diff --git a/linux.js b/linux.js
index 9b2a5de..88ec7f1 100644
--- a/linux.js
+++ b/linux.js
@@ -3,6 +3,8 @@ var fs = require('fs')
 var child = require('child_process')
 var mkdirp = require('mkdirp')
 var ncp = require('ncp').ncp
+var rimraf = require('rimraf')
+var asar = require('asar')
 
 module.exports = {
   createApp: function createApp (opts, cb, electronPath) {
@@ -43,6 +45,11 @@ module.exports = {
     function renameElectronBinary () {
       fs.rename(originalBinary, finalBinary, function electronRenamed (err) {
         if (err) return cb(err)
+        if (opts.asar) {
+          asarApp(cb)
+        } else {
+          cb()
+        }
       })
     }
 
@@ -66,6 +73,15 @@ module.exports = {
       return true
     }
 
+    function asarApp (cb) {
+      var src = path.join(finalDir, 'resources', 'app')
+      var dest = path.join(finalDir, 'resources', 'app.asar')
+      asar.createPackage(src, dest, function (err) {
+        if (err) return cb(err)
+        rimraf(src, cb)
+      })
+    }
+
     copyApp()
   }
 }
diff --git a/mac.js b/mac.js
index 338f05b..c62a33a 100644
--- a/mac.js
+++ b/mac.js
@@ -7,6 +7,7 @@ var plist = require('plist')
 var mkdirp = require('mkdirp')
 var rimraf = require('rimraf')
 var ncp = require('ncp').ncp
+var asar = require('asar')
 
 module.exports = {
   createApp: function createApp (opts, cb, electronPath) {
@@ -101,7 +102,14 @@ function buildMacApp (opts, cb, newApp) {
 
       fs.rename(newApp, finalPath, function moved (err) {
         if (err) return cb(err)
-        updateMacIcon()
+        if (opts.asar) {
+          asarApp(function (err) {
+            if (err) return cb(err)
+            updateMacIcon()
+          })
+        } else {
+          updateMacIcon()
+        }
       })
     }
 
@@ -116,5 +124,15 @@ function buildMacApp (opts, cb, newApp) {
         cb(err, finalPath)
       })
     }
+
+    function asarApp (cb) {
+      var finalPath = path.join(opts.out || process.cwd(), opts.name + '.app', 'Contents', 'Resources')
+      var src = path.join(finalPath, 'app')
+      var dest = path.join(finalPath, 'app.asar')
+      asar.createPackage(src, dest, function (err) {
+        if (err) return cb(err)
+        rimraf(src, cb)
+      })
+    }
   })
 }
diff --git a/package.json b/package.json
index dcf9e04..d859df7 100644
--- a/package.json
+++ b/package.json
@@ -17,6 +17,7 @@
   },
   "homepage": "https://github.com/maxogden/electron-packager",
   "dependencies": {
+    "asar": "^0.6.1",
     "minimist": "^1.1.1",
     "mkdirp": "^0.5.0",
     "ncp": "^2.0.0",