diff --git a/_includes/icons.html b/_includes/icons.html
index 15afc10..a3ac776 100644
--- a/_includes/icons.html
+++ b/_includes/icons.html
@@ -2,3 +2,7 @@
 
         <!-- Favicon -->
         <link rel="icon" type="image/x-icon" href="/favicon.ico">
+        <link rel="apple-touch-icon" sizes="180x180" href="/images/icons/apple-touch-icon.png">
+        <link rel="icon" type="image/png" sizes="32x32" href="/images/icons/favicon-32x32.png">
+        <link rel="icon" type="image/png" sizes="16x16" href="/images/icons/favicon-16x16.png">
+        <link rel="manifest" href="/images/icons/site.webmanifest">
diff --git a/images/icons/android-chrome-192x192.png b/images/icons/android-chrome-192x192.png
new file mode 100644
index 0000000..a4be32e
Binary files /dev/null and b/images/icons/android-chrome-192x192.png differ
diff --git a/images/icons/android-chrome-512x512.png b/images/icons/android-chrome-512x512.png
new file mode 100644
index 0000000..0ef94e5
Binary files /dev/null and b/images/icons/android-chrome-512x512.png differ
diff --git a/images/icons/apple-touch-icon.png b/images/icons/apple-touch-icon.png
new file mode 100644
index 0000000..a0fa9ba
Binary files /dev/null and b/images/icons/apple-touch-icon.png differ
diff --git a/images/icons/favicon-16x16.png b/images/icons/favicon-16x16.png
new file mode 100644
index 0000000..1311dd4
Binary files /dev/null and b/images/icons/favicon-16x16.png differ
diff --git a/images/icons/favicon-32x32.png b/images/icons/favicon-32x32.png
new file mode 100644
index 0000000..2cc3b44
Binary files /dev/null and b/images/icons/favicon-32x32.png differ
diff --git a/images/icons/site.webmanifest b/images/icons/site.webmanifest
new file mode 100644
index 0000000..71544e3
--- /dev/null
+++ b/images/icons/site.webmanifest
@@ -0,0 +1,13 @@
+{
+  "name":"mruby Lightweight Ruby",
+  "short_name":"mruby",
+  "icons":[
+    {"src":"/images/icons/android-chrome-192x192.png","sizes":"192x192","type":"image/png"},
+    {"src":"/images/icons/android-chrome-512x512.png","sizes":"512x512","type":"image/png"}],
+  "theme_color":"#e0115f",
+  "background_color":"#ffffff",
+  "display":"standalone",
+  "start_url": "/?source=pwa",
+  "scope": "/",
+  "orientation":"portrait"
+}