diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5a6612d..406ba28 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,5 +3,10 @@ All notable changes to the "translator" extension will be documented in this fil
 
 Check [Keep a Changelog](http://keepachangelog.com/) for recommendations on how to structure this file.
 
+## [1.1.0] - 2017-12-26
+- add google translate API (default)
+- change shortcut from `cmd + alt + t` to `cmd + shift + t` on MacOS
+- change shortcut from `ctrl + alt + t` to `ctrl + shift + t` on Window
+
 ## [1.0.0] - 2017-12-26
 - Initial release
\ No newline at end of file
diff --git a/README.md b/README.md
index 003b002..ec6216d 100644
--- a/README.md
+++ b/README.md
@@ -12,15 +12,16 @@ A vscode plugin for Koreans that can help you write classes, variables, and func
   ![korToEn](https://github.com/sculove/translator/raw/master/images/korToEn.gif)
 
 > ### Shortcuts
-> - MacOS: `Cmd + Alt + t`
-> - Window: `Ctrl + Alt + t`
+> - MacOS: `Cmd + shift + t`
+> - Window: `Ctrl + shift + t`
 
+## Translate API
 
-## Requirements
-
-You need NAVER API key. I have a plan that add some other `translate API` next time.  
-NAVER API 키가 필요합니다. 향후 다른 `번역 API`도 추가할 예정입니다.
+You can use limited Google Translate API. (default)   
+제한된 Google 번역 API를 사용할 수 있습니다. (default)
 
+If you want to use Papago Translate API of NAVER, you need NAVER API key.  
+만약 네이버의 `파파고 API`를 사용하고자 한다면, NAVER API 키가 필요합니다.
 
 ### Naver API
 - Free up to 10,000 per day  
@@ -31,14 +32,13 @@ NAVER API 키가 필요합니다. 향후 다른 `번역 API`도 추가할 예정
 
 ## Extension Settings
 
+* `translator.type`: translate API type (google, naver). default is google
+* `translator.rules`: suggest prefix rules
 * `translator.naver.clientId`: Naver API ClientID
 * `translator.naver.clientSecret`: Naver API clientSecret
-* `translator.rules`: suggest prefix rules
 
 ```js
   // ...
-  "translator.naver.clientId": "Naver API clientID",
-  "translator.naver.clientSecret": "Naver API clientSecret",
   "translator.rules": [
         {
             "prefix": "create",
@@ -58,11 +58,19 @@ NAVER API 키가 필요합니다. 향후 다른 `번역 API`도 추가할 예정
         }
         // ...
     ]
+    "translator.naver.clientId": "Naver API clientID",
+    "translator.naver.clientSecret": "Naver API clientSecret",
 ```
 
 
 ## Release Notes
 
+### 1.1.0
+
+- add google translate API (default)
+- change shortcut from `cmd + alt + t` to `cmd + shift + t` on MacOS
+- change shortcut from `ctrl + alt + t` to `ctrl + shift + t` on Window
+
 ### 1.0.0
 
 Initial release of Translator.
diff --git a/package-lock.json b/package-lock.json
index 7a190af..cdd5be7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
     "name": "translator",
-    "version": "0.0.1",
+    "version": "1.0.0",
     "lockfileVersion": 1,
     "requires": true,
     "dependencies": {
@@ -599,11 +599,6 @@
             "integrity": "sha1-+8cfDEGt6zf5bFd60e1C2P2sypE=",
             "dev": true
         },
-        "formdata-polyfill": {
-            "version": "3.0.9",
-            "resolved": "https://registry.npmjs.org/formdata-polyfill/-/formdata-polyfill-3.0.9.tgz",
-            "integrity": "sha512-KKTifs9ipLF+y6HUdL1l7njs1he2z8QhX7te+IlX2zm7ItNlaMqnXi2GfJNq8xHFbZ1ZOHMvSBWLYs8jR3XCkA=="
-        },
         "from": {
             "version": "0.1.7",
             "resolved": "https://registry.npmjs.org/from/-/from-0.1.7.tgz",
diff --git a/package.json b/package.json
index 3262a34..59895eb 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
     "name": "translator",
     "displayName": "translator",
     "description": "translate for Korean",
-    "version": "1.0.0",
+    "version": "1.1.0",
     "publisher": "sculove",
     "engines": {
         "vscode": "^1.18.0"
@@ -38,13 +38,14 @@
                     "translator.type": {
                         "type": "string",
                         "enum": [
+                            "google",
                             "naver"
                         ],
-                        "default": "naver",
-                        "description": "사용할 번역 API 를 등록해주세요 (naver)"
+                        "default": "google",
+                        "description": "사용할 번역 API 를 등록해주세요 (google, naver)"
                     },
                     "translator.naver": {
-                        "type": "object | null",
+                        "type": "object",
                         "default": {
                             "clientId": null,
                             "clientSecret": null
@@ -181,8 +182,8 @@
         "keybindings": [
             {
                 "command": "extension.translateForKorean",
-                "key": "ctrl+alt+t",
-                "mac": "cmd+alt+t",
+                "key": "ctrl+shift+t",
+                "mac": "cmd+shift+t",
                 "when": "editorHasSelection"
             }
         ]
diff --git a/src/translator.ts b/src/translator.ts
index ebb9cdf..30a215c 100644
--- a/src/translator.ts
+++ b/src/translator.ts
@@ -38,8 +38,8 @@ export interface TranslatorConfig {
 export class Translator {
   public get(text: string): Observable<TranslatorResult> {
     const config = workspace.getConfiguration("translator");
-    const hasProperty = Object.keys(config[config.type]).every(v => !!config[config.type][v]);
-    
+    const apiConfig = config[config.type];
+    const hasProperty = !apiConfig || Object.keys(apiConfig).every(v => !!apiConfig[v]);
     if (hasProperty) {
       const isKo = /[ㄱ-ㅎ|ㅏ-ㅣ|가-힣]/.test(text);
       
@@ -78,6 +78,24 @@ export class Translator {
     }
   }
 
+  private googleAPI(text: string, config, isKo): Observable<TranslatorResult> {
+    const source = isKo ? "ko" : "en";
+    const target = isKo ? "en" : "ko";
+    const url = `https://translate.google.com/translate_a/single?client=gtx&sl=${source}&tl=${target}&dt=t&dt=bd&ie=UTF-8&oe=UTF-8&dj=1&source=icon&q=${encodeURI(text)}`;
+
+    return from(fetch(url))
+      .pipe(
+        filter((res: Response) => res.ok),
+        mergeMap((res: Response) => from(res.json())),
+        map(msg => ({
+            source,
+            target,
+            translatedText: msg.sentences.map(v => v.trans).join("")
+          })
+        ),
+      );
+  }
+
   private naverAPI(text: string, config, isKo): Observable<TranslatorResult>  {
     const body = {
       source: isKo ? "ko" : "en",