diff --git a/frontend/index.html b/frontend/index.html
index 45184e07..29f2d32a 100644
--- a/frontend/index.html
+++ b/frontend/index.html
@@ -4,6 +4,11 @@
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>XSLT Playground</title>
+    <script
+      async
+      src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=%VITE_ADSENSE_CLIENT%"
+      crossorigin="anonymous"
+    ></script>
   </head>
   <body>
     <div id="root"></div>
diff --git a/frontend/src/App.jsx b/frontend/src/App.jsx
index 14a0ba8d..773f29e6 100644
--- a/frontend/src/App.jsx
+++ b/frontend/src/App.jsx
@@ -58,6 +58,8 @@ function debounce(fn, delay) {
 }
 
 const goPro = import.meta.env.VITE_GO_PRO === "true";
+const adsenseClient = import.meta.env.VITE_ADSENSE_CLIENT;
+const adsenseSlot = import.meta.env.VITE_ADSENSE_SLOT;
 
 function defaultTab() {
   return {
@@ -256,6 +258,14 @@ export default function App() {
     URL.revokeObjectURL(url);
   };
 
+  useEffect(() => {
+    if (adsenseClient && adsenseSlot && window.adsbygoogle) {
+      try {
+        window.adsbygoogle.push({});
+      } catch {}
+    }
+  }, []);
+
   return (
     <div className="app-container">
       <div className="header">
@@ -445,7 +455,30 @@ export default function App() {
           options={{ readOnly: true, minimap: { enabled: false }, automaticLayout: true }}
         />
       </div>
-      <div className="banner">Anuncio</div>
+      <div className="banner">
+        {adsenseClient && adsenseSlot ? (
+          <ins
+            className="adsbygoogle"
+            style={{ display: "block" }}
+            data-ad-client={adsenseClient}
+            data-ad-slot={adsenseSlot}
+            data-ad-format="auto"
+            data-full-width-responsive="true"
+          />
+        ) : (
+          "Anuncio"
+        )}
+      </div>
+      <div className="footer">
+        © 2025 Alexandre Vazquez. All rights reserved.{' '}
+        <a
+          href="https://alexandre-vazquez.com"
+          target="_blank"
+          rel="noopener noreferrer"
+        >
+          alexandre-vazquez.com
+        </a>
+      </div>
     </div>
   );
 }
diff --git a/frontend/src/style.css b/frontend/src/style.css
index 2bb49ee6..9c91fd28 100644
--- a/frontend/src/style.css
+++ b/frontend/src/style.css
@@ -95,10 +95,15 @@ body,
   text-align: center;
   padding: 0.5rem;
   background: #f0f0f0;
-  position: fixed;
-  bottom: 0;
-  left: 0;
-  right: 0;
+  border-top: 1px solid #ddd;
+}
+
+.footer {
+  text-align: center;
+  padding: 0.5rem;
+  background: #fafafa;
+  border-top: 1px solid #ddd;
+  font-size: 0.85rem;
 }
 
 .icon-button {
