diff --git a/web/src/app/home/pipelines/components/pipeline-extensions/PipelineExtension.tsx b/web/src/app/home/pipelines/components/pipeline-extensions/PipelineExtension.tsx
index 06e059f0..5408b9c7 100644
--- a/web/src/app/home/pipelines/components/pipeline-extensions/PipelineExtension.tsx
+++ b/web/src/app/home/pipelines/components/pipeline-extensions/PipelineExtension.tsx
@@ -146,6 +146,26 @@ export default function PipelineExtension({
     );
   };
 
+  const handleToggleAllPlugins = () => {
+    if (tempSelectedPluginIds.length === allPlugins.length) {
+      // Deselect all
+      setTempSelectedPluginIds([]);
+    } else {
+      // Select all
+      setTempSelectedPluginIds(allPlugins.map((p) => getPluginId(p)));
+    }
+  };
+
+  const handleToggleAllMCPServers = () => {
+    if (tempSelectedMCPIds.length === allMCPServers.length) {
+      // Deselect all
+      setTempSelectedMCPIds([]);
+    } else {
+      // Select all
+      setTempSelectedMCPIds(allMCPServers.map((s) => s.uuid || ''));
+    }
+  };
+
   const handleConfirmPluginSelection = async () => {
     const newSelected = allPlugins.filter((p) =>
       tempSelectedPluginIds.includes(getPluginId(p)),
@@ -330,6 +350,23 @@ export default function PipelineExtension({
           <DialogHeader>
             <DialogTitle>{t('pipelines.extensions.selectPlugins')}</DialogTitle>
           </DialogHeader>
+          {allPlugins.length > 0 && (
+            <div
+              className="flex items-center gap-3 px-1 py-2 border-b cursor-pointer"
+              onClick={handleToggleAllPlugins}
+            >
+              <Checkbox
+                checked={
+                  tempSelectedPluginIds.length === allPlugins.length &&
+                  allPlugins.length > 0
+                }
+                onCheckedChange={handleToggleAllPlugins}
+              />
+              <span className="text-sm font-medium">
+                {t('pipelines.extensions.selectAll')}
+              </span>
+            </div>
+          )}
           <div className="flex-1 overflow-y-auto space-y-2 pr-2">
             {allPlugins.length === 0 ? (
               <div className="flex h-full items-center justify-center">
@@ -404,6 +441,23 @@ export default function PipelineExtension({
               {t('pipelines.extensions.selectMCPServers')}
             </DialogTitle>
           </DialogHeader>
+          {allMCPServers.length > 0 && (
+            <div
+              className="flex items-center gap-3 px-1 py-2 border-b cursor-pointer"
+              onClick={handleToggleAllMCPServers}
+            >
+              <Checkbox
+                checked={
+                  tempSelectedMCPIds.length === allMCPServers.length &&
+                  allMCPServers.length > 0
+                }
+                onCheckedChange={handleToggleAllMCPServers}
+              />
+              <span className="text-sm font-medium">
+                {t('pipelines.extensions.selectAll')}
+              </span>
+            </div>
+          )}
           <div className="flex-1 overflow-y-auto space-y-2 pr-2">
             {allMCPServers.length === 0 ? (
               <div className="flex h-full items-center justify-center">
diff --git a/web/src/i18n/locales/en-US.ts b/web/src/i18n/locales/en-US.ts
index 92be517c..d674c22b 100644
--- a/web/src/i18n/locales/en-US.ts
+++ b/web/src/i18n/locales/en-US.ts
@@ -484,6 +484,7 @@ const enUS = {
       toolCount: '{{count}} tools',
       noPluginsInstalled: 'No installed plugins',
       noMCPServersConfigured: 'No configured MCP servers',
+      selectAll: 'Select All',
     },
     debugDialog: {
       title: 'Pipeline Chat',
diff --git a/web/src/i18n/locales/ja-JP.ts b/web/src/i18n/locales/ja-JP.ts
index 517d644d..59ba2c3c 100644
--- a/web/src/i18n/locales/ja-JP.ts
+++ b/web/src/i18n/locales/ja-JP.ts
@@ -487,6 +487,7 @@ const jaJP = {
       toolCount: '{{count}}個のツール',
       noPluginsInstalled: 'インストールされているプラグインがありません',
       noMCPServersConfigured: '設定されているMCPサーバーがありません',
+      selectAll: 'すべて選択',
     },
     debugDialog: {
       title: 'パイプラインのチャット',
diff --git a/web/src/i18n/locales/zh-Hans.ts b/web/src/i18n/locales/zh-Hans.ts
index 34156b53..6ea06616 100644
--- a/web/src/i18n/locales/zh-Hans.ts
+++ b/web/src/i18n/locales/zh-Hans.ts
@@ -466,6 +466,7 @@ const zhHans = {
       toolCount: '{{count}} 个工具',
       noPluginsInstalled: '无已安装的插件',
       noMCPServersConfigured: '无已配置的 MCP 服务器',
+      selectAll: '全选',
     },
     debugDialog: {
       title: '流水线对话',
diff --git a/web/src/i18n/locales/zh-Hant.ts b/web/src/i18n/locales/zh-Hant.ts
index b04425bd..14ed50bd 100644
--- a/web/src/i18n/locales/zh-Hant.ts
+++ b/web/src/i18n/locales/zh-Hant.ts
@@ -464,6 +464,7 @@ const zhHant = {
       toolCount: '{{count}} 個工具',
       noPluginsInstalled: '無已安裝的插件',
       noMCPServersConfigured: '無已配置的 MCP 伺服器',
+      selectAll: '全選',
     },
     debugDialog: {
       title: '流程線對話',