diff --git a/src/Microsoft.AspNet.SpaServices/npm/aspnet-webpack-react/.gitignore b/src/Microsoft.AspNet.SpaServices/npm/aspnet-webpack-react/.gitignore
new file mode 100644
index 0000000000..a1df9a5c2b
--- /dev/null
+++ b/src/Microsoft.AspNet.SpaServices/npm/aspnet-webpack-react/.gitignore
@@ -0,0 +1,4 @@
+/typings/
+/node_modules/
+/*.js
+/*.d.ts
diff --git a/src/Microsoft.AspNet.SpaServices/npm/aspnet-webpack-react/.npmignore b/src/Microsoft.AspNet.SpaServices/npm/aspnet-webpack-react/.npmignore
new file mode 100644
index 0000000000..858cdc4c3b
--- /dev/null
+++ b/src/Microsoft.AspNet.SpaServices/npm/aspnet-webpack-react/.npmignore
@@ -0,0 +1,3 @@
+!/*.js
+!/*.d.ts
+/typings/
diff --git a/src/Microsoft.AspNet.SpaServices/npm/aspnet-webpack-react/LICENSE.txt b/src/Microsoft.AspNet.SpaServices/npm/aspnet-webpack-react/LICENSE.txt
new file mode 100644
index 0000000000..0bdc1962b6
--- /dev/null
+++ b/src/Microsoft.AspNet.SpaServices/npm/aspnet-webpack-react/LICENSE.txt
@@ -0,0 +1,12 @@
+Copyright (c) .NET Foundation. All rights reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License"); you may not use
+these files except in compliance with the License. You may obtain a copy of the
+License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software distributed
+under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+CONDITIONS OF ANY KIND, either express or implied. See the License for the
+specific language governing permissions and limitations under the License.
diff --git a/src/Microsoft.AspNet.SpaServices/npm/aspnet-webpack-react/README.md b/src/Microsoft.AspNet.SpaServices/npm/aspnet-webpack-react/README.md
new file mode 100644
index 0000000000..e459de765e
--- /dev/null
+++ b/src/Microsoft.AspNet.SpaServices/npm/aspnet-webpack-react/README.md
@@ -0,0 +1,6 @@
+# Not for general use
+
+This NPM package is an internal implementation detail of the `Microsoft.AspNet.SpaServices` NuGet package.
+
+You should not use this package directly in your own applications, because it is not supported, and there are no
+guarantees about how its APIs will change in the future.
diff --git a/src/Microsoft.AspNet.SpaServices/npm/aspnet-webpack-react/package.json b/src/Microsoft.AspNet.SpaServices/npm/aspnet-webpack-react/package.json
new file mode 100644
index 0000000000..8d88e0422d
--- /dev/null
+++ b/src/Microsoft.AspNet.SpaServices/npm/aspnet-webpack-react/package.json
@@ -0,0 +1,21 @@
+{
+  "name": "aspnet-webpack-react",
+  "version": "1.0.0",
+  "description": "Helpers for using Webpack with React in ASP.NET projects. Works in conjunction with the Microsoft.AspNet.SpaServices NuGet package.",
+  "main": "index.js",
+  "scripts": {
+    "prepublish": "tsd update && tsc && echo 'Finished building NPM package \"aspnet-webpack-react\"'",
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "Microsoft",
+  "license": "Apache-2.0",
+  "dependencies": {
+    "babel-core": "^6.7.2",
+    "babel-loader": "^6.2.4",
+    "babel-plugin-react-transform": "^2.0.2",
+    "babel-preset-es2015": "^6.6.0",
+    "babel-preset-react": "^6.5.0",
+    "react": "^0.14.7",
+    "webpack": "^1.12.14"
+  }
+}
diff --git a/src/Microsoft.AspNet.SpaServices/npm/aspnet-webpack-react/src/HotModuleReplacement.ts b/src/Microsoft.AspNet.SpaServices/npm/aspnet-webpack-react/src/HotModuleReplacement.ts
new file mode 100644
index 0000000000..4756e4cd92
--- /dev/null
+++ b/src/Microsoft.AspNet.SpaServices/npm/aspnet-webpack-react/src/HotModuleReplacement.ts
@@ -0,0 +1,33 @@
+import * as webpack from 'webpack';
+
+export function addReactHotModuleReplacementBabelTransform(webpackConfig: webpack.Configuration) {
+    webpackConfig.module.loaders.forEach(loaderConfig => {
+        if (loaderConfig.loader && loaderConfig.loader.match(/\bbabel-loader\b/)) {
+            // Ensure the babel-loader options includes a 'query'
+            const query = loaderConfig.query = loaderConfig.query || {};
+
+            // Ensure Babel plugins includes 'react-transform'
+            const plugins = query['plugins'] = query['plugins'] || [];
+            const hasReactTransform = plugins.some(p => p && p[0] === 'react-transform');
+            if (!hasReactTransform) {
+                plugins.push(['react-transform', {}]);
+            }
+
+            // Ensure 'react-transform' plugin is configured to use 'react-transform-hmr'
+            plugins.forEach(pluginConfig => {
+                if (pluginConfig && pluginConfig[0] === 'react-transform') {
+                    const pluginOpts = pluginConfig[1] = pluginConfig[1] || {};
+                    const transforms = pluginOpts.transforms = pluginOpts.transforms || [];
+                    const hasReactTransformHmr = transforms.some(t => t.transform === 'react-transform-hmr');
+                    if (!hasReactTransformHmr) {
+                        transforms.push({
+                            transform: 'react-transform-hmr',
+                            imports: ['react'],
+                            locals: ['module'] // Important for Webpack HMR
+                        });
+                    }
+                }
+            });
+        }
+    });
+}
diff --git a/src/Microsoft.AspNet.SpaServices/npm/aspnet-webpack-react/src/index.ts b/src/Microsoft.AspNet.SpaServices/npm/aspnet-webpack-react/src/index.ts
new file mode 100644
index 0000000000..34dab6025b
--- /dev/null
+++ b/src/Microsoft.AspNet.SpaServices/npm/aspnet-webpack-react/src/index.ts
@@ -0,0 +1 @@
+export { addReactHotModuleReplacementBabelTransform } from './HotModuleReplacement';
diff --git a/src/Microsoft.AspNet.SpaServices/npm/aspnet-webpack-react/tsconfig.json b/src/Microsoft.AspNet.SpaServices/npm/aspnet-webpack-react/tsconfig.json
new file mode 100644
index 0000000000..de676e91e5
--- /dev/null
+++ b/src/Microsoft.AspNet.SpaServices/npm/aspnet-webpack-react/tsconfig.json
@@ -0,0 +1,12 @@
+{
+  "compilerOptions": {
+    "moduleResolution": "node",
+    "module": "commonjs",
+    "target": "es5",
+    "declaration": true,
+    "outDir": "."
+  },
+  "exclude": [
+    "node_modules"
+  ]
+}
diff --git a/src/Microsoft.AspNet.SpaServices/npm/aspnet-webpack-react/tsd.json b/src/Microsoft.AspNet.SpaServices/npm/aspnet-webpack-react/tsd.json
new file mode 100644
index 0000000000..e9e4f33c94
--- /dev/null
+++ b/src/Microsoft.AspNet.SpaServices/npm/aspnet-webpack-react/tsd.json
@@ -0,0 +1,18 @@
+{
+  "version": "v4",
+  "repo": "borisyankov/DefinitelyTyped",
+  "ref": "master",
+  "path": "typings",
+  "bundle": "typings/tsd.d.ts",
+  "installed": {
+    "source-map/source-map.d.ts": {
+      "commit": "0144ad5a74053f2292424847259c4c8e1d0fecaa"
+    },
+    "webpack/webpack.d.ts": {
+      "commit": "0144ad5a74053f2292424847259c4c8e1d0fecaa"
+    },
+    "uglify-js/uglify-js.d.ts": {
+      "commit": "0144ad5a74053f2292424847259c4c8e1d0fecaa"
+    }
+  }
+}