diff --git a/README.md b/README.md
index 247a5cf..bf558a4 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ pip install requirements.txt
 URL can be any of the following ip:port, plex.direct:port, hostname:port, plex.tv
 
 ```
-usage: main.py [-h] -u USERNAME -p PASSWORD url
+usage: main.py [-h] [-u USERNAME] [-p PASSWORD] [-c COOKIE] [--original-filename] [-t TOKEN] [-f AUTHFILE] url
 
 positional arguments:
   url                   URL to Movie, Show, Season, Episode.
@@ -41,10 +41,25 @@ optional arguments:
   --original-filename   Name content by original name
   -t TOKEN, --token TOKEN
                         Plex Token
+  -f AUTHFILE, --authfile AUTHFILE
+                        Path to a json file containing authentication data
 ```
 
-## Example
+## Examples
 
 ```
 python main.py -u codedninja -p 3U7qYhaBAk8yfa 'https://app.plex.tv/desktop#!/server/0893cadc04a6f52efa052691d6a07c5b54890ca1/details?key=%2Flibrary%2Fmetadata%2F208649&context=source%3Ahub.tv.recentlyaired'
 ```
+
+```
+python main.py -f auth.json 'https://app.plex.tv/desktop#!/server/0893cadc04a6f52efa052691d6a07c5b54890ca1/details?key=%2Flibrary%2Fmetadata%2F208649&context=source%3Ahub.tv.recentlyaired'
+```
+
+Content of `auth.json` :
+```json
+{
+    "email": "codedninja",
+    "password": "3U7qYhaBAk8yfa"
+}
+```
+
diff --git a/main.py b/main.py
index 8e1dca2..97019d2 100644
--- a/main.py
+++ b/main.py
@@ -276,6 +276,8 @@ def command_line(self):
 
         ap.add_argument("-t", "--token", required=False, help="Plex Token")
 
+        ap.add_argument("-f", "--authfile", required=False, help="Path to a json file containing authentication data")
+
         ap.add_argument(
             "url", help="URL to Movie, Show, Season, Episode. TIP: Put url inside single quotes.")
 
@@ -287,12 +289,28 @@ def command_line(self):
         self.cookie = args.cookie
         self.original_filename = args.original_filename
 
-        if ((self.email is None or self.password is None) and self.token is None and self.cookie is None):
-            print("Username and psasword, token, or cookie is required")
-            quit(1)
+        if args.authfile is not None and self.cantAuthenticateUser():
+            with open(args.authfile, 'r') as f:
+                auth_data = json.load(f)
+            for field in ['email', 'password', 'token', 'cookie']:
+                if field in auth_data and type(auth_data[field]) == str:
+                    self.__dict__[field] = auth_data[field]
+
+        if self.cantAuthenticateUser():
+            if self.email is None:
+                self.email = input('Enter username > ')
+            if self.password is None:
+                try:
+                    from stdiomask import getpass
+                except ImportError:
+                    from getpass import getpass
+                self.password = getpass('Enter password > ')
 
         self.parse_url(args.url)
         self.download()
+    
+    def cantAuthenticateUser(self) :
+        return ((self.email is None or self.password is None) and self.token is None and self.cookie is None)
 
     def __init__(self):
         return