diff --git a/src/App.svelte b/src/App.svelte
index d681688..6f23d47 100644
--- a/src/App.svelte
+++ b/src/App.svelte
@@ -68,6 +68,17 @@
   let secretDescription = '';
   let secretValue = '';
   let secretError = '';
+  let overlays: Array<{ id: string; name: string; slug: string; draft_html: string; draft_css: string; draft_javascript: string; published: boolean; enabled: boolean; disabled_design: string }> = [];
+  let selectedOverlayId = '';
+  let overlayName = '';
+  let overlaySlug = '';
+  let overlayHtml = '';
+  let overlayCss = '';
+  let overlayJavascript = '';
+  let overlayEnabled = true;
+  let overlayDisabledDesign = 'transparent';
+  let overlayError = '';
+  let overlayBusy = false;
   let oauthScopes: Record<'streamer' | 'bot', { connected: boolean; missing_scopes: string[]; reauthorization_required: boolean }> = {
     streamer: { connected: false, missing_scopes: [], reauthorization_required: false },
     bot: { connected: false, missing_scopes: [], reauthorization_required: false },
@@ -122,6 +133,7 @@
       await loadCollaboration();
       await loadBotCommands();
       await loadBotSecrets();
+      await loadOverlays();
       await loadStreamInfo();
       connectRealtime();
       if (!mustReplaceCredentials) password = '';
@@ -571,6 +583,92 @@
     }
   }
 
+  async function loadOverlays() {
+    try {
+      const response = await fetch(`${serverAddress}/api/v1/overlays`, { headers: { authorization: `Bearer ${sessionToken}` } });
+      if (!response.ok) throw new Error('Overlays could not be loaded.');
+      overlays = await response.json();
+      if (!selectedOverlayId && overlays[0]) selectOverlay(overlays[0]);
+      overlayError = '';
+    } catch (error) {
+      overlayError = error instanceof Error ? error.message : 'Overlays could not be loaded.';
+    }
+  }
+
+  function selectOverlay(overlay: (typeof overlays)[number]) {
+    selectedOverlayId = overlay.id;
+    overlayName = overlay.name;
+    overlaySlug = overlay.slug;
+    overlayHtml = overlay.draft_html;
+    overlayCss = overlay.draft_css;
+    overlayJavascript = overlay.draft_javascript;
+    overlayEnabled = overlay.enabled;
+    overlayDisabledDesign = overlay.disabled_design;
+  }
+
+  async function createOverlay() {
+    selectedOverlayId = '';
+    overlayName = 'New Overlay';
+    overlaySlug = `overlay-${Date.now()}`;
+    overlayHtml = '<div class="alert">Hello ${username}</div>';
+    overlayCss = '.alert { color: white; font: 32px sans-serif; }';
+    overlayJavascript = '';
+    overlayEnabled = true;
+    overlayDisabledDesign = 'transparent';
+  }
+
+  async function saveOverlay() {
+    overlayBusy = true;
+    overlayError = '';
+    try {
+      const body = JSON.stringify({ name: overlayName, slug: overlaySlug, html: overlayHtml, css: overlayCss, javascript: overlayJavascript, disabled_design: overlayDisabledDesign });
+      const response = await fetch(selectedOverlayId ? `${serverAddress}/api/v1/overlays/${selectedOverlayId}` : `${serverAddress}/api/v1/overlays`, { method: selectedOverlayId ? 'PATCH' : 'POST', headers: { 'content-type': 'application/json', authorization: `Bearer ${sessionToken}` }, body });
+      if (!response.ok) throw new Error('The overlay draft could not be saved.');
+      const saved = await response.json();
+      await loadOverlays();
+      selectOverlay({ ...saved, enabled: overlayEnabled, disabled_design: overlayDisabledDesign });
+    } catch (error) {
+      overlayError = error instanceof Error ? error.message : 'The overlay draft could not be saved.';
+    } finally {
+      overlayBusy = false;
+    }
+  }
+
+  async function publishOverlay() {
+    if (!selectedOverlayId) return;
+    overlayBusy = true;
+    overlayError = '';
+    try {
+      const response = await fetch(`${serverAddress}/api/v1/overlays/${selectedOverlayId}/publish`, { method: 'POST', headers: { authorization: `Bearer ${sessionToken}` } });
+      if (!response.ok) throw new Error('The overlay could not be published.');
+      await loadOverlays();
+    } catch (error) {
+      overlayError = error instanceof Error ? error.message : 'The overlay could not be published.';
+    } finally {
+      overlayBusy = false;
+    }
+  }
+
+  async function undoOverlay() {
+    if (!selectedOverlayId) return;
+    overlayBusy = true;
+    overlayError = '';
+    try {
+      const response = await fetch(`${serverAddress}/api/v1/overlays/${selectedOverlayId}/undo`, { method: 'POST', headers: { authorization: `Bearer ${sessionToken}` } });
+      if (!response.ok) throw new Error('There is no previous published overlay to restore.');
+      await loadOverlays();
+    } catch (error) {
+      overlayError = error instanceof Error ? error.message : 'The previous overlay could not be restored.';
+    } finally {
+      overlayBusy = false;
+    }
+  }
+
+  async function copyOverlayUrl() {
+    if (!overlaySlug) return;
+    await navigator.clipboard.writeText(`${serverAddress}/overlay/${overlaySlug}`).catch(() => (overlayError = 'Copy was unavailable; select the URL manually.'));
+  }
+
   async function revokeOAuth(identity: 'streamer' | 'bot') {
     oauthBusy = true;
     oauthError = '';
@@ -685,6 +783,8 @@
         </section>
       {:else if activeView === 'Bot'}
       <section class="bot-page panel"><div class="panel-header"><span>BOT COMMANDS</span><button class="secondary" onclick={loadBotCommands}>REFRESH</button></div><div class="bot-page-body"><div class="micro">PUBLIC COMMAND CATALOG</div>{#if botCommandError}<div class="auth-error">{botCommandError}</div>{:else if botCommands.length}<div class="bot-command-list">{#each botCommands as command}<article class="bot-command-row"><div><strong>!{command.name}</strong><span class="bot-command-description">{command.description}</span>{#if command.tags.length}<div class="micro">{command.tags.join(' · ')}</div>{/if}</div><div class="bot-command-meta"><span>{command.permission_level.toUpperCase()}</span>{#if command.cooldown_seconds}<span>{command.cooldown_seconds}s / {command.cooldown_scope}</span>{/if}</div></article>{/each}</div>{:else}<div class="empty-state"><strong>No enabled commands</strong><span>Create commands on the server to make them available here.</span></div>{/if}<div class="bot-secret-section"><div class="micro">SECRETS MANAGEMENT</div><div class="bot-secret-note">Values are encrypted and cannot be read after saving.</div><div class="secret-form"><input class="control" bind:value={secretName} maxlength="100" placeholder="Name" /><input class="control" bind:value={secretDescription} maxlength="500" placeholder="Description" /><input class="control" type="password" bind:value={secretValue} maxlength="65536" placeholder="Value" /><button class="primary" onclick={createSecret} disabled={!secretName || !secretValue}>ADD SECRET</button></div>{#if botSecrets.length}<div class="bot-secret-list">{#each botSecrets as secret}<div class="bot-secret-row"><div><strong>{secret.name}</strong><span>{secret.description || 'No description'}</span>{#if secret.used_by.length}<div class="micro">USED BY: {secret.used_by.join(', ')}</div>{/if}</div><button class="secondary-action" onclick={() => deleteSecret(secret.id)}>DELETE</button></div>{/each}</div>{:else}<div class="empty-row">There are no secrets yet.</div>{/if}{#if secretError}<div class="auth-error">{secretError}</div>{/if}</div></div></section>
+      {:else if activeView === 'Overlays'}
+      <section class="overlay-page panel"><div class="panel-header"><span>OVERLAYS</span><div class="overlay-toolbar"><button class="secondary" onclick={createOverlay}>NEW</button><button class="secondary" onclick={loadOverlays}>REFRESH</button></div></div><div class="overlay-layout"><aside class="overlay-list">{#each overlays as overlay}<button class:active={selectedOverlayId === overlay.id} class="overlay-list-item" onclick={() => selectOverlay(overlay)}><strong>{overlay.name}</strong><span>{overlay.published ? 'PUBLISHED' : 'DRAFT'}</span></button>{/each}{#if !overlays.length}<div class="empty-row">No overlays yet.</div>{/if}</aside><div class="overlay-editor">{#if selectedOverlayId || overlayName}<div class="overlay-fields"><input class="control" bind:value={overlayName} maxlength="100" placeholder="Overlay name" /><input class="control" bind:value={overlaySlug} maxlength="100" placeholder="stable-slug" /></div><div class="overlay-tabs"><label class="micro" for="overlay-html">HTML</label><textarea id="overlay-html" class="overlay-code" bind:value={overlayHtml} spellcheck="false"></textarea><label class="micro" for="overlay-css">CSS</label><textarea id="overlay-css" class="overlay-code" bind:value={overlayCss} spellcheck="false"></textarea><label class="micro" for="overlay-javascript">JAVASCRIPT</label><textarea id="overlay-javascript" class="overlay-code" bind:value={overlayJavascript} spellcheck="false"></textarea></div><div class="overlay-preview-label micro">LIVE PREVIEW</div><iframe class="overlay-preview" title="Overlay preview" sandbox="allow-scripts" srcdoc={`<style>${overlayCss}</style>${overlayHtml}\u003cscript\u003e${overlayJavascript}\u003c/script\u003e`}></iframe><div class="overlay-controls"><button class="primary" onclick={saveOverlay} disabled={overlayBusy || !overlayName || !overlaySlug}>SAVE DRAFT</button><button class="secondary" onclick={publishOverlay} disabled={overlayBusy || !selectedOverlayId}>PUBLISH</button><button class="secondary" onclick={undoOverlay} disabled={overlayBusy || !selectedOverlayId}>UNDO PUBLISHED</button><button class="secondary" onclick={copyOverlayUrl} disabled={!overlaySlug}>COPY OBS URL</button></div>{#if overlayError}<div class="auth-error">{overlayError}</div>{/if}{:else}<div class="empty-state"><strong>Select or create an overlay</strong><span>Drafts autosave when explicitly saved; publishing controls the browser source.</span></div>{/if}</div></div></section>
       {:else}
       <div class="dashboard-grid">
         <section class="panel preview-panel"><div class="panel-header"><span>STREAM PREVIEW</span><span class="panel-menu">⋮</span></div>{#if playerSrc}<iframe class="twitch-player" title={`Twitch player for ${streamerName}`} src={playerSrc} allowfullscreen></iframe>{:else}<div class="preview-stage"><div class="offline-mark">STREAM OFFLINE</div><div class="offline-subtitle">CONNECT TWITCH TO BEGIN</div></div>{/if}<div class="panel-footer"><span class="micro">VIDEO PLAYER</span><span class="badge">{playerSrc ? streamerName : 'OFFLINE'}</span></div></section>
diff --git a/src/styles.css b/src/styles.css
index fe8f99c..fd578fc 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -576,6 +576,66 @@ label {
 .bot-secret-row span {
   display: block;
 }
+.overlay-page {
+  min-height: 100%;
+}
+.overlay-toolbar,
+.overlay-controls {
+  display: flex;
+  gap: 7px;
+}
+.overlay-layout {
+  display: grid;
+  grid-template-columns: 220px 1fr;
+  min-height: calc(100vh - 100px);
+}
+.overlay-list {
+  border-right: 1px solid var(--ui-divider);
+  padding: 10px;
+}
+.overlay-list-item {
+  display: grid;
+  width: 100%;
+  gap: 4px;
+  padding: 10px;
+  color: var(--ed-dim);
+  text-align: left;
+}
+.overlay-list-item.active,
+.overlay-list-item:hover {
+  color: var(--ed-cyan);
+  background: var(--ui-surface-hi);
+}
+.overlay-list-item span {
+  font: 9px var(--font-data);
+}
+.overlay-editor {
+  display: grid;
+  align-content: start;
+  gap: 10px;
+  padding: 14px;
+}
+.overlay-fields,
+.overlay-tabs {
+  display: grid;
+  gap: 7px;
+}
+.overlay-code {
+  min-height: 110px;
+  resize: vertical;
+  color: var(--ed-dim);
+  background: var(--ui-surface-low);
+  font: 12px/1.4 var(--font-data);
+}
+.overlay-preview-label {
+  margin-top: 4px;
+}
+.overlay-preview {
+  width: 100%;
+  min-height: 180px;
+  border: 1px solid var(--ui-divider);
+  background: #101217;
+}
 .bot-secret-row span {
   margin-top: 3px;
   color: var(--ed-dim);