingVersion)\build\Microsoft.DotNet.Build.Tasks.Packaging.targets" />
+  <Import Project="..\Directory.Build.targets" />
+</Project>
diff --git a/eng/nuget/Microsoft.NET.Runtime.Emscripten.Cache/Microsoft.NET.Runtime.Emscripten.Cache.props b/eng/nuget/Microsoft.NET.Runtime.Emscripten.Cache/Microsoft.NET.Runtime.Emscripten.Cache.props
new file mode 100644
index 0000000000..eee485708d
--- /dev/null
+++ b/eng/nuget/Microsoft.NET.Runtime.Emscripten.Cache/Microsoft.NET.Runtime.Emscripten.Cache.props
@@ -0,0 +1,11 @@
+<Project>
+  <PropertyGroup>
+    <ArtifactsDirToPackage>$(ArtifactsObjDir).cache-sdk\</ArtifactsDirToPackage>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <File Include="$(ArtifactsDirToPackage)**" TargetPath="tools\%(RecursiveDir)" SkipPackageFileCheck="true" />
+    <File Include="$(RepoRoot)eng\sdk_files\Emscripten.Cache.props" TargetPath="Sdk\Sdk.props" SkipPackageFileCheck="true" />
+    <File Include="$(RepoRoot)eng\sdk_files\Emscripten.Cache.targets" TargetPath="Sdk\Sdk.targets" SkipPackageFileCheck="true" />
+  </ItemGroup>
+</Project>
diff --git a/eng/nuget/Microsoft.NET.Workload.Emscripten.net7.Manifest/WorkloadManifest.json.in b/eng/nuget/Microsoft.NET.Workload.Emscripten.net7.Manifest/WorkloadManifest.json.in
index a3ba7c4d2c..d19720689d 100644
--- a/eng/nuget/Microsoft.NET.Workload.Emscripten.net7.Manifest/WorkloadManifest.json.in
+++ b/eng/nuget/Microsoft.NET.Workload.Emscripten.net7.Manifest/WorkloadManifest.json.in
@@ -7,6 +7,7 @@
       "packs": [
         "Microsoft.NET.Runtime.Emscripten.Node.net7",
         "Microsoft.NET.Runtime.Emscripten.Python.net7",
+        "Microsoft.NET.Runtime.Emscripten.Cache.net7",
         "Microsoft.NET.Runtime.Emscripten.Sdk.net7"
       ],
       "platforms": [ "win-x64", "linux-x64", "osx-x64", "osx-arm64" ]
@@ -32,6 +33,16 @@
         "osx-arm64": "Microsoft.NET.Runtime.Emscripten.${EmscriptenVersion}.Python.osx-x64"
       }
     },
+    "Microsoft.NET.Runtime.Emscripten.Cache.net7" : {
+      "kind": "Sdk",
+      "version": "${PackageVersion}",
+      "alias-to": {
+        "win-x64": "Microsoft.NET.Runtime.Emscripten.${EmscriptenVersion}.Cache.win-x64",
+        "linux-x64": "Microsoft.NET.Runtime.Emscripten.${EmscriptenVersion}.Cache.linux-x64",
+        "osx-x64": "Microsoft.NET.Runtime.Emscripten.${EmscriptenVersion}.Cache.osx-x64",
+        "osx-arm64": "Microsoft.NET.Runtime.Emscripten.${EmscriptenVersion}.Cache.osx-x64"
+      }
+    },
     "Microsoft.NET.Runtime.Emscripten.Sdk.net7" : {
       "kind": "Sdk",
       "version": "${PackageVersion}",
diff --git a/eng/nuget/Microsoft.NET.Workload.Emscripten.net7.Manifest/WorkloadManifest.targets b/eng/nuget/Microsoft.NET.Workload.Emscripten.net7.Manifest/WorkloadManifest.targets
index 8d5acd6b8b..3a2dbbd523 100644
--- a/eng/nuget/Microsoft.NET.Workload.Emscripten.net7.Manifest/WorkloadManifest.targets
+++ b/eng/nuget/Microsoft.NET.Workload.Emscripten.net7.Manifest/WorkloadManifest.targets
@@ -22,5 +22,7 @@
     <Import Project="Sdk.props" Sdk="Microsoft.NET.Runtime.Emscripten.Python.net7" Condition="!$([MSBuild]::IsOsPlatform('Linux'))" />
     <Import Project="Sdk.props" Sdk="Microsoft.NET.Runtime.Emscripten.Node.net7" />
     <Import Project="Sdk.props" Sdk="Microsoft.NET.Runtime.Emscripten.Sdk.net7" />
+    <Import Project="Sdk.props" Sdk="Microsoft.NET.Runtime.Emscripten.Cache.net7" />
+    <Import Project="Sdk.targets" Sdk="Microsoft.NET.Runtime.Emscripten.Cache.net7" />
   </ImportGroup>
 </Project>
diff --git a/eng/sdk_files/Emscripten.Cache.props b/eng/sdk_files/Emscripten.Cache.props
new file mode 100644
index 0000000000..f993940ac6
--- /dev/null
+++ b/eng/sdk_files/Emscripten.Cache.props
@@ -0,0 +1,7 @@
+<Project>
+  <PropertyGroup>
+    <EmscriptenCacheSdkToolsPath>$(MSBuildThisFileDirectory)..\tools\</EmscriptenCacheSdkToolsPath>
+    <EmscriptenCacheSdkCacheDir>$([MSBuild]::NormalizeDirectory('$(EmscriptenCacheSdkToolsPath)', 'emscripten', 'cache'))</EmscriptenCacheSdkCacheDir>
+  </PropertyGroup>
+
+</Project>
diff --git a/eng/sdk_files/Emscripten.Cache.targets b/eng/sdk_files/Emscripten.Cache.targets
new file mode 100644
index 0000000000..071a641e66
--- /dev/null
+++ b/eng/sdk_files/Emscripten.Cache.targets
@@ -0,0 +1,7 @@
+<Project>
+  <Target Name="_EmscriptenCacheSdkOverrideWasmCachePath" BeforeTargets="_PrepareForWasmBuildNative" Condition="'$(WasmBuildNative)' == 'true'">
+    <PropertyGroup>
+      <WasmCachePath Condition="'$(WasmCachePath)' == ''">$(EmscriptenCacheSdkCacheDir)</WasmCachePath>
+    </PropertyGroup>
+  </Target>
+</Project>