diff --git a/frontend/src/components/form/SelectAllClearButtons.tsx b/frontend/src/components/form/SelectAllClearButtons.tsx
new file mode 100644
index 000000000..2c3c71c04
--- /dev/null
+++ b/frontend/src/components/form/SelectAllClearButtons.tsx
@@ -0,0 +1,51 @@
+import { useTranslation } from 'react-i18next';
+import { Button } from 'antd';
+
+interface Option {
+  value: number;
+}
+
+interface SelectAllClearButtonsProps {
+  options: Option[];
+  value: number[];
+  onChange: (value: number[]) => void;
+  /** Override the default "Select all" label (defaults to the inbound copy). */
+  selectAllLabel?: string;
+  /** Override the default "Clear all" label (defaults to the inbound copy). */
+  clearLabel?: string;
+}
+
+export default function SelectAllClearButtons({
+  options,
+  value,
+  onChange,
+  selectAllLabel,
+  clearLabel,
+}: SelectAllClearButtonsProps) {
+  const { t } = useTranslation();
+
+  const optionValues = options.map((o) => o.value);
+  // Treat as "all selected" when every option is chosen, rather than comparing
+  // lengths — this stays correct even if `value` holds ids outside `options`.
+  const allSelected = options.length > 0 && optionValues.every((v) => value.includes(v));
+
+  return (
+    <div style={{ display: 'flex', gap: 8, marginBottom: 8 }}>
+      <Button
+        size="small"
+        disabled={allSelected}
+        // Union with the current value so selections outside `options` are kept.
+        onClick={() => onChange(Array.from(new Set([...value, ...optionValues])))}
+      >
+        {selectAllLabel ?? t('pages.clients.selectAllInbounds')}
+      </Button>
+      <Button
+        size="small"
+        disabled={value.length === 0}
+        onClick={() => onChange([])}
+      >
+        {clearLabel ?? t('pages.clients.clearAllInbounds')}
+      </Button>
+    </div>
+  );
+}
diff --git a/frontend/src/components/form/index.ts b/frontend/src/components/form/index.ts
index 9f3e37137..0a5785541 100644
--- a/frontend/src/components/form/index.ts
+++ b/frontend/src/components/form/index.ts
@@ -1,3 +1,4 @@
 export { default as DateTimePicker } from './DateTimePicker';
 export { default as JsonEditor } from './JsonEditor';
 export { default as HeaderMapEditor } from './HeaderMapEditor';
+export { default as SelectAllClearButtons } from './SelectAllClearButtons';
diff --git a/frontend/src/pages/clients/BulkAttachInboundsModal.tsx b/frontend/src/pages/clients/BulkAttachInboundsModal.tsx
index 800e15747..1fd397a3e 100644
--- a/frontend/src/pages/clients/BulkAttachInboundsModal.tsx
+++ b/frontend/src/pages/clients/BulkAttachInboundsModal.tsx
@@ -2,6 +2,7 @@ import { useEffect, useMemo, useState } from 'react';
 import { useTranslation } from 'react-i18next';
 import { Alert, Modal, Select, Typography, message } from 'antd';
 
+import { SelectAllClearButtons } from '@/components/form';
 import type { InboundOption } from '@/hooks/useClients';
 import { formatInboundLabel } from '@/lib/inbounds/label';
 import type { BulkAttachResult } from '@/schemas/client';
@@ -82,16 +83,23 @@ export default function BulkAttachInboundsModal({
         {targetOptions.length === 0 ? (
           <Alert type="info" showIcon message={t('pages.clients.attachToInboundsNoTargets')} />
         ) : (
-          <Select
-            mode="multiple"
-            style={{ width: '100%' }}
-            value={targetIds}
-            onChange={setTargetIds}
-            options={targetOptions}
-            placeholder={t('pages.clients.attachToInboundsTargets')}
-            optionFilterProp="label"
-            autoFocus
-          />
+          <>
+            <SelectAllClearButtons
+              options={targetOptions}
+              value={targetIds}
+              onChange={setTargetIds}
+            />
+            <Select
+              mode="multiple"
+              style={{ width: '100%' }}
+              value={targetIds}
+              onChange={setTargetIds}
+              options={targetOptions}
+              placeholder={t('pages.clients.attachToInboundsTargets')}
+              optionFilterProp="label"
+              autoFocus
+            />
+          </>
         )}
       </Modal>
     </>
diff --git a/frontend/src/pages/clients/BulkDetachInboundsModal.tsx b/frontend/src/pages/clients/BulkDetachInboundsModal.tsx
index 2c120d47d..d3851f573 100644
--- a/frontend/src/pages/clients/BulkDetachInboundsModal.tsx
+++ b/frontend/src/pages/clients/BulkDetachInboundsModal.tsx
@@ -2,6 +2,7 @@ import { useEffect, useMemo, useState } from 'react';
 import { useTranslation } from 'react-i18next';
 import { Alert, Modal, Select, Typography, message } from 'antd';
 
+import { SelectAllClearButtons } from '@/components/form';
 import type { InboundOption } from '@/hooks/useClients';
 import { formatInboundLabel } from '@/lib/inbounds/label';
 import type { BulkDetachResult } from '@/schemas/client';
@@ -82,16 +83,23 @@ export default function BulkDetachInboundsModal({
         {targetOptions.length === 0 ? (
           <Alert type="info" showIcon message={t('pages.clients.detachFromInboundsNoTargets')} />
         ) : (
-          <Select
-            mode="multiple"
-            style={{ width: '100%' }}
-            value={targetIds}
-            onChange={setTargetIds}
-            options={targetOptions}
-            placeholder={t('pages.clients.detachFromInboundsTargets')}
-            optionFilterProp="label"
-            autoFocus
-          />
+          <>
+            <SelectAllClearButtons
+              options={targetOptions}
+              value={targetIds}
+              onChange={setTargetIds}
+            />
+            <Select
+              mode="multiple"
+              style={{ width: '100%' }}
+              value={targetIds}
+              onChange={setTargetIds}
+              options={targetOptions}
+              placeholder={t('pages.clients.detachFromInboundsTargets')}
+              optionFilterProp="label"
+              autoFocus
+            />
+          </>
         )}
       </Modal>
     </>
diff --git a/frontend/src/pages/clients/ClientBulkAddModal.tsx b/frontend/src/pages/clients/ClientBulkAddModal.tsx
index 20dedc792..8d25d850c 100644
--- a/frontend/src/pages/clients/ClientBulkAddModal.tsx
+++ b/frontend/src/pages/clients/ClientBulkAddModal.tsx
@@ -8,7 +8,7 @@ import type { Dayjs } from 'dayjs';
 import { RandomUtil, SizeFormatter } from '@/utils';
 import { formatInboundLabel } from '@/lib/inbounds/label';
 import { TLS_FLOW_CONTROL } from '@/schemas/primitives';
-import { DateTimePicker } from '@/components/form';
+import { DateTimePicker, SelectAllClearButtons } from '@/components/form';
 import { useClients, type InboundOption } from '@/hooks/useClients';
 import { ClientBulkAddFormSchema, type ClientBulkAddFormValues } from '@/schemas/client';
 
@@ -213,6 +213,11 @@ export default function ClientBulkAddModal({
       >
         <Form colon={false} labelCol={{ sm: { span: 8 } }} wrapperCol={{ sm: { span: 14 } }}>
           <Form.Item label={t('pages.clients.attachedInbounds')} required>
+            <SelectAllClearButtons
+              options={inboundOptions}
+              value={form.inboundIds}
+              onChange={(v) => update('inboundIds', v)}
+            />
             <Select
               mode="multiple"
               value={form.inboundIds}
diff --git a/frontend/src/pages/clients/ClientFormModal.tsx b/frontend/src/pages/clients/ClientFormModal.tsx
index 016cf03d1..cb18441bc 100644
--- a/frontend/src/pages/clients/ClientFormModal.tsx
+++ b/frontend/src/pages/clients/ClientFormModal.tsx
@@ -18,10 +18,9 @@ import {
 import { EyeOutlined, ReloadOutlined } from '@ant-design/icons';
 import dayjs from 'dayjs';
 import type { Dayjs } from 'dayjs';
-
 import { HttpUtil, RandomUtil } from '@/utils';
 import { formatInboundLabel } from '@/lib/inbounds/label';
-import { DateTimePicker } from '@/components/form';
+import { DateTimePicker, SelectAllClearButtons } from '@/components/form';
 import { TLS_FLOW_CONTROL } from '@/schemas/primitives';
 import type { ClientRecord, InboundOption } from '@/hooks/useClients';
 import { ClientFormSchema, ClientCreateFormSchema } from '@/schemas/client';
@@ -601,6 +600,11 @@ export default function ClientFormModal({
           </Row>
 
           <Form.Item label={t('pages.clients.attachedInbounds')} required={!isEdit}>
+            <SelectAllClearButtons
+              options={inboundOptions}
+              value={form.inboundIds}
+              onChange={(v) => update('inboundIds', v)}
+            />
             <Select
               mode="multiple"
               value={form.inboundIds}
diff --git a/internal/web/translation/ar-EG.json b/internal/web/translation/ar-EG.json
index eed401bc5..e0c4e0fc9 100644
--- a/internal/web/translation/ar-EG.json
+++ b/internal/web/translation/ar-EG.json
@@ -703,6 +703,8 @@
       "duration": "المدة",
       "attachedInbounds": "الاتصالات الواردة المرتبطة",
       "selectInbound": "حدد اتصالاً واردًا واحدًا أو أكثر",
+      "selectAllInbounds": "تحديد الكل",
+      "clearAllInbounds": "مسح الكل",
       "noSubId": "هذا العميل ليس لديه subId، لا يوجد رابط قابل للمشاركة.",
       "noLinks": "لا توجد روابط للمشاركة — قم بإرفاق هذا العميل بأحد الاتصالات الواردة الداعمة للبروتوكول أولاً.",
       "link": "الرابط",
diff --git a/internal/web/translation/en-US.json b/internal/web/translation/en-US.json
index 1cbacbff1..d8441ce4d 100644
--- a/internal/web/translation/en-US.json
+++ b/internal/web/translation/en-US.json
@@ -704,6 +704,8 @@
       "duration": "Duration",
       "attachedInbounds": "Attached inbounds",
       "selectInbound": "Select one or more inbounds",
+      "selectAllInbounds": "Select all",
+      "clearAllInbounds": "Clear all",
       "noSubId": "This client has no subId, no shareable link.",
       "noLinks": "No shareable links — attach this client to a protocol-capable inbound first.",
       "link": "Link",
diff --git a/internal/web/translation/es-ES.json b/internal/web/translation/es-ES.json
index 4b6732b23..381f84a65 100644
--- a/internal/web/translation/es-ES.json
+++ b/internal/web/translation/es-ES.json
@@ -703,6 +703,8 @@
       "duration": "Duración",
       "attachedInbounds": "Inbounds asociados",
       "selectInbound": "Selecciona uno o más inbounds",
+      "selectAllInbounds": "Seleccionar todo",
+      "clearAllInbounds": "Limpiar todo",
       "noSubId": "Este cliente no tiene subId, no hay enlace compartible.",
       "noLinks": "No hay enlaces compartibles — asocia primero este cliente a un inbound con protocolo válido.",
       "link": "Enlace",
diff --git a/internal/web/translation/fa-IR.json b/internal/web/translation/fa-IR.json
index 1c2739988..b76930788 100644
--- a/internal/web/translation/fa-IR.json
+++ b/internal/web/translation/fa-IR.json
@@ -703,6 +703,8 @@
       "duration": "مدت",
       "attachedInbounds": "اینباندهای متصل",
       "selectInbound": "یک یا چند اینباند انتخاب کنید",
+      "selectAllInbounds": "انتخاب همه",
+      "clearAllInbounds": "پاک کردن همه",
       "noSubId": "این کلاینت subId ندارد، لینک اشتراک‌گذاری وجود ندارد.",
       "noLinks": "لینکی برای اشتراک‌گذاری نیست — ابتدا این کلاینت را به یک اینباند با پروتکل سازگار متصل کنید.",
       "link": "لینک",
diff --git a/internal/web/translation/id-ID.json b/internal/web/translation/id-ID.json
index 8e84a62c7..ebb54b343 100644
--- a/internal/web/translation/id-ID.json
+++ b/internal/web/translation/id-ID.json
@@ -703,6 +703,8 @@
       "duration": "Durasi",
       "attachedInbounds": "Inbound terlampir",
       "selectInbound": "Pilih satu atau lebih inbound",
+      "selectAllInbounds": "Pilih semua",
+      "clearAllInbounds": "Hapus semua",
       "noSubId": "Klien ini tidak punya subId, tidak ada tautan yang bisa dibagikan.",
       "noLinks": "Tidak ada tautan yang bisa dibagikan — lampirkan klien ini ke inbound yang mendukung protokol terlebih dahulu.",
       "link": "Tautan",
diff --git a/internal/web/translation/ja-JP.json b/internal/web/translation/ja-JP.json
index 85d9f3770..21047d9d6 100644
--- a/internal/web/translation/ja-JP.json
+++ b/internal/web/translation/ja-JP.json
@@ -703,6 +703,8 @@
       "duration": "期間",
       "attachedInbounds": "関連付けされたインバウンド",
       "selectInbound": "1 つ以上のインバウンドを選択",
+      "selectAllInbounds": "すべて選択",
+      "clearAllInbounds": "すべてクリア",
       "noSubId": "このクライアントには subId がなく、共有可能なリンクはありません。",
       "noLinks": "共有可能なリンクがありません — まずこのクライアントを対応するプロトコルのインバウンドに関連付けてください。",
       "link": "リンク",
diff --git a/internal/web/translation/pt-BR.json b/internal/web/translation/pt-BR.json
index 942b968e8..e9529b8d0 100644
--- a/internal/web/translation/pt-BR.json
+++ b/internal/web/translation/pt-BR.json
@@ -703,6 +703,8 @@
       "duration": "Duração",
       "attachedInbounds": "Inbounds associados",
       "selectInbound": "Selecione um ou mais inbounds",
+      "selectAllInbounds": "Selecionar tudo",
+      "clearAllInbounds": "Limpar tudo",
       "noSubId": "Este cliente não tem subId, sem link compartilhável.",
       "noLinks": "Sem links compartilháveis — associe primeiro este cliente a um inbound compatível com o protocolo.",
       "link": "Link",
diff --git a/internal/web/translation/ru-RU.json b/internal/web/translation/ru-RU.json
index e7ec1b736..7514210bb 100644
--- a/internal/web/translation/ru-RU.json
+++ b/internal/web/translation/ru-RU.json
@@ -703,6 +703,8 @@
       "duration": "Длительность",
       "attachedInbounds": "Привязанные входящие",
       "selectInbound": "Выберите один или несколько входящих",
+      "selectAllInbounds": "Выбрать всё",
+      "clearAllInbounds": "Очистить всё",
       "noSubId": "У этого клиента нет subId, ссылка для общего доступа недоступна.",
       "noLinks": "Нет ссылок для общего доступа — сначала привяжите клиента к входящему с поддерживаемым протоколом.",
       "link": "Ссылка",
diff --git a/internal/web/translation/tr-TR.json b/internal/web/translation/tr-TR.json
index 9710abbcc..fd172d9b2 100644
--- a/internal/web/translation/tr-TR.json
+++ b/internal/web/translation/tr-TR.json
@@ -704,6 +704,8 @@
       "duration": "Süre",
       "attachedInbounds": "Bağlı Gelen Bağlantılar",
       "selectInbound": "Bir veya Daha Fazla Gelen Bağlantı Seçin",
+      "selectAllInbounds": "Tümünü Seç",
+      "clearAllInbounds": "Tümünü Temizle",
       "noSubId": "Bu kullanıcının subId'si yok, dolayısıyla paylaşılabilir bir bağlantısı bulunmuyor.",
       "noLinks": "Paylaşılabilir bağlantı yok — önce bu kullanıcıyı bir protokole sahip olan gelen bağlantıya bağlayın.",
       "link": "Bağlantı",
@@ -1705,4 +1707,3 @@
     }
   }
 }
-
diff --git a/internal/web/translation/uk-UA.json b/internal/web/translation/uk-UA.json
index e2efa3bc5..1fe7baf06 100644
--- a/internal/web/translation/uk-UA.json
+++ b/internal/web/translation/uk-UA.json
@@ -703,6 +703,8 @@
       "duration": "Тривалість",
       "attachedInbounds": "Прив'язані вхідні",
       "selectInbound": "Виберіть один або кілька вхідних",
+      "selectAllInbounds": "Вибрати все",
+      "clearAllInbounds": "Очистити все",
       "noSubId": "У цього клієнта немає subId, посилання для спільного доступу відсутнє.",
       "noLinks": "Немає посилань для спільного доступу — спочатку прив'яжіть цього клієнта до вхідного з підтримкою протоколу.",
       "link": "Посилання",
diff --git a/internal/web/translation/vi-VN.json b/internal/web/translation/vi-VN.json
index 26f6e1218..3098f3a95 100644
--- a/internal/web/translation/vi-VN.json
+++ b/internal/web/translation/vi-VN.json
@@ -703,6 +703,8 @@
       "duration": "Thời hạn",
       "attachedInbounds": "Inbound đã gắn",
       "selectInbound": "Chọn một hoặc nhiều inbound",
+      "selectAllInbounds": "Chọn tất cả",
+      "clearAllInbounds": "Xóa tất cả",
       "noSubId": "Khách hàng này không có subId, không có liên kết chia sẻ.",
       "noLinks": "Không có liên kết chia sẻ — hãy gắn khách hàng này vào một inbound có giao thức tương thích trước.",
       "link": "Liên kết",
diff --git a/internal/web/translation/zh-CN.json b/internal/web/translation/zh-CN.json
index ced2ae348..3d7710b09 100644
--- a/internal/web/translation/zh-CN.json
+++ b/internal/web/translation/zh-CN.json
@@ -703,6 +703,8 @@
       "duration": "时长",
       "attachedInbounds": "关联入站",
       "selectInbound": "选择一个或多个入站",
+      "selectAllInbounds": "全选",
+      "clearAllInbounds": "全部清除",
       "noSubId": "该客户端没有 subId，无法生成共享链接。",
       "noLinks": "没有可共享的链接 — 请先将此客户端关联到支持协议的入站。",
       "link": "链接",
diff --git a/internal/web/translation/zh-TW.json b/internal/web/translation/zh-TW.json
index 4d28ed63c..55ea4d020 100644
--- a/internal/web/translation/zh-TW.json
+++ b/internal/web/translation/zh-TW.json
@@ -703,6 +703,8 @@
       "duration": "時長",
       "attachedInbounds": "關聯入站",
       "selectInbound": "選擇一個或多個入站",
+      "selectAllInbounds": "全選",
+      "clearAllInbounds": "全部清除",
       "noSubId": "此客戶端沒有 subId，無法產生共享連結。",
       "noLinks": "沒有可共享的連結 — 請先將此客戶端關聯至支援協定的入站。",
       "link": "連結",