diff --git a/app.py b/app.py
index bf326425..81e426e8 100644
--- a/app.py
+++ b/app.py
@@ -8,55 +8,7 @@
 
 params = page_setup(page="main")
 
-
-# define the costant
-length_captcha = 5
-width = 400
-height = 180
-
-# define the function for the captcha control
-def captcha_control():
-    #control if the captcha is correct
-    if 'controllo' not in st.session_state or st.session_state['controllo'] == False:
-        st.title("Makesure you are not a robot🤖")
-        
-        # define the session state for control if the captcha is correct
-        st.session_state['controllo'] = False
-        col1, col2 = st.columns(2)
-        
-        # define the session state for the captcha text because it doesn't change during refreshes 
-        if 'Captcha' not in st.session_state:
-                st.session_state['Captcha'] = ''.join(random.choices(string.ascii_uppercase + string.digits, k=length_captcha))
-        
-        #setup the captcha widget
-        image = ImageCaptcha(width=width, height=height)
-        data = image.generate(st.session_state['Captcha'])
-        col1.image(data)
-        capta2_text = col2.text_area('Enter captcha text', height=20)
-        
-        
-        if st.button("Verify the code"):
-            capta2_text = capta2_text.replace(" ", "")
-            # if the captcha is correct, the controllo session state is set to True
-            if st.session_state['Captcha'].lower() == capta2_text.lower().strip():
-                del st.session_state['Captcha']
-                col1.empty()
-                col2.empty()
-                st.session_state['controllo'] = True
-                st.experimental_rerun() 
-            else:
-                # if the captcha is wrong, the controllo session state is set to False and the captcha is regenerated
-                st.error("🚨 Captch is wrong")
-                del st.session_state['Captcha']
-                del st.session_state['controllo']
-                st.experimental_rerun()
-        else:
-            #wait for the button click
-            st.stop()
-        
-        
-        
-def your_main():
+def main():
     st.title("Template App")
     st.markdown("## A template for an OpenMS streamlit app.")
     if Path("OpenMS-App.zip").exists():
@@ -69,16 +21,66 @@ def your_main():
                     mime="archive/zip",
                 )
     save_params(params)
-       
-# WORK LIKE MULTIPAGE APP         
-if 'controllo' not in st.session_state or st.session_state['controllo'] == False:
-    delete_page("app", "File_Upload")
-    delete_page("app", "View_Raw_Data")
-    delete_page("app", "Workflow")
-    captcha_control()
+
+## In local mode no captcha 
+if "local" in sys.argv:
+    main()
+
 else:
-    your_main()
-    add_page("app", "File_Upload")
-    add_page("app", "View_Raw_Data")
-    add_page("app", "Workflow")
+   
+    length_captcha = 5
+    width = 400
+    height = 180
+
+    # define the function for the captcha control
+    def captcha_control():
+        #control if the captcha is correct
+        if 'controllo' not in st.session_state or st.session_state['controllo'] == False:
+            st.title("Makesure you are not a robot🤖")
+            
+            # define the session state for control if the captcha is correct
+            st.session_state['controllo'] = False
+            col1, col2 = st.columns(2)
+            
+            # define the session state for the captcha text because it doesn't change during refreshes 
+            if 'Captcha' not in st.session_state:
+                    st.session_state['Captcha'] = ''.join(random.choices(string.ascii_uppercase + string.digits, k=length_captcha))
+            
+            #setup the captcha widget
+            image = ImageCaptcha(width=width, height=height)
+            data = image.generate(st.session_state['Captcha'])
+            col1.image(data)
+            capta2_text = col2.text_area('Enter captcha text', height=20)
+            
+            
+            if st.button("Verify the code"):
+                capta2_text = capta2_text.replace(" ", "")
+                # if the captcha is correct, the controllo session state is set to True
+                if st.session_state['Captcha'].lower() == capta2_text.lower().strip():
+                    del st.session_state['Captcha']
+                    col1.empty()
+                    col2.empty()
+                    st.session_state['controllo'] = True
+                    st.experimental_rerun() 
+                else:
+                    # if the captcha is wrong, the controllo session state is set to False and the captcha is regenerated
+                    st.error("🚨 Captch is wrong")
+                    del st.session_state['Captcha']
+                    del st.session_state['controllo']
+                    st.experimental_rerun()
+            else:
+                #wait for the button click
+                st.stop()
+        
+    # WORK LIKE MULTIPAGE APP         
+    if 'controllo' not in st.session_state or st.session_state['controllo'] == False:
+        delete_page("app", "File_Upload")
+        delete_page("app", "View_Raw_Data")
+        delete_page("app", "Workflow")
+        captcha_control()
+    else:
+        main()
+        add_page("app", "File_Upload")
+        add_page("app", "View_Raw_Data")
+        add_page("app", "Workflow")
 
diff --git a/run_app.py b/run_app.py
index 900bc3b0..404702f3 100644
--- a/run_app.py
+++ b/run_app.py
@@ -1,5 +1,6 @@
 from streamlit.web import cli
 
 if __name__=='__main__':
-    cli._main_run_clExplicit('app.py', 'streamlit run')
+
+    cli._main_run_clExplicit(file = 'app.py', command_line = 'streamlit run', args=['local']) #run in local mode
     # we will create this function inside our streamlit framework