diff --git a/inc/classes/csslisible.class.php b/inc/classes/csslisible.class.php
index 00849b5..b9cf770 100644
--- a/inc/classes/csslisible.class.php
+++ b/inc/classes/csslisible.class.php
@@ -175,6 +175,14 @@ function __construct($args = array(), $values = array()) {
             $values = $_POST;
         }
 
+        if(php_sapi_name() === 'cli'){
+            $values = getopt('', array('filename::','tab_opened::'));
+            $values['clean_css'] = '1';
+            if(!isset($values['tab_opened'])){
+                $values['tab_opened'] = 'file';
+            }
+        }
+
         $this->set_default_values($values);
         $this->posted_values = $this->translating_values($this->posted_values);
 
@@ -359,6 +367,12 @@ private function get_url_contents( $url ) {
 
     private function get_buffer_from_files() {
 
+        if (php_sapi_name() === 'cli') {
+            if (isset($this->posted_values['filename']) && is_readable($this->posted_values['filename']) && pathinfo($this->posted_values['filename'], PATHINFO_EXTENSION) === 'css') {
+                $this->buffer = file_get_contents($this->posted_values['filename']);
+            }
+        }
+
         if ( isset( $_FILES['clean_css_file']['name'][0] ) ) {
             $buffer_tmp = '';
             // Obtaining clean array of files
diff --git a/inc/header.php b/inc/header.php
index 7f1a8c1..838d447 100644
--- a/inc/header.php
+++ b/inc/header.php
@@ -28,15 +28,19 @@
     $_posted_values = $_POST;
 }
 
-if (empty($_posted_values) && $_SERVER['REQUEST_METHOD'] === 'POST') {
+if (empty($_posted_values) && isset($_SERVER['REQUEST_METHOD'] ) && $_SERVER['REQUEST_METHOD'] === 'POST') {
     $input = file_get_contents('php://input');
     $_posted_values = json_decode($input, true);
 }
 
+if (php_sapi_name() === 'cli') {
+    $_posted_values = getopt('', array('filename::'));
+}
+
 $args['listing_proprietes'] = $listing_proprietes;
 $CSSLisible = new CSSLisible( $args, $_posted_values );
 
-if ( isset( $_posted_values['api'] ) || isset( $_GET['api'] ) ) {
+if ( isset( $_posted_values['api'] ) || isset( $_GET['api'] ) || php_sapi_name() === 'cli' ) {
     header( 'Content-type: text/css; charset=utf-8' );
     exit( $CSSLisible->buffer );
 }