diff --git a/README.md b/README.md
index 5a5ddb6..e76d5f8 100755
--- a/README.md
+++ b/README.md
@@ -56,7 +56,7 @@ npm install -g gcal
 
 ## Authentication
 
-Authorization and authentication is done with OAuth 2.0. 
+Authorization and authentication is done with OAuth 2.0.
 
 Ok, this will take only 2 minutes:
 
@@ -81,6 +81,8 @@ $ gcal generateUrl
 
 The page will prompt you to authorize access, follow the instructions.
 
+If you add the `-o` option to the command, your default browser will be opened automatically with the consent page.
+
 #### 3) Get the token!
 
 With the code we got through the authorization page, we can obtain a token and store it in our machine.
@@ -89,7 +91,7 @@ With the code we got through the authorization page, we can obtain a token and s
 $ gcal storeToken <code>
 ```
 
-([By default](#overwriting-default-config) the token is stored in your home folder under the name `calendar_api_token.json`). 
+([By default](#overwriting-default-config) the token is stored in your home folder under the name `calendar_api_token.json`).
 
 NOTE: The token will expiry after one hour, but a `refresh_token` is included as well, allowing the app to refresh automatically the token each time it's used.
 
diff --git a/index.js b/index.js
index ee6e828..f7f2211 100755
--- a/index.js
+++ b/index.js
@@ -11,6 +11,7 @@ const chalk = require('chalk');
 const moment = require('moment');
 const conf = require('./conf');
 const help = require('./help');
+const opn = require('opn');
 
 /**
  * Get absolute path
@@ -64,13 +65,16 @@ const getClient = async () => {
  * Generate consent page URL
  * @returns {Promise}
  */
-const generateUrl = async () => {
+const generateUrl = async (openInBrowser) => {
   const oauth2Client = getOauth2Client();
   const authUrl = oauth2Client.generateAuthUrl({
     access_type: 'offline',
     scope: conf.SCOPES
   });
   console.log(authUrl);
+  if (openInBrowser) {
+    opn(authUrl, { wait: 0 });
+  }
 };
 
 /**
@@ -185,7 +189,7 @@ const insert = async (naturalInfo, options) => {
         date: moment(date).format('YYYY-MM-DD')
       };
       event.end = {
-        date: duration ? 
+        date: duration ?
           moment(date).add(duration.slice(0, -1), duration.slice(-1)).format('YYYY-MM-DD') :
           moment(date).add(1, 'd').format('YYYY-MM-DD')
       };
@@ -195,7 +199,7 @@ const insert = async (naturalInfo, options) => {
         dateTime: moment(dateTime).format()
       };
       event.end = {
-        dateTime: duration ? 
+        dateTime: duration ?
           moment(dateTime).add(duration.slice(0, -1), duration.slice(-1)).format() :
           moment(dateTime).add(conf.EVENT_DURATION, 'm').format()
       };
@@ -249,7 +253,7 @@ console.log(argv);
   }
   switch (command) {
     case 'generateUrl': {
-      await generateUrl();
+      await generateUrl(argv.o);
       break;
     }
     case 'storeToken': {
diff --git a/package-lock.json b/package-lock.json
index c77143e..9853701 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2,6 +2,7 @@
   "name": "gcal",
   "version": "1.0.2",
   "lockfileVersion": 1,
+  "requires": true,
   "dependencies": {
     "acorn": {
       "version": "5.1.2",
@@ -14,6 +15,9 @@
       "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-3.0.1.tgz",
       "integrity": "sha1-r9+UiPsezvyDSPb7IvRk4ypYs2s=",
       "dev": true,
+      "requires": {
+        "acorn": "3.3.0"
+      },
       "dependencies": {
         "acorn": {
           "version": "3.3.0",
@@ -26,7 +30,11 @@
     "ajv": {
       "version": "4.11.8",
       "resolved": "https://registry.npmjs.org/ajv/-/ajv-4.11.8.tgz",
-      "integrity": "sha1-gv+wKynmYq5TvcIK8VlHcGc5xTY="
+      "integrity": "sha1-gv+wKynmYq5TvcIK8VlHcGc5xTY=",
+      "requires": {
+        "co": "4.6.0",
+        "json-stable-stringify": "1.0.1"
+      }
     },
     "ajv-keywords": {
       "version": "1.5.1",
@@ -49,19 +57,28 @@
     "ansi-styles": {
       "version": "3.2.0",
       "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.0.tgz",
-      "integrity": "sha512-NnSOmMEYtVR2JVMIGTzynRkkaxtiq1xnFBcdQD/DnNCYPoEPsVJhM98BDyaoNOQIi7p4okdi3E27eN7GQbsUug=="
+      "integrity": "sha512-NnSOmMEYtVR2JVMIGTzynRkkaxtiq1xnFBcdQD/DnNCYPoEPsVJhM98BDyaoNOQIi7p4okdi3E27eN7GQbsUug==",
+      "requires": {
+        "color-convert": "1.9.0"
+      }
     },
     "argparse": {
       "version": "1.0.9",
       "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.9.tgz",
       "integrity": "sha1-c9g7wmP4bpf4zE9rrhsOkKfSLIY=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "sprintf-js": "1.0.3"
+      }
     },
     "array-union": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/array-union/-/array-union-1.0.2.tgz",
       "integrity": "sha1-mjRBDk9OPaI96jdb5b5w8kd47Dk=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "array-uniq": "1.0.3"
+      }
     },
     "array-uniq": {
       "version": "1.0.3",
@@ -88,7 +105,10 @@
     "async": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/async/-/async-2.3.0.tgz",
-      "integrity": "sha1-EBPRBRBH3TIP4k5JTVxm7K9hR9k="
+      "integrity": "sha1-EBPRBRBH3TIP4k5JTVxm7K9hR9k=",
+      "requires": {
+        "lodash": "4.17.4"
+      }
     },
     "asynckit": {
       "version": "0.4.0",
@@ -110,6 +130,11 @@
       "resolved": "https://registry.npmjs.org/babel-code-frame/-/babel-code-frame-6.26.0.tgz",
       "integrity": "sha1-Y/1D99weO7fONZR9uP42mj9Yx0s=",
       "dev": true,
+      "requires": {
+        "chalk": "1.1.3",
+        "esutils": "2.0.2",
+        "js-tokens": "3.0.2"
+      },
       "dependencies": {
         "ansi-styles": {
           "version": "2.2.1",
@@ -121,13 +146,23 @@
           "version": "1.1.3",
           "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
           "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
-          "dev": true
+          "dev": true,
+          "requires": {
+            "ansi-styles": "2.2.1",
+            "escape-string-regexp": "1.0.5",
+            "has-ansi": "2.0.0",
+            "strip-ansi": "3.0.1",
+            "supports-color": "2.0.0"
+          }
         },
         "strip-ansi": {
           "version": "3.0.1",
           "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
           "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
-          "dev": true
+          "dev": true,
+          "requires": {
+            "ansi-regex": "2.1.1"
+          }
         },
         "supports-color": {
           "version": "2.0.0",
@@ -152,18 +187,28 @@
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.1.tgz",
       "integrity": "sha1-Y7xdy2EzG5K8Bf1SiVPDNGKgb40=",
-      "optional": true
+      "optional": true,
+      "requires": {
+        "tweetnacl": "0.14.5"
+      }
     },
     "boom": {
       "version": "2.10.1",
       "resolved": "https://registry.npmjs.org/boom/-/boom-2.10.1.tgz",
-      "integrity": "sha1-OciRjO/1eZ+D+UkqhI9iWt0Mdm8="
+      "integrity": "sha1-OciRjO/1eZ+D+UkqhI9iWt0Mdm8=",
+      "requires": {
+        "hoek": "2.16.3"
+      }
     },
     "brace-expansion": {
       "version": "1.1.8",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.8.tgz",
       "integrity": "sha1-wHshHHyVLsH479Uad+8NHTmQopI=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "balanced-match": "1.0.0",
+        "concat-map": "0.0.1"
+      }
     },
     "buffer-equal-constant-time": {
       "version": "1.0.1",
@@ -174,7 +219,10 @@
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/caller-path/-/caller-path-0.1.0.tgz",
       "integrity": "sha1-lAhe9jWB7NPaqSREqP6U6CV3dR8=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "callsites": "0.2.0"
+      }
     },
     "callsites": {
       "version": "0.2.0",
@@ -190,7 +238,12 @@
     "chalk": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.1.0.tgz",
-      "integrity": "sha512-LUHGS/dge4ujbXMJrnihYMcL4AoOweGnw9Tp3kQuqy1Kx5c1qKjqvMJZ6nVJPMWJtKCTN72ZogH3oeSO9g9rXQ=="
+      "integrity": "sha512-LUHGS/dge4ujbXMJrnihYMcL4AoOweGnw9Tp3kQuqy1Kx5c1qKjqvMJZ6nVJPMWJtKCTN72ZogH3oeSO9g9rXQ==",
+      "requires": {
+        "ansi-styles": "3.2.0",
+        "escape-string-regexp": "1.0.5",
+        "supports-color": "4.4.0"
+      }
     },
     "circular-json": {
       "version": "0.3.3",
@@ -202,7 +255,10 @@
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/cli-cursor/-/cli-cursor-2.1.0.tgz",
       "integrity": "sha1-s12sN2R5+sw+lHR9QdDQ9SOP/LU=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "restore-cursor": "2.0.0"
+      }
     },
     "cli-width": {
       "version": "2.2.0",
@@ -218,7 +274,10 @@
     "color-convert": {
       "version": "1.9.0",
       "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-1.9.0.tgz",
-      "integrity": "sha1-Gsz5fdc5uYO/mU1W/sj5WFNkG3o="
+      "integrity": "sha1-Gsz5fdc5uYO/mU1W/sj5WFNkG3o=",
+      "requires": {
+        "color-name": "1.1.3"
+      }
     },
     "color-name": {
       "version": "1.1.3",
@@ -228,7 +287,10 @@
     "combined-stream": {
       "version": "1.0.5",
       "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.5.tgz",
-      "integrity": "sha1-k4NwpXtKUd6ix3wV1cX9+JUWQAk="
+      "integrity": "sha1-k4NwpXtKUd6ix3wV1cX9+JUWQAk=",
+      "requires": {
+        "delayed-stream": "1.0.0"
+      }
     },
     "concat-map": {
       "version": "0.0.1",
@@ -240,7 +302,12 @@
       "version": "1.6.0",
       "resolved": "https://registry.npmjs.org/concat-stream/-/concat-stream-1.6.0.tgz",
       "integrity": "sha1-CqxmL9Ur54lk1VMvaUeE5wEQrPc=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "inherits": "2.0.3",
+        "readable-stream": "2.3.3",
+        "typedarray": "0.0.6"
+      }
     },
     "core-util-is": {
       "version": "1.0.2",
@@ -251,17 +318,28 @@
       "version": "5.1.0",
       "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-5.1.0.tgz",
       "integrity": "sha1-6L0O/uWPz/b4+UUQoKVUu/ojVEk=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "lru-cache": "4.1.1",
+        "shebang-command": "1.2.0",
+        "which": "1.3.0"
+      }
     },
     "cryptiles": {
       "version": "2.0.5",
       "resolved": "https://registry.npmjs.org/cryptiles/-/cryptiles-2.0.5.tgz",
-      "integrity": "sha1-O9/s3GCBR8HGcgL6KR59ylnqo7g="
+      "integrity": "sha1-O9/s3GCBR8HGcgL6KR59ylnqo7g=",
+      "requires": {
+        "boom": "2.10.1"
+      }
     },
     "dashdash": {
       "version": "1.14.1",
       "resolved": "https://registry.npmjs.org/dashdash/-/dashdash-1.14.1.tgz",
       "integrity": "sha1-hTz6D3y+L+1d4gMmuN1YEDX24vA=",
+      "requires": {
+        "assert-plus": "1.0.0"
+      },
       "dependencies": {
         "assert-plus": {
           "version": "1.0.0",
@@ -274,7 +352,10 @@
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/debug/-/debug-3.0.1.tgz",
       "integrity": "sha512-6nVc6S36qbt/mutyt+UGMnawAMrPDZUPQjRZI3FS9tCtDRhvxJbK79unYBLPi+z5SLXQ3ftoVBFCblQtNSls8w==",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "ms": "2.0.0"
+      }
     },
     "deep-is": {
       "version": "0.1.3",
@@ -286,7 +367,16 @@
       "version": "2.2.2",
       "resolved": "https://registry.npmjs.org/del/-/del-2.2.2.tgz",
       "integrity": "sha1-wSyYHQZ4RshLyvhiz/kw2Qf/0ag=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "globby": "5.0.0",
+        "is-path-cwd": "1.0.0",
+        "is-path-in-cwd": "1.0.0",
+        "object-assign": "4.1.1",
+        "pify": "2.3.0",
+        "pinkie-promise": "2.0.1",
+        "rimraf": "2.6.2"
+      }
     },
     "delayed-stream": {
       "version": "1.0.0",
@@ -297,18 +387,29 @@
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-2.0.0.tgz",
       "integrity": "sha1-xz2NKQnSIpHhoAejlYBNqLZl/mM=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "esutils": "2.0.2",
+        "isarray": "1.0.0"
+      }
     },
     "ecc-jsbn": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/ecc-jsbn/-/ecc-jsbn-0.1.1.tgz",
       "integrity": "sha1-D8c6ntXw1Tw4GTOYUj735UN3dQU=",
-      "optional": true
+      "optional": true,
+      "requires": {
+        "jsbn": "0.1.1"
+      }
     },
     "ecdsa-sig-formatter": {
       "version": "1.0.9",
       "resolved": "https://registry.npmjs.org/ecdsa-sig-formatter/-/ecdsa-sig-formatter-1.0.9.tgz",
-      "integrity": "sha1-S8kmJ07Dtau1AW5+HWCSGsJisqE="
+      "integrity": "sha1-S8kmJ07Dtau1AW5+HWCSGsJisqE=",
+      "requires": {
+        "base64url": "2.0.0",
+        "safe-buffer": "5.1.1"
+      }
     },
     "escape-string-regexp": {
       "version": "1.0.5",
@@ -320,12 +421,57 @@
       "resolved": "https://registry.npmjs.org/eslint/-/eslint-4.7.0.tgz",
       "integrity": "sha1-01/AfEclIL496Fs9oR6ZxXav1RU=",
       "dev": true,
+      "requires": {
+        "ajv": "5.2.2",
+        "babel-code-frame": "6.26.0",
+        "chalk": "2.1.0",
+        "concat-stream": "1.6.0",
+        "cross-spawn": "5.1.0",
+        "debug": "3.0.1",
+        "doctrine": "2.0.0",
+        "eslint-scope": "3.7.1",
+        "espree": "3.5.1",
+        "esquery": "1.0.0",
+        "estraverse": "4.2.0",
+        "esutils": "2.0.2",
+        "file-entry-cache": "2.0.0",
+        "functional-red-black-tree": "1.0.1",
+        "glob": "7.1.2",
+        "globals": "9.18.0",
+        "ignore": "3.3.5",
+        "imurmurhash": "0.1.4",
+        "inquirer": "3.2.3",
+        "is-resolvable": "1.0.0",
+        "js-yaml": "3.10.0",
+        "json-stable-stringify": "1.0.1",
+        "levn": "0.3.0",
+        "lodash": "4.17.4",
+        "minimatch": "3.0.4",
+        "mkdirp": "0.5.1",
+        "natural-compare": "1.4.0",
+        "optionator": "0.8.2",
+        "path-is-inside": "1.0.2",
+        "pluralize": "7.0.0",
+        "progress": "2.0.0",
+        "require-uncached": "1.0.3",
+        "semver": "5.4.1",
+        "strip-ansi": "4.0.0",
+        "strip-json-comments": "2.0.1",
+        "table": "4.0.1",
+        "text-table": "0.2.0"
+      },
       "dependencies": {
         "ajv": {
           "version": "5.2.2",
           "resolved": "https://registry.npmjs.org/ajv/-/ajv-5.2.2.tgz",
           "integrity": "sha1-R8aNaehvXZUxA7AHSpQw3GPaXjk=",
-          "dev": true
+          "dev": true,
+          "requires": {
+            "co": "4.6.0",
+            "fast-deep-equal": "1.0.0",
+            "json-schema-traverse": "0.3.1",
+            "json-stable-stringify": "1.0.1"
+          }
         }
       }
     },
@@ -333,13 +479,21 @@
       "version": "3.7.1",
       "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-3.7.1.tgz",
       "integrity": "sha1-PWPD7f2gLgbgGkUq2IyqzHzctug=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "esrecurse": "4.2.0",
+        "estraverse": "4.2.0"
+      }
     },
     "espree": {
       "version": "3.5.1",
       "resolved": "https://registry.npmjs.org/espree/-/espree-3.5.1.tgz",
       "integrity": "sha1-DJiLirRttTEAoZVK5LqZXd0n2H4=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "acorn": "5.1.2",
+        "acorn-jsx": "3.0.1"
+      }
     },
     "esprima": {
       "version": "4.0.0",
@@ -351,13 +505,20 @@
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/esquery/-/esquery-1.0.0.tgz",
       "integrity": "sha1-z7qLV9f7qT8XKYqKAGoEzaE9gPo=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "estraverse": "4.2.0"
+      }
     },
     "esrecurse": {
       "version": "4.2.0",
       "resolved": "https://registry.npmjs.org/esrecurse/-/esrecurse-4.2.0.tgz",
       "integrity": "sha1-+pVo2Y04I/mkHZHpAtyrnqblsWM=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "estraverse": "4.2.0",
+        "object-assign": "4.1.1"
+      }
     },
     "estraverse": {
       "version": "4.2.0",
@@ -380,7 +541,12 @@
       "version": "2.0.4",
       "resolved": "https://registry.npmjs.org/external-editor/-/external-editor-2.0.4.tgz",
       "integrity": "sha1-HtkZnanL/i7y96MbL96LDRI2iXI=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "iconv-lite": "0.4.19",
+        "jschardet": "1.5.1",
+        "tmp": "0.0.31"
+      }
     },
     "extsprintf": {
       "version": "1.3.0",
@@ -403,19 +569,32 @@
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/figures/-/figures-2.0.0.tgz",
       "integrity": "sha1-OrGi0qYsi/tDGgyUy3l6L84nyWI=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "escape-string-regexp": "1.0.5"
+      }
     },
     "file-entry-cache": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/file-entry-cache/-/file-entry-cache-2.0.0.tgz",
       "integrity": "sha1-w5KZDD5oR4PYOLjISkXYoEhFg2E=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "flat-cache": "1.2.2",
+        "object-assign": "4.1.1"
+      }
     },
     "flat-cache": {
       "version": "1.2.2",
       "resolved": "https://registry.npmjs.org/flat-cache/-/flat-cache-1.2.2.tgz",
       "integrity": "sha1-+oZxTnLCHbiGAXYezy9VXRq8a5Y=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "circular-json": "0.3.3",
+        "del": "2.2.2",
+        "graceful-fs": "4.1.11",
+        "write": "0.2.1"
+      }
     },
     "forever-agent": {
       "version": "0.6.1",
@@ -425,7 +604,12 @@
     "form-data": {
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@@ -971,7 +1362,10 @@
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       "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-1.2.0.tgz",
       "integrity": "sha1-RKrGW2lbAzmJaMOfNj/uXer98eo=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "shebang-regex": "1.0.0"
+      }
     },
     "shebang-regex": {
       "version": "1.0.0",
@@ -999,7 +1393,10 @@
     "sntp": {
       "version": "1.0.9",
       "resolved": "https://registry.npmjs.org/sntp/-/sntp-1.0.9.tgz",
-      "integrity": "sha1-ZUEYTMkK7qbG57NeJlkIJEPGYZg="
+      "integrity": "sha1-ZUEYTMkK7qbG57NeJlkIJEPGYZg=",
+      "requires": {
+        "hoek": "2.16.3"
+      }
     },
     "sprintf-js": {
       "version": "1.0.3",
@@ -1011,6 +1408,16 @@
       "version": "1.13.1",
       "resolved": "https://registry.npmjs.org/sshpk/-/sshpk-1.13.1.tgz",
       "integrity": "sha1-US322mKHFEMW3EwY/hzx2UBzm+M=",
+      "requires": {
+        "asn1": "0.2.3",
+        "assert-plus": "1.0.0",
+        "bcrypt-pbkdf": "1.0.1",
+        "dashdash": "1.14.1",
+        "ecc-jsbn": "0.1.1",
+        "getpass": "0.1.7",
+        "jsbn": "0.1.1",
+        "tweetnacl": "0.14.5"
+      },
       "dependencies": {
         "assert-plus": {
           "version": "1.0.0",
@@ -1023,7 +1430,10 @@
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.0.3.tgz",
       "integrity": "sha512-4AH6Z5fzNNBcH+6XDMfA/BTt87skxqJlO0lAh3Dker5zThcAxG6mKz+iGu308UKoPPQ8Dcqx/4JhujzltRa+hQ==",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "safe-buffer": "5.1.1"
+      }
     },
     "string-template": {
       "version": "1.0.0",
@@ -1034,7 +1444,11 @@
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
       "integrity": "sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "is-fullwidth-code-point": "2.0.0",
+        "strip-ansi": "4.0.0"
+      }
     },
     "stringstream": {
       "version": "0.0.5",
@@ -1046,6 +1460,9 @@
       "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-4.0.0.tgz",
       "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
       "dev": true,
+      "requires": {
+        "ansi-regex": "3.0.0"
+      },
       "dependencies": {
         "ansi-regex": {
           "version": "3.0.0",
@@ -1064,13 +1481,24 @@
     "supports-color": {
       "version": "4.4.0",
       "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-4.4.0.tgz",
-      "integrity": "sha512-rKC3+DyXWgK0ZLKwmRsrkyHVZAjNkfzeehuFWdGGcqGDTZFH73+RH6S/RDAAxl9GusSjZSUWYLmT9N5pzXFOXQ=="
+      "integrity": "sha512-rKC3+DyXWgK0ZLKwmRsrkyHVZAjNkfzeehuFWdGGcqGDTZFH73+RH6S/RDAAxl9GusSjZSUWYLmT9N5pzXFOXQ==",
+      "requires": {
+        "has-flag": "2.0.0"
+      }
     },
     "table": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/table/-/table-4.0.1.tgz",
       "integrity": "sha1-qBFsEz+sLGH0pCCrbN9cTWHw5DU=",
       "dev": true,
+      "requires": {
+        "ajv": "4.11.8",
+        "ajv-keywords": "1.5.1",
+        "chalk": "1.1.3",
+        "lodash": "4.17.4",
+        "slice-ansi": "0.0.4",
+        "string-width": "2.1.1"
+      },
       "dependencies": {
         "ansi-styles": {
           "version": "2.2.1",
@@ -1082,13 +1510,23 @@
           "version": "1.1.3",
           "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
           "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
-          "dev": true
+          "dev": true,
+          "requires": {
+            "ansi-styles": "2.2.1",
+            "escape-string-regexp": "1.0.5",
+            "has-ansi": "2.0.0",
+            "strip-ansi": "3.0.1",
+            "supports-color": "2.0.0"
+          }
         },
         "strip-ansi": {
           "version": "3.0.1",
           "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
           "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
-          "dev": true
+          "dev": true,
+          "requires": {
+            "ansi-regex": "2.1.1"
+          }
         },
         "supports-color": {
           "version": "2.0.0",
@@ -1114,12 +1552,18 @@
       "version": "0.0.31",
       "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.0.31.tgz",
       "integrity": "sha1-jzirlDjhcxXl29izZX6L+yd65Kc=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "os-tmpdir": "1.0.2"
+      }
     },
     "tough-cookie": {
       "version": "2.3.2",
       "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.3.2.tgz",
-      "integrity": "sha1-8IH3bkyFcg5sN6X6ztc3FQ2EByo="
+      "integrity": "sha1-8IH3bkyFcg5sN6X6ztc3FQ2EByo=",
+      "requires": {
+        "punycode": "1.4.1"
+      }
     },
     "tryit": {
       "version": "1.0.3",
@@ -1130,7 +1574,10 @@
     "tunnel-agent": {
       "version": "0.6.0",
       "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
-      "integrity": "sha1-J6XeoGs2sEoKmWZ3SykIaPD8QP0="
+      "integrity": "sha1-J6XeoGs2sEoKmWZ3SykIaPD8QP0=",
+      "requires": {
+        "safe-buffer": "5.1.1"
+      }
     },
     "tweetnacl": {
       "version": "0.14.5",
@@ -1142,7 +1589,10 @@
       "version": "0.3.2",
       "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.3.2.tgz",
       "integrity": "sha1-WITKtRLPHTVeP7eE8wgEsrUg23I=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "prelude-ls": "1.1.2"
+      }
     },
     "typedarray": {
       "version": "0.0.6",
@@ -1165,6 +1615,11 @@
       "version": "1.10.0",
       "resolved": "https://registry.npmjs.org/verror/-/verror-1.10.0.tgz",
       "integrity": "sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=",
+      "requires": {
+        "assert-plus": "1.0.0",
+        "core-util-is": "1.0.2",
+        "extsprintf": "1.3.0"
+      },
       "dependencies": {
         "assert-plus": {
           "version": "1.0.0",
@@ -1177,7 +1632,10 @@
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/which/-/which-1.3.0.tgz",
       "integrity": "sha512-xcJpopdamTuY5duC/KnTTNBraPK54YwpenP4lzxU8H91GudWpFv38u0CKjclE1Wi2EH2EDz5LRcHcKbCIzqGyg==",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "isexe": "2.0.0"
+      }
     },
     "wordwrap": {
       "version": "1.0.0",
@@ -1195,7 +1653,10 @@
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/write/-/write-0.2.1.tgz",
       "integrity": "sha1-X8A4KOJkzqP+kUVUdvejxWbLB1c=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "mkdirp": "0.5.1"
+      }
     },
     "yallist": {
       "version": "2.1.2",
diff --git a/package.json b/package.json
index eab7c2d..0fad929 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,8 @@
     "googleapis": "^21.3.0",
     "minimist": "^1.2.0",
     "moment": "^2.18.1",
-    "sherlockjs": "^1.3.7"
+    "sherlockjs": "^1.3.7",
+    "opn": "^5.1.0"
   },
   "devDependencies": {
     "eslint": "^4.6.1"