diff --git a/.gitignore b/.gitignore
index 1e8b30c1..38afc934 100644
--- a/.gitignore
+++ b/.gitignore
@@ -26,3 +26,4 @@ jspm_packages
 /dist
 /demo/build
 .tmp
+/coverage
diff --git a/.travis.yml b/.travis.yml
index f1f740e9..6dc541b9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,6 +6,7 @@ env:
   - GH_REF: github.com/Rebilly/ReDoc.git
   - secure: 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
   - secure: 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
+  - secure: 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
 cache:
   directories:
   - node_modules
diff --git a/karma.conf.js b/karma.conf.js
index b3fc5cd1..9fbba618 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -1,7 +1,37 @@
 module.exports = function (config) {
+    var travis = process.env.TRAVIS;
     config.set({
         frameworks: ['phantomjs-shim', 'jspm', 'mocha', 'chai', 'sinon'],
+        preprocessors: {
+          'lib/**/!(*spec).js': ['babel', 'coverage']
+        },
+        babelPreprocessor: {
+            options: {
+                sourceMap: 'inline',
+                "optional": [
+                  "runtime",
+                  "optimisation.modules.system",
+                  "es7.decorators",
+                  "es7.classProperties"
+                ]
+            },
+            sourceFileName: function(file) {
+              return file.originalPath;
+            }
+        },
 
+        coverageReporter: {
+            instrumenters: { isparta : require('isparta') },
+            instrumenter: {
+                'lib/**/!(*spec).js': 'isparta'
+            },
+            dir: 'coverage/',
+            reporters: [
+                {type: 'html'},
+                {type: 'text-summary'},
+                {type: 'lcov'}
+            ]
+        },
         client: {
           chai: {
             truncateThreshold: 0
@@ -27,7 +57,7 @@ module.exports = function (config) {
             '/jspm_packages/': '/base/jspm_packages/',
             '/node_modules/': '/base/node_modules/',
         },
-        reporters: ['mocha'],
+        reporters: travis ? ['mocha', 'coverage', 'coveralls'] : ['mocha', 'coverage'],
 
         browsers: ['PhantomJS'],
 
diff --git a/package.json b/package.json
index 40bc4da0..4bb9dcce 100644
--- a/package.json
+++ b/package.json
@@ -50,7 +50,7 @@
     }
   },
   "devDependencies": {
-    "babel": "^6.3.13",
+    "babel": "^5.8.34",
     "babel-eslint": "^4.1.3",
     "babel-polyfill": "^6.3.14",
     "browser-sync": "^2.9.8",
@@ -64,11 +64,15 @@
     "gulp-replace": "^0.5.4",
     "gulp-sass": "^2.1.0",
     "gulp-sourcemaps": "^1.6.0",
+    "isparta": "^4.0.0",
+    "istanbul": "github:gotwarlost/istanbul#source-map",
     "jshint-stylish": "^2.0.1",
     "jspm": "^0.16.11",
     "karma": "^0.13.15",
+    "karma-babel-preprocessor": "^5.2.2",
     "karma-chai": "github:randing89/karma-chai",
     "karma-chrome-launcher": "^0.2.2",
+    "karma-coverage": "github:douglasduteil/karma-coverage#next",
     "karma-jspm": "^2.0.2",
     "karma-mocha": "^0.2.1",
     "karma-mocha-reporter": "^1.1.3",