diff --git a/.eslintrc.json b/.eslintrc.json
new file mode 100644
index 00000000..3edb1b89
--- /dev/null
+++ b/.eslintrc.json
@@ -0,0 +1,23 @@
+{
+	"root": true,
+	"extends": [
+		"wikimedia/client",
+		"wikimedia/jquery"
+	],
+	"globals": {
+		"ve": true,
+		"VisualEditorSupportCheck": false,
+		"OO": false,
+		"unicodeJS": false,
+		"RangeFix": false,
+		"Papa": false,
+		"mw": false,
+		"require": false
+	},
+	"rules": {
+		"no-jquery/no-hide": "error",
+		"no-jquery/no-show": "error",
+		"no-jquery/no-toggle": "error",
+		"max-len": "off"
+	}
+}
diff --git a/.gitignore b/.gitignore
index 4489bce0..0071d7df 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 /node_modules/
 /vendor/
 /composer.lock
+.eslintcache
 
 # Editors
 *.kate-swp
diff --git a/Gruntfile.js b/Gruntfile.js
index b5e41a57..c98c1aae 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -4,16 +4,27 @@
  * @package CiteThisPage
  */
 
-/*jshint node:true */
+/* eslint-env node, es6 */
 module.exports = function ( grunt ) {
-	grunt.loadNpmTasks( 'grunt-jsonlint' );
+	var conf = grunt.file.readJSON( 'extension.json' );
+
 	grunt.loadNpmTasks( 'grunt-banana-checker' );
+	grunt.loadNpmTasks( 'grunt-eslint' );
+	grunt.loadNpmTasks( 'grunt-jsonlint' );
 	grunt.loadNpmTasks( 'grunt-stylelint' );
 
 	grunt.initConfig( {
-		banana: {
-			all: ["i18n/"]
+		eslint: {
+			options: {
+				reportUnusedDisableDirectives: true,
+				cache: true
+			},
+			all: [
+				'**/*.js',
+				'!{vendor,node_modules}/**'
+			]
 		},
+		banana: conf.MessagesDirs,
 		jsonlint: {
 			all: [
 				'**/*.json',
@@ -30,6 +41,6 @@ module.exports = function ( grunt ) {
 		}
 	} );
 
-	grunt.registerTask( 'test', [ 'jsonlint', 'banana', 'stylelint' ] );
+	grunt.registerTask( 'test', [ 'eslint', 'jsonlint', 'banana', 'stylelint' ] );
 	grunt.registerTask( 'default', 'test' );
 };
diff --git a/package.json b/package.json
index c9124d82..b6515601 100644
--- a/package.json
+++ b/package.json
@@ -7,9 +7,11 @@
 		"test": "grunt test"
 	},
 	"devDependencies": {
+		"eslint-config-wikimedia": "0.11.0",
 		"grunt": "1.0.3",
 		"grunt-banana-checker": "0.6.0",
 		"grunt-jsonlint": "1.1.0",
+		"grunt-eslint": "21.0.0",
 		"grunt-stylelint": "0.10.1",
 		"stylelint-config-wikimedia": "0.5.0"
 	}