diff --git a/frontend/components/Layout.jinja b/frontend/components/Layout.jinja
new file mode 100644
index 0000000..cf430c5
--- /dev/null
+++ b/frontend/components/Layout.jinja
@@ -0,0 +1,18 @@
+{#def title="PointCloud Viewer", active_tab="" #}
+<!DOCTYPE html>
+<html lang="fr" data-theme="dark">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>{{ title }}</title>
+  <link href="https://cdn.jsdelivr.net/npm/daisyui@4.12.10/dist/full.min.css" rel="stylesheet">
+  <script src="https://cdn.tailwindcss.com"></script>
+  <script src="https://unpkg.com/htmx.org@1.9.12"></script>
+</head>
+<body class="bg-base-200 min-h-screen">
+  <Navbar active_tab="{{ active_tab }}" />
+  <div class="container mx-auto px-4 mt-6 max-w-7xl pb-10">
+    {{ content }}
+  </div>
+</body>
+</html>
diff --git a/frontend/components/Navbar.jinja b/frontend/components/Navbar.jinja
new file mode 100644
index 0000000..81da149
--- /dev/null
+++ b/frontend/components/Navbar.jinja
@@ -0,0 +1,36 @@
+{#def active_tab="" #}
+<div class="navbar bg-base-100 shadow-md px-6 mb-2">
+  <div class="flex-1">
+    <span class="text-xl font-bold tracking-tight">☁️ PointCloud Viewer</span>
+  </div>
+  <div class="flex-none gap-4 items-center">
+    <div
+      id="health-indicator"
+      hx-get="/health-check"
+      hx-trigger="load"
+      hx-swap="innerHTML"
+      class="text-sm text-base-content/50"
+    >vérification…</div>
+  </div>
+</div>
+
+<div role="tablist" class="tabs tabs-boxed mb-6 w-fit ml-4">
+  <a
+    role="tab"
+    class="tab {% if active_tab == 'upload' %}tab-active{% endif %}"
+    hx-get="/"
+    hx-target="#main-content"
+    hx-push-url="/"
+  >📤 Upload</a>
+  <a
+    role="tab"
+    class="tab {% if active_tab == 'admin' %}tab-active{% endif %}"
+    hx-get="/admin/list"
+    hx-target="#main-content"
+    hx-push-url="/admin"
+  >🗂️ Admin</a>
+</div>
+
+<div id="main-content" class="px-4">
+  {{ content }}
+</div>
\ No newline at end of file
diff --git a/frontend/components/Spinner.jinja b/frontend/components/Spinner.jinja
new file mode 100644
index 0000000..0eb1873
--- /dev/null
+++ b/frontend/components/Spinner.jinja
@@ -0,0 +1,2 @@
+{#def id="spinner" #}
+<span id="{{ id }}" class="loading loading-spinner loading-md htmx-indicator"></span>
\ No newline at end of file
