diff --git a/config/modules.php b/config/modules.php
index ca48f2c..2e8a9b9 100644
--- a/config/modules.php
+++ b/config/modules.php
@@ -12,5 +12,5 @@
  * Each entry must match a directory name under modules/ containing a module.php manifest.
  */
 return [
-    'enabled_modules' => ['audit', 'addressbook', 'bookmarks', 'notifications', 'api-docs'],
+    'enabled_modules' => ['audit', 'addressbook', 'bookmarks', 'notifications', 'api-docs', 'help-center'],
 ];
diff --git a/modules/help-center/i18n/default_de.json b/modules/help-center/i18n/default_de.json
new file mode 100644
index 0000000..6eb4c65
--- /dev/null
+++ b/modules/help-center/i18n/default_de.json
@@ -0,0 +1,16 @@
+{
+  "Help": "Hilfe",
+  "Documentation": "Dokumentation",
+  "Keyboard shortcuts": "Tastenkuerzel",
+  "Action": "Aktion",
+  "Shortcut": "Kuerzel",
+  "About": "Info",
+  "Application": "Anwendung",
+  "CoreCore Admin": "CoreCore Admin",
+  "Open search": "Suche oeffnen",
+  "Save in edit pages": "Speichern auf Bearbeitungsseiten",
+  "Toggle sidebar": "Seitenleiste umschalten",
+  "Switch sidebar section": "Seitenleisten-Bereich wechseln",
+  "Back": "Zurueck",
+  "Forward": "Vorwaerts"
+}
diff --git a/modules/help-center/i18n/default_en.json b/modules/help-center/i18n/default_en.json
new file mode 100644
index 0000000..3a82f52
--- /dev/null
+++ b/modules/help-center/i18n/default_en.json
@@ -0,0 +1,16 @@
+{
+  "Help": "Help",
+  "Documentation": "Documentation",
+  "Keyboard shortcuts": "Keyboard shortcuts",
+  "Action": "Action",
+  "Shortcut": "Shortcut",
+  "About": "About",
+  "Application": "Application",
+  "CoreCore Admin": "CoreCore Admin",
+  "Open search": "Open search",
+  "Save in edit pages": "Save in edit pages",
+  "Toggle sidebar": "Toggle sidebar",
+  "Switch sidebar section": "Switch sidebar section",
+  "Back": "Back",
+  "Forward": "Forward"
+}
diff --git a/modules/help-center/lib/Module/HelpCenter/HelpCenterContainerRegistrar.php b/modules/help-center/lib/Module/HelpCenter/HelpCenterContainerRegistrar.php
new file mode 100644
index 0000000..de5e88c
--- /dev/null
+++ b/modules/help-center/lib/Module/HelpCenter/HelpCenterContainerRegistrar.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace MintyPHP\Module\HelpCenter;
+
+use MintyPHP\App\AppContainer;
+use MintyPHP\App\Container\ContainerRegistrar;
+
+final class HelpCenterContainerRegistrar implements ContainerRegistrar
+{
+    public function register(AppContainer $container): void
+    {
+        // No services to register — help panel uses static utility classes only.
+    }
+}
diff --git a/modules/help-center/module.php b/modules/help-center/module.php
new file mode 100644
index 0000000..b9e70be
--- /dev/null
+++ b/modules/help-center/module.php
@@ -0,0 +1,54 @@
+<?php
+
+/**
+ * Help Center module manifest.
+ *
+ * Adds a help icon to the sidebar with documentation links,
+ * keyboard shortcuts reference, and system information.
+ */
+return [
+    'id' => 'help-center',
+    'version' => '1.0.0',
+    'enabled_by_default' => true,
+    'load_order' => 30,
+    'requires' => [],
+
+    'routes' => [],
+    'public_paths' => [],
+    'container_registrars' => [
+        \MintyPHP\Module\HelpCenter\HelpCenterContainerRegistrar::class,
+    ],
+
+    'ui_slots' => [
+        'aside.tab_panel' => [
+            [
+                'key' => 'help',
+                'label' => 'Help',
+                'icon' => 'bi-question-circle',
+                'href' => '',
+                'permission' => '',
+                'panel_template' => 'templates/aside-help-panel.phtml',
+                'order' => 900,
+            ],
+        ],
+        'layout.head_style' => [
+            [
+                'key' => 'help-center-style',
+                'path' => 'modules/help-center/css/components/app-help-panel.css',
+                'order' => 200,
+            ],
+        ],
+    ],
+
+    'authorization_policies' => [],
+    'search_resources' => [],
+    'asset_groups' => [],
+    'scheduler_jobs' => [],
+    'layout_context_providers' => [],
+    'session_providers' => [],
+    'permissions' => [],
+    'event_listeners' => [],
+    'deactivation_handler' => null,
+    'migrations_path' => null,
+    'i18n_path' => 'i18n',
+];
diff --git a/modules/help-center/templates/aside-help-panel.phtml b/modules/help-center/templates/aside-help-panel.phtml
new file mode 100644
index 0000000..af4a7f1
--- /dev/null
+++ b/modules/help-center/templates/aside-help-panel.phtml
@@ -0,0 +1,65 @@
+<?php
+
+use MintyPHP\Service\Docs\DocsCatalogService;
+use MintyPHP\Service\Ui\HotkeyService;
+
+$layoutAuth = is_array($viewAuth['layout'] ?? null) ? $viewAuth['layout'] : [];
+$canViewDocs = !empty($layoutAuth['can_view_docs']);
+$canViewApiDocs = !empty($layoutAuth['api_docs.view']);
+$hasDocumentation = $canViewDocs || $canViewApiDocs;
+
+$docsDefaultSlug = $canViewDocs ? DocsCatalogService::defaultSlug() : '';
+$docsUrl = $docsDefaultSlug !== '' ? lurl('admin/docs/' . $docsDefaultSlug) : '';
+$apiDocsUrl = $canViewApiDocs ? lurl('admin/api-docs') : '';
+
+$isMac = str_contains(strtolower((string) ($_SERVER['HTTP_USER_AGENT'] ?? '')), 'mac');
+$hotkeys = HotkeyService::list();
+?>
+<div class="app-help-panel">
+<?php if ($hasDocumentation): ?>
+  <div class="app-sidebar-group">
+    <h3 class="app-sidebar-title"><?php e(t('Documentation')); ?></h3>
+    <ul>
+      <?php if ($canViewDocs && $docsUrl !== ''): ?>
+        <li><a href="<?php e($docsUrl); ?>"><i class="bi bi-book"></i> <?php e(t('Documentation')); ?></a></li>
+      <?php endif; ?>
+      <?php if ($canViewApiDocs): ?>
+        <li><a href="<?php e($apiDocsUrl); ?>"><i class="bi bi-braces"></i> <?php e(t('API docs')); ?></a></li>
+      <?php endif; ?>
+    </ul>
+  </div>
+<?php endif; ?>
+
+  <div class="app-sidebar-group">
+    <h3 class="app-sidebar-title"><?php e(t('Keyboard shortcuts')); ?></h3>
+    <table class="app-help-shortcuts-table" role="grid">
+      <thead>
+        <tr>
+          <th scope="col"><?php e(t('Action')); ?></th>
+          <th scope="col"><?php e(t('Shortcut')); ?></th>
+        </tr>
+      </thead>
+      <tbody>
+        <?php foreach ($hotkeys as $hotkey):
+          $shortcut = $isMac ? ($hotkey['mac'] ?? '') : ($hotkey['win'] ?? '');
+          $action = t($hotkey['action_key'] ?? '');
+        ?>
+          <tr>
+            <td><?php e($action); ?></td>
+            <td><kbd><?php e($shortcut); ?></kbd></td>
+          </tr>
+        <?php endforeach; ?>
+      </tbody>
+    </table>
+  </div>
+
+  <div class="app-sidebar-group">
+    <h3 class="app-sidebar-title"><?php e(t('About')); ?></h3>
+    <ul>
+      <li class="app-help-about-item">
+        <span class="app-help-about-label"><?php e(t('Application')); ?></span>
+        <span class="app-help-about-value"><?php e(t('CoreCore Admin')); ?></span>
+      </li>
+    </ul>
+  </div>
+</div>
diff --git a/modules/help-center/web/css/components/app-help-panel.css b/modules/help-center/web/css/components/app-help-panel.css
new file mode 100644
index 0000000..6e1b5bf
--- /dev/null
+++ b/modules/help-center/web/css/components/app-help-panel.css
@@ -0,0 +1,103 @@
+@layer components {
+.app-help-panel {
+  padding: var(--app-spacing);
+}
+
+.app-help-panel .app-sidebar-title {
+  text-transform: uppercase;
+  font-size: var(--app-text-2xs);
+  font-weight: 600;
+  color: var(--app-muted-color);
+  margin: 0 0 0.5rem;
+  letter-spacing: 0.03em;
+}
+
+.app-help-panel .app-sidebar-group {
+  margin-bottom: calc(var(--app-spacing) * 1.5);
+}
+
+.app-help-panel .app-sidebar-group ul {
+  list-style: none;
+  margin: 0;
+  padding: 0;
+}
+
+.app-help-panel .app-sidebar-group ul li a {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  padding: 0.35rem 0.5rem;
+  border-radius: var(--app-border-radius);
+  color: var(--app-color);
+  text-decoration: none;
+  font-size: var(--app-text-sm);
+  transition: background-color 0.15s;
+}
+
+.app-help-panel .app-sidebar-group ul li a:hover {
+  background-color: var(--app-accordion-border-color);
+}
+
+.app-help-panel .app-sidebar-group ul li a i {
+  font-size: 1rem;
+  opacity: 0.65;
+}
+
+.app-help-shortcuts-table {
+  width: 100%;
+  border-collapse: collapse;
+  font-size: var(--app-text-sm);
+}
+
+.app-help-shortcuts-table th,
+.app-help-shortcuts-table td {
+  padding: 0.3rem 0.5rem;
+  text-align: left;
+  border: none;
+  background: transparent;
+}
+
+.app-help-shortcuts-table th {
+  font-weight: 600;
+  color: var(--app-muted-color);
+  font-size: var(--app-text-2xs);
+  text-transform: uppercase;
+  letter-spacing: 0.03em;
+  border-bottom: 1px solid var(--app-border);
+}
+
+.app-help-shortcuts-table td {
+  border-bottom: 1px solid var(--app-border);
+}
+
+.app-help-shortcuts-table tr:last-child td {
+  border-bottom: none;
+}
+
+.app-help-shortcuts-table kbd {
+  display: inline-block;
+  padding: 0.1rem 0.35rem;
+  font-size: var(--app-text-xs);
+  font-family: var(--app-font-family-mono, monospace);
+  background: var(--app-card-background-color);
+  border: 1px solid var(--app-border);
+  border-radius: 3px;
+  box-shadow: 0 1px 0 var(--app-border);
+  white-space: nowrap;
+}
+
+.app-help-about-item {
+  display: flex;
+  justify-content: space-between;
+  padding: 0.35rem 0.5rem;
+  font-size: var(--app-text-sm);
+}
+
+.app-help-about-label {
+  color: var(--app-muted-color);
+}
+
+.app-help-about-value {
+  font-weight: 500;
+}
+}