diff --git a/README.md b/README.md
index e79f7ff..64575ca 100644
--- a/README.md
+++ b/README.md
@@ -8,5 +8,10 @@
   - add package: `yarn add monkey-react-scripts`
   - add `webpack.monkey.js` file
   - edit `package.json` file
+- add `webpack-visualizer-plugin`
+  - add package: `yarn add webpack-visualizer-plugin`
+  - add `./webpack-helpers/pluginsPatch.js` and use it in `webpack.monkey.js` 
+  - build project: `yarn build`
+  - check `build/stats.html` file
 
 [monkey-react-scripts]: https://github.com/monkey-patches/monkey-react-scripts
\ No newline at end of file
diff --git a/package.json b/package.json
index 8f3cd9b..218149a 100644
--- a/package.json
+++ b/package.json
@@ -6,7 +6,8 @@
     "monkey-react-scripts": "^0.1.0",
     "react": "^16.1.1",
     "react-dom": "^16.1.1",
-    "react-scripts": "1.0.17"
+    "react-scripts": "1.0.17",
+    "webpack-visualizer-plugin": "^0.1.11"
   },
   "scripts": {
     "start": "monkey-react-scripts start",
diff --git a/webpack-helpers/pluginsPatch.js b/webpack-helpers/pluginsPatch.js
new file mode 100644
index 0000000..c08ce33
--- /dev/null
+++ b/webpack-helpers/pluginsPatch.js
@@ -0,0 +1,7 @@
+const Visualizer = require('webpack-visualizer-plugin');
+
+module.exports.pluginsPatch = function pluginsPatch(webpackConfig, isDevelopment) {
+    if (!isDevelopment) {
+        webpackConfig.plugins.push(new Visualizer());
+    }
+};
diff --git a/webpack.monkey.js b/webpack.monkey.js
index abb5a42..0c50cfc 100644
--- a/webpack.monkey.js
+++ b/webpack.monkey.js
@@ -1,3 +1,5 @@
+const {pluginsPatch} = require('./webpack-helpers/pluginsPatch');
+
 module.exports = function (webpackConfig, isDevelopment) {
-    // mutate webpackConfig
+    pluginsPatch(webpackConfig, isDevelopment)
 };
\ No newline at end of file
diff --git a/yarn.lock b/yarn.lock
index 2c033ba..6f070c4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -268,6 +268,10 @@ ast-types-flow@0.0.7:
   version "0.0.7"
   resolved "https://registry.yarnpkg.com/ast-types-flow/-/ast-types-flow-0.0.7.tgz#f70b735c6bca1a5c9c22d982c3e39e7feba3bdad"
 
+ast-types@0.9.6:
+  version "0.9.6"
+  resolved "https://registry.yarnpkg.com/ast-types/-/ast-types-0.9.6.tgz#102c9e9e9005d3e7e3829bf0c4fa24ee862ee9b9"
+
 async-each@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/async-each/-/async-each-1.0.1.tgz#19d386a1d9edc6e7c1c85d388aedbcc56d33602d"
@@ -976,6 +980,10 @@ balanced-match@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"
 
+base62@^1.1.0:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/base62/-/base62-1.2.1.tgz#95a5a22350b0a557f3f081247fc2c398803ecb0c"
+
 base64-js@^1.0.2:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-1.2.1.tgz#a91947da1f4a516ea38e5b4ec0ec3773675e0886"
@@ -1443,10 +1451,28 @@ commander@2.11.x, commander@~2.11.0:
   version "2.11.0"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.11.0.tgz#157152fd1e7a6c8d98a5b715cf376df928004563"
 
+commander@^2.5.0:
+  version "2.12.1"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.12.1.tgz#468635c4168d06145b9323356d1da84d14ac4a7a"
+
 commondir@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/commondir/-/commondir-1.0.1.tgz#ddd800da0c66127393cca5950ea968a3aaf1253b"
 
+commoner@^0.10.1:
+  version "0.10.8"
+  resolved "https://registry.yarnpkg.com/commoner/-/commoner-0.10.8.tgz#34fc3672cd24393e8bb47e70caa0293811f4f2c5"
+  dependencies:
+    commander "^2.5.0"
+    detective "^4.3.1"
+    glob "^5.0.15"
+    graceful-fs "^4.1.2"
+    iconv-lite "^0.4.5"
+    mkdirp "^0.5.0"
+    private "^0.1.6"
+    q "^1.1.2"
+    recast "^0.11.17"
+
 compressible@~2.0.11:
   version "2.0.12"
   resolved "https://registry.yarnpkg.com/compressible/-/compressible-2.0.12.tgz#c59a5c99db76767e9876500e271ef63b3493bd66"
@@ -1738,6 +1764,10 @@ currently-unhandled@^0.4.1:
   dependencies:
     array-find-index "^1.0.1"
 
+d3@^3.5.6:
+  version "3.5.17"
+  resolved "https://registry.yarnpkg.com/d3/-/d3-3.5.17.tgz#bc46748004378b21a360c9fc7cf5231790762fb8"
+
 d@1:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/d/-/d-1.0.0.tgz#754bb5bfe55451da69a58b94d45f4c5b0462d58f"
@@ -1870,6 +1900,13 @@ detect-port-alt@1.1.3:
     address "^1.0.1"
     debug "^2.6.0"
 
+detective@^4.3.1:
+  version "4.5.0"
+  resolved "https://registry.yarnpkg.com/detective/-/detective-4.5.0.tgz#6e5a8c6b26e6c7a254b1c6b6d7490d98ec91edd1"
+  dependencies:
+    acorn "^4.0.3"
+    defined "^1.0.0"
+
 diff@^3.2.0:
   version "3.4.0"
   resolved "https://registry.yarnpkg.com/diff/-/diff-3.4.0.tgz#b1d85507daf3964828de54b37d0d73ba67dda56c"
@@ -2040,6 +2077,13 @@ entities@~1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/entities/-/entities-1.1.1.tgz#6e5c2d0a5621b5dadaecef80b90edfb5cd7772f0"
 
+envify@^3.0.0:
+  version "3.4.1"
+  resolved "https://registry.yarnpkg.com/envify/-/envify-3.4.1.tgz#d7122329e8df1688ba771b12501917c9ce5cbce8"
+  dependencies:
+    jstransform "^11.0.3"
+    through "~2.3.4"
+
 errno@^0.1.3, errno@^0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/errno/-/errno-0.1.4.tgz#b896e23a9e5e8ba33871fc996abd3635fc9a1c7d"
@@ -2280,11 +2324,15 @@ espree@^3.5.1:
     acorn "^5.2.1"
     acorn-jsx "^3.0.0"
 
+esprima-fb@^15001.1.0-dev-harmony-fb:
+  version "15001.1.0-dev-harmony-fb"
+  resolved "https://registry.yarnpkg.com/esprima-fb/-/esprima-fb-15001.1.0-dev-harmony-fb.tgz#30a947303c6b8d5e955bee2b99b1d233206a6901"
+
 esprima@^2.6.0:
   version "2.7.3"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581"
 
-esprima@^3.1.3:
+esprima@^3.1.3, esprima@~3.1.0:
   version "3.1.3"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-3.1.3.tgz#fdca51cee6133895e3c88d535ce49dbff62a4633"
 
@@ -2487,6 +2535,16 @@ fb-watchman@^2.0.0:
   dependencies:
     bser "^2.0.0"
 
+fbjs@^0.6.1:
+  version "0.6.1"
+  resolved "https://registry.yarnpkg.com/fbjs/-/fbjs-0.6.1.tgz#9636b7705f5ba9684d44b72f78321254afc860f7"
+  dependencies:
+    core-js "^1.0.0"
+    loose-envify "^1.0.0"
+    promise "^7.0.3"
+    ua-parser-js "^0.7.9"
+    whatwg-fetch "^0.9.0"
+
 fbjs@^0.8.16:
   version "0.8.16"
   resolved "https://registry.yarnpkg.com/fbjs/-/fbjs-0.8.16.tgz#5e67432f550dc41b572bf55847b8aca64e5337db"
@@ -2753,6 +2811,16 @@ glob-parent@^2.0.0:
   dependencies:
     is-glob "^2.0.0"
 
+glob@^5.0.15:
+  version "5.0.15"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-5.0.15.tgz#1bc936b9e02f4a603fcc222ecf7633d30b8b93b1"
+  dependencies:
+    inflight "^1.0.4"
+    inherits "2"
+    minimatch "2 || 3"
+    once "^1.3.0"
+    path-is-absolute "^1.0.0"
+
 glob@^7.0.3, glob@^7.0.5, glob@^7.1.1, glob@^7.1.2:
   version "7.1.2"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.2.tgz#c19c9df9a028702d678612384a6552404c636d15"
@@ -3085,7 +3153,7 @@ https-browserify@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/https-browserify/-/https-browserify-1.0.0.tgz#ec06c10e0a34c0f2faf199f7fd7fc78fffd03c73"
 
-iconv-lite@0.4.19, iconv-lite@^0.4.17, iconv-lite@~0.4.13:
+iconv-lite@0.4.19, iconv-lite@^0.4.17, iconv-lite@^0.4.5, iconv-lite@~0.4.13:
   version "0.4.19"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.19.tgz#f7468f60135f5e5dad3399c0a81be9a1603a082b"
 
@@ -3831,6 +3899,16 @@ jsprim@^1.2.2:
     json-schema "0.2.3"
     verror "1.10.0"
 
+jstransform@^11.0.3:
+  version "11.0.3"
+  resolved "https://registry.yarnpkg.com/jstransform/-/jstransform-11.0.3.tgz#09a78993e0ae4d4ef4487f6155a91f6190cb4223"
+  dependencies:
+    base62 "^1.1.0"
+    commoner "^0.10.1"
+    esprima-fb "^15001.1.0-dev-harmony-fb"
+    object-assign "^2.0.0"
+    source-map "^0.4.2"
+
 jsx-ast-utils@^1.4.0:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/jsx-ast-utils/-/jsx-ast-utils-1.4.1.tgz#3867213e8dd79bf1e8f2300c0cfc1efb182c0df1"
@@ -4159,18 +4237,18 @@ minimalistic-crypto-utils@^1.0.0, minimalistic-crypto-utils@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/minimalistic-crypto-utils/-/minimalistic-crypto-utils-1.0.1.tgz#f6c00c1c0b082246e5c4d99dfb8c7c083b2b582a"
 
+"minimatch@2 || 3", minimatch@^3.0.0, minimatch@^3.0.2, minimatch@^3.0.3, minimatch@^3.0.4:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
+  dependencies:
+    brace-expansion "^1.1.7"
+
 minimatch@3.0.3:
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.3.tgz#2a4e4090b96b2db06a9d7df01055a62a77c9b774"
   dependencies:
     brace-expansion "^1.0.0"
 
-minimatch@^3.0.0, minimatch@^3.0.2, minimatch@^3.0.3, minimatch@^3.0.4:
-  version "3.0.4"
-  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
-  dependencies:
-    brace-expansion "^1.1.7"
-
 minimist@0.0.8:
   version "0.0.8"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
@@ -4386,6 +4464,10 @@ object-assign@4.1.1, object-assign@^4.0.1, object-assign@^4.1.0, object-assign@^
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
 
+object-assign@^2.0.0:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-2.1.1.tgz#43c36e5d569ff8e4816c4efa8be02d26967c18aa"
+
 object-hash@^1.1.4:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/object-hash/-/object-hash-1.2.0.tgz#e96af0e96981996a1d47f88ead8f74f1ebc4422b"
@@ -4992,7 +5074,7 @@ pretty-format@^20.0.3:
     ansi-regex "^2.1.1"
     ansi-styles "^3.0.0"
 
-private@^0.1.6, private@^0.1.7:
+private@^0.1.6, private@^0.1.7, private@~0.1.5:
   version "0.1.8"
   resolved "https://registry.yarnpkg.com/private/-/private-0.1.8.tgz#2381edb3689f7a53d653190060fcf822d2f368ff"
 
@@ -5014,7 +5096,7 @@ promise@8.0.1:
   dependencies:
     asap "~2.0.3"
 
-promise@^7.1.1:
+promise@^7.0.3, promise@^7.1.1:
   version "7.3.1"
   resolved "https://registry.yarnpkg.com/promise/-/promise-7.3.1.tgz#064b72602b18f90f29192b8b1bc418ffd1ebd3bf"
   dependencies:
@@ -5191,6 +5273,10 @@ react-dev-utils@^4.2.1:
     strip-ansi "3.0.1"
     text-table "0.2.0"
 
+react-dom@^0.14.0:
+  version "0.14.9"
+  resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-0.14.9.tgz#05064a3dcf0fb1880a3b2bfc9d58c55d8d9f6293"
+
 react-dom@^16.1.1:
   version "16.1.1"
   resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-16.1.1.tgz#b2e331b6d752faf1a2d31399969399a41d8d45f8"
@@ -5247,6 +5333,13 @@ react-scripts@1.0.17:
   optionalDependencies:
     fsevents "1.1.2"
 
+react@^0.14.0:
+  version "0.14.9"
+  resolved "https://registry.yarnpkg.com/react/-/react-0.14.9.tgz#9110a6497c49d44ba1c0edd317aec29c2e0d91d1"
+  dependencies:
+    envify "^3.0.0"
+    fbjs "^0.6.1"
+
 react@^16.1.1:
   version "16.1.1"
   resolved "https://registry.yarnpkg.com/react/-/react-16.1.1.tgz#d5c4ef795507e3012282dd51261ff9c0e824fe1f"
@@ -5323,6 +5416,15 @@ readdirp@^2.0.0:
     readable-stream "^2.0.2"
     set-immediate-shim "^1.0.1"
 
+recast@^0.11.17:
+  version "0.11.23"
+  resolved "https://registry.yarnpkg.com/recast/-/recast-0.11.23.tgz#451fd3004ab1e4df9b4e4b66376b2a21912462d3"
+  dependencies:
+    ast-types "0.9.6"
+    esprima "~3.1.0"
+    private "~0.1.5"
+    source-map "~0.5.0"
+
 recursive-readdir@2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/recursive-readdir/-/recursive-readdir-2.2.1.tgz#90ef231d0778c5ce093c9a48d74e5c5422d13a99"
@@ -5796,11 +5898,11 @@ source-map-support@^0.4.15:
   dependencies:
     source-map "^0.5.6"
 
-source-map@0.5.x, source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.1, source-map@~0.5.6:
+source-map@0.5.x, source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.0, source-map@~0.5.1, source-map@~0.5.6:
   version "0.5.7"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.7.tgz#8a039d2d1021d22d1ea14c80d8ea468ba2ef3fcc"
 
-source-map@^0.4.4:
+source-map@^0.4.2, source-map@^0.4.4:
   version "0.4.4"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.4.4.tgz#eba4f5da9c0dc999de68032d8b4f76173652036b"
   dependencies:
@@ -6088,7 +6190,7 @@ throat@^3.0.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/throat/-/throat-3.2.0.tgz#50cb0670edbc40237b9e347d7e1f88e4620af836"
 
-through@^2.3.6:
+through@^2.3.6, through@~2.3.4:
   version "2.3.8"
   resolved "https://registry.yarnpkg.com/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
 
@@ -6450,6 +6552,15 @@ webpack-sources@^1.0.1:
     source-list-map "^2.0.0"
     source-map "~0.6.1"
 
+webpack-visualizer-plugin@^0.1.11:
+  version "0.1.11"
+  resolved "https://registry.yarnpkg.com/webpack-visualizer-plugin/-/webpack-visualizer-plugin-0.1.11.tgz#b8770ad86b4f652612c68b1b782253faf9f8a34e"
+  dependencies:
+    d3 "^3.5.6"
+    mkdirp "^0.5.1"
+    react "^0.14.0"
+    react-dom "^0.14.0"
+
 webpack@3.8.1:
   version "3.8.1"
   resolved "https://registry.yarnpkg.com/webpack/-/webpack-3.8.1.tgz#b16968a81100abe61608b0153c9159ef8bb2bd83"
@@ -6498,6 +6609,10 @@ whatwg-fetch@2.0.3, whatwg-fetch@>=0.10.0:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/whatwg-fetch/-/whatwg-fetch-2.0.3.tgz#9c84ec2dcf68187ff00bc64e1274b442176e1c84"
 
+whatwg-fetch@^0.9.0:
+  version "0.9.0"
+  resolved "https://registry.yarnpkg.com/whatwg-fetch/-/whatwg-fetch-0.9.0.tgz#0e3684c6cb9995b43efc9df03e4c365d95fd9cc0"
+
 whatwg-url@^4.3.0:
   version "4.8.0"
   resolved "https://registry.yarnpkg.com/whatwg-url/-/whatwg-url-4.8.0.tgz#d2981aa9148c1e00a41c5a6131166ab4683bbcc0"