diff --git a/index.php b/index.php
index 2719f96..0706265 100644
--- a/index.php
+++ b/index.php
@@ -37,6 +37,7 @@ $current_role = current_user_role();
     <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/css/bootstrap.min.css" rel="stylesheet">
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css" rel="stylesheet">
     <script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
+    <link rel="manifest" href="manifest.json">
 </head>
 <body>
     <nav class="navbar navbar-expand-lg navbar-light bg-white mb-4">
@@ -221,5 +222,16 @@ $current_role = current_user_role();
     </footer>
 
     <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/js/bootstrap.bundle.min.js"></script>
+    <script>
+        if ('serviceWorker' in navigator) {
+            window.addEventListener('load', () => {
+                navigator.serviceWorker.register('/sw.js').then(registration => {
+                    console.log('ServiceWorker registration successful with scope: ', registration.scope);
+                }, err => {
+                    console.log('ServiceWorker registration failed: ', err);
+                });
+            });
+        }
+    </script>
 </body>
 </html>
diff --git a/manifest.json b/manifest.json
new file mode 100644
index 0000000..f2f597e
--- /dev/null
+++ b/manifest.json
@@ -0,0 +1,20 @@
+{
+  "short_name": "Clinic",
+  "name": "Clinic Management",
+  "icons": [
+    {
+      "src": "assets/icons/icon-192x192.png",
+      "type": "image/png",
+      "sizes": "192x192"
+    },
+    {
+      "src": "assets/icons/icon-512x512.png",
+      "type": "image/png",
+      "sizes": "512x512"
+    }
+  ],
+  "start_url": "/index.php",
+  "display": "standalone",
+  "theme_color": "#3367D6",
+  "background_color": "#3367D6"
+}
\ No newline at end of file
diff --git a/sw.js b/sw.js
new file mode 100644
index 0000000..64a135f
--- /dev/null
+++ b/sw.js
@@ -0,0 +1,36 @@
+
+const CACHE_NAME = 'clinic-app-cache-v1';
+const urlsToCache = [
+  '/',
+  '/index.php',
+  '/dashboard.php',
+  '/login.php',
+  '/register.php',
+  '/view_visits.php',
+  '/add_visit.php',
+  '/auth.php',
+  '/logout.php',
+  '/update_visit_status.php'
+];
+
+self.addEventListener('install', event => {
+  event.waitUntil(
+    caches.open(CACHE_NAME)
+      .then(cache => {
+        console.log('Opened cache');
+        return cache.addAll(urlsToCache);
+      })
+  );
+});
+
+self.addEventListener('fetch', event => {
+  event.respondWith(
+    caches.match(event.request)
+      .then(response => {
+        if (response) {
+          return response;
+        }
+        return fetch(event.request);
+      })
+  );
+});
