diff --git a/manifest.json b/manifest.json
index e74fdee..926c85f 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,5 +6,6 @@
   "permissions": ["storage"],
   "host_permissions": ["https://www.googleapis.com/youtube/v3/*"],
   "background": { "service_worker": "src/background.js", "type": "module" },
-  "action": { "default_title": "Outlier Saver" }
+  "action": { "default_title": "Outlier Saver" },
+  "options_ui": { "page": "src/options/options.html", "open_in_tab": true }
 }
diff --git a/src/options/options.css b/src/options/options.css
new file mode 100644
index 0000000..641cf90
--- /dev/null
+++ b/src/options/options.css
@@ -0,0 +1,16 @@
+:root {
+  color-scheme: light dark;
+  --line: color-mix(in srgb, currentColor 20%, transparent);
+  --muted: color-mix(in srgb, currentColor 60%, transparent);
+}
+body { margin: 0; font: 15px/1.5 system-ui, sans-serif; }
+main { max-width: 520px; margin: 0 auto; padding: 24px 16px; }
+h1 { font-size: 20px; margin: 0 0 16px; }
+form { display: grid; gap: 16px; }
+label { display: grid; gap: 4px; font-weight: 600; }
+input { padding: 8px 10px; font: inherit; border: 1px solid var(--line); border-radius: 6px; background: transparent; color: inherit; }
+.actions { display: flex; align-items: center; gap: 12px; }
+button { padding: 8px 16px; font: inherit; border: 0; border-radius: 6px; background: #1a73e8; color: #fff; cursor: pointer; }
+#saved { color: var(--muted); }
+details { margin-top: 24px; color: var(--muted); }
+summary { cursor: pointer; }
diff --git a/src/options/options.html b/src/options/options.html
new file mode 100644
index 0000000..43d4850
--- /dev/null
+++ b/src/options/options.html
@@ -0,0 +1,43 @@
+<!doctype html>
+<html lang="ru">
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <title>Outlier Saver — настройки</title>
+  <link rel="stylesheet" href="options.css">
+</head>
+<body>
+  <main>
+    <h1>Outlier Saver</h1>
+    <form id="form">
+      <label>
+        API-ключ YouTube Data API v3
+        <input id="apiKey" type="password" autocomplete="off" spellcheck="false">
+      </label>
+      <label>
+        Порог score (просмотры ÷ подписчики)
+        <input id="threshold" type="number" min="0.1" step="0.1" required>
+      </label>
+      <label>
+        Минимум просмотров
+        <input id="minViews" type="number" min="0" step="1000" required>
+      </label>
+      <div class="actions">
+        <button type="submit">Сохранить</button>
+        <span id="saved" role="status"></span>
+      </div>
+    </form>
+    <details>
+      <summary>Как получить API-ключ</summary>
+      <ol>
+        <li>Откройте <a href="https://console.cloud.google.com/" target="_blank" rel="noreferrer">Google Cloud Console</a> и создайте проект.</li>
+        <li>В разделе «API и сервисы → Библиотека» включите <b>YouTube Data API v3</b>.</li>
+        <li>В «Учётные данные» создайте <b>API-ключ</b>.</li>
+        <li>В ограничениях ключа выберите «Ограничить API → YouTube Data API v3». Ограничение по HTTP-источникам (referrer) <b>не включайте</b>: запросы идут из расширения.</li>
+        <li>Вставьте ключ в поле выше и нажмите «Сохранить».</li>
+      </ol>
+    </details>
+  </main>
+  <script type="module" src="options.js"></script>
+</body>
+</html>
diff --git a/src/options/options.js b/src/options/options.js
new file mode 100644
index 0000000..442c446
--- /dev/null
+++ b/src/options/options.js
@@ -0,0 +1,24 @@
+import { getSettings, saveSettings } from '../lib/storage.js';
+
+const form = document.getElementById('form');
+const apiKey = document.getElementById('apiKey');
+const threshold = document.getElementById('threshold');
+const minViews = document.getElementById('minViews');
+const savedLabel = document.getElementById('saved');
+
+function fill(settings) {
+  apiKey.value = settings.apiKey;
+  threshold.value = settings.threshold;
+  minViews.value = settings.minViews;
+}
+
+fill(await getSettings());
+
+form.addEventListener('submit', async (event) => {
+  event.preventDefault();
+  fill(await saveSettings({ apiKey: apiKey.value, threshold: threshold.value, minViews: minViews.value }));
+  savedLabel.textContent = 'Сохранено';
+  setTimeout(() => {
+    savedLabel.textContent = '';
+  }, 2000);
+});