diff --git a/apps/desktop/src/components/grid/DataGrid.vue b/apps/desktop/src/components/grid/DataGrid.vue
index 635a8b2b5..e55bd2658 100644
--- a/apps/desktop/src/components/grid/DataGrid.vue
+++ b/apps/desktop/src/components/grid/DataGrid.vue
@@ -6,7 +6,8 @@ import {
   ArrowDown,
   ArrowUpDown,
   ArrowUpRight,
-  Upload,
+  Download,
+  FileUp,
   Trash2,
   ChevronDown,
   ChevronUp,
@@ -122,12 +123,17 @@ import { getApplicablePreviewActions } from "@/lib/dataGrid/resultPreviewRegistr
 import "@/lib/dataGrid/geometryMapPreview";
 import {
   BINARY_CELL_DOWNLOAD_MODES,
+  BinaryCellImportTooLargeError,
+  binaryCellBytesToHexValue,
   binaryCellDisplayText,
   binaryCellDownloadFileName,
   binaryCellDownloadPayload,
+  canImportBinaryCellFile,
   canDownloadBinaryCellValue,
   downloadBinaryCellPayload,
+  formatBinaryCellByteSize,
   isBinaryCellColumnType,
+  openBinaryCellFile,
   parseBinaryCellBytes,
   retainBinaryCellDownloadMenuForHover,
   type BinaryCellDownloadMode,
@@ -7063,6 +7069,39 @@ function canDownloadDetailBinaryValue(detail: DataGridCellDetail | null): boolea
   return !!detail && canDownloadBinaryCellValue(detail.value, detail.type);
 }
 
+function canImportDetailBinaryValue(detail: DataGridCellDetail | null): boolean {
+  return !!detail?.isEditable && canImportBinaryCellFile(resolvedDatabaseType.value, detail.type);
+}
+
+async function importDetailBinaryValue(detail: DataGridCellDetail | null) {
+  if (!detail || !canImportDetailBinaryValue(detail)) return;
+  try {
+    const bytes = await openBinaryCellFile();
+    if (!bytes) return;
+    const value = binaryCellBytesToHexValue(bytes);
+    applyCellValue(detail.rowId, detail.colIndex, value);
+    if (activeCellDetail.value?.rowId === detail.rowId && activeCellDetail.value.colIndex === detail.colIndex) {
+      detailEditValue.value = value;
+      detailEditOriginalValue.value = value;
+      syncEditorFromDetailEdit();
+      detailCell.value = detailCell.value ? { ...detailCell.value } : null;
+    }
+    toast(t("grid.binaryImportApplied", { count: bytes.length }));
+  } catch (e: any) {
+    if (e instanceof BinaryCellImportTooLargeError) {
+      toast(
+        t("grid.binaryImportTooLarge", {
+          size: formatBinaryCellByteSize(e.bytes),
+          limit: formatBinaryCellByteSize(e.limit),
+        }),
+        5000,
+      );
+      return;
+    }
+    toast(t("grid.binaryImportFailed", { message: e?.message || String(e) }), 5000);
+  }
+}
+
 function canQuickDownloadCellValue(rowIndex: number, columnIndex: number): boolean {
   return canDownloadDetailBinaryValue(cellDetailFor(rowIndex, columnIndex));
 }
@@ -7096,7 +7135,7 @@ function binaryDownloadSubmenu(detail: DataGridCellDetail | null): ContextMenuIt
   if (!canDownloadDetailBinaryValue(detail)) return null;
   return {
     label: t("grid.downloadBinaryValue"),
-    icon: Upload,
+    icon: Download,
     children: BINARY_CELL_DOWNLOAD_MODES.map((mode) => ({
       label: t(`grid.binaryDownload.${mode}`),
       action: () => {
@@ -7106,6 +7145,17 @@ function binaryDownloadSubmenu(detail: DataGridCellDetail | null): ContextMenuIt
   };
 }
 
+function binaryImportItem(detail: DataGridCellDetail | null): ContextMenuItem | null {
+  if (!canImportDetailBinaryValue(detail)) return null;
+  return {
+    label: t("grid.importBinaryValue"),
+    icon: FileUp,
+    action: () => {
+      void importDetailBinaryValue(detail);
+    },
+  };
+}
+
 async function copyDetailSqlCondition() {
   if (!canCopyPreparedDetailSqlCondition()) return;
   copyText(detailSqlConditionCopy.value.text);
@@ -8846,7 +8896,7 @@ function exportSubmenu(): ContextMenuItem {
       { label: t("grid.exportSelectedRowsTxt"), action: exportSelectedRowsTxt },
     );
   }
-  return { label: t("grid.export"), icon: Upload, children: items };
+  return { label: t("grid.export"), icon: Download, children: items };
 }
 
 const gridContextMenuItems = computed<ContextMenuItem[]>(() => {
@@ -8939,6 +8989,7 @@ const gridContextMenuItems = computed<ContextMenuItem[]>(() => {
       },
       icons: { cellDetails: Maximize2, columnDetails: TableProperties, rowDetails: ListTree, setNull: X, bulkEdit: Pencil, transpose: Rows3 },
       actions: { cellDetails: openContextCellDetailDialog, columnDetails: openContextColumnDetailDialog, rowDetails: openContextRowDetailDialog, setNull: setSelectionNull, bulkEdit: openBulkEditDialog, transpose: openContextTranspose },
+      importItem: binaryImportItem(contextCellDetail.value),
       downloadItem: binaryDownloadSubmenu(contextCellDetail.value),
       foreignKeyItem: contextForeignKeyMenuItem(),
       copySubmenu: copySubmenu(),
@@ -9376,7 +9427,7 @@ const gridContextMenuItems = computed<ContextMenuItem[]>(() => {
                           >
                             <template #trigger="{ open, toggle }">
                               <button class="flex h-5 w-5 items-center justify-center rounded bg-background/90 text-muted-foreground shadow-sm ring-1 ring-border hover:text-foreground" :title="t('grid.downloadBinaryValue')" :aria-expanded="open" @mousedown.stop @click.stop="toggle">
-                                <Upload class="h-3 w-3" />
+                                <Download class="h-3 w-3" />
                               </button>
                             </template>
                           </LightDropdownMenu>
@@ -9890,7 +9941,7 @@ const gridContextMenuItems = computed<ContextMenuItem[]>(() => {
                       >
                         <template #trigger="{ open, toggle }">
                           <button class="flex h-5 w-5 items-center justify-center rounded bg-background/90 text-muted-foreground shadow-sm ring-1 ring-border hover:text-foreground" :title="t('grid.downloadBinaryValue')" :aria-expanded="open" @mousedown.stop @click.stop="toggle">
-                            <Upload class="h-3 w-3" />
+                            <Download class="h-3 w-3" />
                           </button>
                         </template>
                       </LightDropdownMenu>
@@ -10093,7 +10144,7 @@ const gridContextMenuItems = computed<ContextMenuItem[]>(() => {
                             >
                               <template #trigger="{ open, toggle }">
                                 <button class="flex h-5 w-5 items-center justify-center rounded bg-background/90 text-muted-foreground shadow-sm ring-1 ring-border hover:text-foreground" :title="t('grid.downloadBinaryValue')" :aria-expanded="open" @mousedown.stop @click.stop="toggle">
-                                  <Upload class="h-3 w-3" />
+                                  <Download class="h-3 w-3" />
                                 </button>
                               </template>
                             </LightDropdownMenu>
@@ -10408,6 +10459,8 @@ const gridContextMenuItems = computed<ContextMenuItem[]>(() => {
                 :type-color-class="typeColorClass"
                 :can-download-binary-value="canDownloadDetailBinaryValue"
                 :download-binary-value="downloadDetailBinaryValue"
+                :can-import-binary-value="canImportDetailBinaryValue"
+                :import-binary-value="importDetailBinaryValue"
                 :open-image-preview="openImagePreview"
                 :can-copy-sql-condition="canCopyPreparedDetailSqlCondition"
                 @start-edit="startDetailEdit"
@@ -10582,6 +10635,8 @@ const gridContextMenuItems = computed<ContextMenuItem[]>(() => {
       :copy-text="copyText"
       :can-download-binary-value="canDownloadDetailBinaryValue"
       :download-binary-value="downloadDetailBinaryValue"
+      :can-import-binary-value="canImportDetailBinaryValue"
+      :import-binary-value="importDetailBinaryValue"
       @edit="openDialogCellInSidePanel"
     />
 
diff --git a/apps/desktop/src/components/grid/DataGridCellDetailDialog.vue b/apps/desktop/src/components/grid/DataGridCellDetailDialog.vue
index 623e7caa8..c8bdc3882 100644
--- a/apps/desktop/src/components/grid/DataGridCellDetailDialog.vue
+++ b/apps/desktop/src/components/grid/DataGridCellDetailDialog.vue
@@ -1,6 +1,6 @@
 <script setup lang="ts">
 import { computed, nextTick, ref, watch } from "vue";
-import { Code2, Copy, Eye, Info, Pencil, Upload } from "@lucide/vue";
+import { Code2, Copy, Download, Eye, FileUp, Info, Pencil } from "@lucide/vue";
 import { useI18n } from "vue-i18n";
 import { Button } from "@/components/ui/button";
 import { Dialog, DialogContent, DialogFooter, DialogHeader, DialogTitle } from "@/components/ui/dialog";
@@ -25,6 +25,8 @@ const props = defineProps<{
   copyText: (text: string) => void;
   canDownloadBinaryValue: (detail: DataGridCellDetail | null) => boolean;
   downloadBinaryValue: (detail: DataGridCellDetail | null, mode: BinaryCellDownloadMode) => void | Promise<void>;
+  canImportBinaryValue: (detail: DataGridCellDetail | null) => boolean;
+  importBinaryValue: (detail: DataGridCellDetail | null) => void | Promise<void>;
 }>();
 
 const emit = defineEmits<{
@@ -152,10 +154,13 @@ watch(
               <Button variant="ghost" size="icon" class="h-6 w-6" :title="t('grid.copyValue')" @click="copyCurrentValue">
                 <Copy class="h-3 w-3" />
               </Button>
+              <Button v-if="canImportBinaryValue(detail)" variant="ghost" size="icon" class="h-6 w-6" :title="t('grid.importBinaryValue')" @click="importBinaryValue(detail)">
+                <FileUp class="h-3 w-3" />
+              </Button>
               <DropdownMenu v-if="canDownloadBinaryValue(detail)">
                 <DropdownMenuTrigger as-child>
                   <Button variant="ghost" size="icon" class="h-6 w-6" :title="t('grid.downloadBinaryValue')">
-                    <Upload class="h-3 w-3" />
+                    <Download class="h-3 w-3" />
                   </Button>
                 </DropdownMenuTrigger>
                 <DropdownMenuContent align="end" class="w-44">
diff --git a/apps/desktop/src/components/grid/DataGridCellDetailPanel.vue b/apps/desktop/src/components/grid/DataGridCellDetailPanel.vue
index 04ab39ba9..fd3ca930b 100644
--- a/apps/desktop/src/components/grid/DataGridCellDetailPanel.vue
+++ b/apps/desktop/src/components/grid/DataGridCellDetailPanel.vue
@@ -1,6 +1,6 @@
 <script setup lang="ts">
 import { toRef } from "vue";
-import { Code2, Copy, Eye, Pencil, Upload, X } from "@lucide/vue";
+import { Code2, Copy, Download, Eye, FileUp, Pencil, X } from "@lucide/vue";
 import { useI18n } from "vue-i18n";
 import { Button } from "@/components/ui/button";
 import { DropdownMenu, DropdownMenuContent, DropdownMenuItem, DropdownMenuTrigger } from "@/components/ui/dropdown-menu";
@@ -30,6 +30,8 @@ const props = defineProps<{
   typeColorClass: (type: string) => string;
   canDownloadBinaryValue: (detail: DataGridCellDetail | null) => boolean;
   downloadBinaryValue: (detail: DataGridCellDetail | null, mode: BinaryCellDownloadMode) => void | Promise<void>;
+  canImportBinaryValue: (detail: DataGridCellDetail | null) => boolean;
+  importBinaryValue: (detail: DataGridCellDetail | null) => void | Promise<void>;
   openImagePreview: (src: string, title: string) => void;
   canCopySqlCondition: () => boolean;
 }>();
@@ -122,9 +124,10 @@ defineExpose({ openSearch });
             <Button v-if="!editing && detail.formattedJson" :variant="sideJsonView ? 'secondary' : 'ghost'" size="sm" class="h-5 gap-1 px-1.5 text-xs" :title="t('grid.formattedJson')" @click="emit('toggleFormatted')"><Code2 class="h-3 w-3" />{{ t("grid.formattedJson") }}</Button>
             <Button v-if="!editing && detail.isEditable" variant="ghost" size="icon" class="h-5 w-5" :title="t('grid.editValue')" @click="emit('startEdit')"><Pencil class="h-3 w-3" /></Button>
             <Button v-if="!editing" variant="ghost" size="icon" class="h-5 w-5" :title="t('grid.copyValue')" @click="emit('copyValue')"><Copy class="h-3 w-3" /></Button>
+            <Button v-if="canImportBinaryValue(detail)" variant="ghost" size="icon" class="h-5 w-5" :title="t('grid.importBinaryValue')" @click="importBinaryValue(detail)"><FileUp class="h-3 w-3" /></Button>
             <DropdownMenu v-if="!editing && canDownloadBinaryValue(detail)"
               ><DropdownMenuTrigger as-child
-                ><Button variant="ghost" size="icon" class="h-5 w-5" :title="t('grid.downloadBinaryValue')"><Upload class="h-3 w-3" /></Button></DropdownMenuTrigger
+                ><Button variant="ghost" size="icon" class="h-5 w-5" :title="t('grid.downloadBinaryValue')"><Download class="h-3 w-3" /></Button></DropdownMenuTrigger
               ><DropdownMenuContent align="end" class="w-44"
                 ><DropdownMenuItem v-for="mode in BINARY_CELL_DOWNLOAD_MODES" :key="mode" @click="downloadBinaryValue(detail, mode)">{{ t(`grid.binaryDownload.${mode}`) }}</DropdownMenuItem></DropdownMenuContent
               ></DropdownMenu
diff --git a/apps/desktop/src/components/grid/DataGridExportMenu.vue b/apps/desktop/src/components/grid/DataGridExportMenu.vue
index 61b7f14d4..5396ce6c3 100644
--- a/apps/desktop/src/components/grid/DataGridExportMenu.vue
+++ b/apps/desktop/src/components/grid/DataGridExportMenu.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { Upload } from "@lucide/vue";
+import { Download } from "@lucide/vue";
 import LightDropdown, { type LightDropdownItem } from "@/components/ui/LightDropdown.vue";
 
 defineProps<{
@@ -14,7 +14,7 @@ defineProps<{
     model-value=""
     :items="items"
     :aria-label="label"
-    :trigger-icon="Upload"
+    :trigger-icon="Download"
     :trigger-label="label"
     trigger-class="inline-flex h-6 shrink-0 items-center justify-center gap-1 whitespace-nowrap rounded-md px-2 text-foreground/80 hover:bg-accent hover:text-accent-foreground"
     trigger-icon-class="h-3.5 w-3.5"
diff --git a/apps/desktop/src/components/grid/DataGridToolbar.vue b/apps/desktop/src/components/grid/DataGridToolbar.vue
index d173fafee..5669c4374 100644
--- a/apps/desktop/src/components/grid/DataGridToolbar.vue
+++ b/apps/desktop/src/components/grid/DataGridToolbar.vue
@@ -1,6 +1,6 @@
 <script setup lang="ts">
 import { computed } from "vue";
-import { Check, ChevronDown, Copy, Eye, Loader2, Plus, RefreshCcw, RotateCcw, Rows3, Save, TableProperties, Timer, Trash2, Upload } from "@lucide/vue";
+import { Check, ChevronDown, Copy, Download, Eye, Loader2, Plus, RefreshCcw, RotateCcw, Rows3, Save, TableProperties, Timer, Trash2 } from "@lucide/vue";
 import { Button } from "@/components/ui/button";
 import { DropdownMenu, DropdownMenuContent, DropdownMenuItem, DropdownMenuSeparator, DropdownMenuTrigger } from "@/components/ui/dropdown-menu";
 import { Tooltip, TooltipContent, TooltipTrigger } from "@/components/ui/tooltip";
@@ -164,7 +164,7 @@ function actionLabelClass() {
         <TooltipTrigger as-child>
           <DropdownMenuTrigger as-child>
             <Button variant="ghost" size="sm" :class="actionButtonClass" :disabled="exportData?.disabled || !exportData?.items.length">
-              <Upload class="data-grid-topbar-action-icon h-3 w-3" />
+              <Download class="data-grid-topbar-action-icon h-3 w-3" />
               <span class="data-grid-topbar-action-label" :class="actionLabelClass()">{{ exportData?.label }}</span>
             </Button>
           </DropdownMenuTrigger>
diff --git a/apps/desktop/src/components/grid/__tests__/DataGridSurfaces.spec.ts b/apps/desktop/src/components/grid/__tests__/DataGridSurfaces.spec.ts
index 5c7d9b20a..993f1ae3b 100644
--- a/apps/desktop/src/components/grid/__tests__/DataGridSurfaces.spec.ts
+++ b/apps/desktop/src/components/grid/__tests__/DataGridSurfaces.spec.ts
@@ -25,8 +25,10 @@ vi.mock("@lucide/vue", async () => {
     ChevronRight: icon,
     ChevronsLeft: icon,
     ChevronsRight: icon,
+    Download: icon,
     Filter: icon,
     Loader2: icon,
+    FileUp: icon,
     Upload: icon,
     Search: icon,
     X: icon,
@@ -873,7 +875,20 @@ describe("cell detail surfaces", () => {
     const copyText = vi.fn();
     const edit = vi.fn();
     const updateOpen = vi.fn();
-    const mounted = mountComponent(DataGridCellDetailDialog, { open: true, detail: detail(), typeColorClass: () => "", openImagePreview: vi.fn(), copyText, canDownloadBinaryValue: () => false, downloadBinaryValue: vi.fn(), onEdit: edit, "onUpdate:open": updateOpen });
+    const importBinaryValue = vi.fn();
+    const mounted = mountComponent(DataGridCellDetailDialog, {
+      open: true,
+      detail: detail({ type: "BYTEA", isEditable: true }),
+      typeColorClass: () => "",
+      openImagePreview: vi.fn(),
+      copyText,
+      canDownloadBinaryValue: () => false,
+      downloadBinaryValue: vi.fn(),
+      canImportBinaryValue: () => true,
+      importBinaryValue,
+      onEdit: edit,
+      "onUpdate:open": updateOpen,
+    });
     await nextTick();
     await nextTick();
 
@@ -885,6 +900,11 @@ describe("cell detail surfaces", () => {
       "click",
     );
     expect(edit).toHaveBeenCalledOnce();
+    dispatch(
+      findOne(mounted.root, (node) => node.props.title === "grid.importBinaryValue"),
+      "click",
+    );
+    expect(importBinaryValue).toHaveBeenCalledOnce();
 
     await mounted.setProps({ detail: detail({ rawValue: '{"b":2}', formattedJson: '{\n  "b": 2\n}' }) });
     expect(mocks.editor.setValue).toHaveBeenCalledWith('{\n  "b": 2\n}', "json");
@@ -912,6 +932,8 @@ describe("cell detail surfaces", () => {
       typeColorClass: () => "",
       canDownloadBinaryValue: () => false,
       downloadBinaryValue: vi.fn(),
+      canImportBinaryValue: () => false,
+      importBinaryValue: vi.fn(),
       openImagePreview: vi.fn(),
       canCopySqlCondition: () => true,
       onStartEdit: startEdit,
diff --git a/apps/desktop/src/i18n/locales/en.ts b/apps/desktop/src/i18n/locales/en.ts
index c56480794..110aa158c 100644
--- a/apps/desktop/src/i18n/locales/en.ts
+++ b/apps/desktop/src/i18n/locales/en.ts
@@ -1649,6 +1649,10 @@ export default {
     rawValue: "Raw Value",
     largeValuePreviewHint: "Previewing first {count} characters. Copy still uses the full value.",
     copyValue: "Copy Value",
+    importBinaryValue: "Import from File",
+    binaryImportApplied: "Imported {count} bytes. Save changes to write them to the database.",
+    binaryImportFailed: "Failed to import file: {message}",
+    binaryImportTooLarge: "File is too large ({size}, limit {limit}). Importing large files into a single cell is not supported.",
     downloadBinaryValue: "Download Value",
     downloadSaved: "Saved to {path}",
     downloadStarted: "Download started: {fileName}",
diff --git a/apps/desktop/src/i18n/locales/es.ts b/apps/desktop/src/i18n/locales/es.ts
index 8b8d40860..5b4b784c6 100644
--- a/apps/desktop/src/i18n/locales/es.ts
+++ b/apps/desktop/src/i18n/locales/es.ts
@@ -1675,6 +1675,10 @@ export default withEnglishFallback({
     xlsxHeaderOriginal: "Encabezado usando nombres de campos",
     xlsxHeaderComment: "Encabezado usando comentarios",
     jumpToPage: "Ir a la página",
+    importBinaryValue: "Importar desde archivo",
+    binaryImportApplied: "Se importaron {count} bytes, que se escribirán en la base de datos al guardar los cambios.",
+    binaryImportFailed: "Error al importar el archivo: {message}",
+    binaryImportTooLarge: "El archivo es demasiado grande ({size}, límite {limit}). No se admite importar archivos grandes en una sola celda.",
   },
   exportProgress: {
     streamingUnsupported: "La exportación en streaming no es compatible con esta consulta. Simplifíquela o use un controlador compatible.",
diff --git a/apps/desktop/src/i18n/locales/it.ts b/apps/desktop/src/i18n/locales/it.ts
index f368070b3..b8a95df6c 100644
--- a/apps/desktop/src/i18n/locales/it.ts
+++ b/apps/desktop/src/i18n/locales/it.ts
@@ -1673,6 +1673,10 @@ export default withEnglishFallback({
     xlsxHeaderOriginal: "Intestazione con nome campo",
     xlsxHeaderComment: "Intestazione con commento",
     jumpToPage: "Vai alla pagina",
+    importBinaryValue: "Importa da file",
+    binaryImportApplied: "Importati {count} byte, scritti nel database dopo il salvataggio delle modifiche.",
+    binaryImportFailed: "Importazione del file non riuscita: {message}",
+    binaryImportTooLarge: "Il file è troppo grande ({size}, limite {limit}). L'importazione di file di grandi dimensioni in una singola cella non è supportata.",
   },
   exportProgress: {
     streamingUnsupported: "L'esportazione in streaming non è supportata per questa query. Semplificala o usa un driver supportato.",
diff --git a/apps/desktop/src/i18n/locales/ja.ts b/apps/desktop/src/i18n/locales/ja.ts
index 1e005eae0..d689309b4 100644
--- a/apps/desktop/src/i18n/locales/ja.ts
+++ b/apps/desktop/src/i18n/locales/ja.ts
@@ -1700,6 +1700,10 @@ export default withEnglishFallback({
     searchModeHighlight: "ハイライト",
     emptyStringValue: "空文字",
     jumpToPage: "ページ番号に移動",
+    importBinaryValue: "ファイルからインポート",
+    binaryImportApplied: "{count} バイトをインポートしました。変更を保存するとデータベースに書き込まれます。",
+    binaryImportFailed: "ファイルのインポートに失敗しました：{message}",
+    binaryImportTooLarge: "ファイルが大きすぎます（{size}、上限 {limit}）。大きなファイルの単一セルへのインポートはサポートされていません。",
   },
   exportProgress: {
     streamingUnsupported: "このクエリはストリーミングエクスポートに対応していません。クエリを簡略化するか、対応しているドライバーを使用してください。",
diff --git a/apps/desktop/src/i18n/locales/ko.ts b/apps/desktop/src/i18n/locales/ko.ts
index da39fbd9a..f7f8fde30 100644
--- a/apps/desktop/src/i18n/locales/ko.ts
+++ b/apps/desktop/src/i18n/locales/ko.ts
@@ -1519,6 +1519,7 @@ export default withEnglishFallback({
     largeValuePreviewHint: "처음 {count}자 미리보는 중. 복사에는 여전히 전체 값이 사용됩니다.",
     copyValue: "값 복사",
     downloadBinaryValue: "값 다운로드",
+    binaryImportTooLarge: "파일이 너무 큽니다({size}, 상한 {limit}). 큰 파일을 단일 셀에 가져오는 것은 지원되지 않습니다.",
     downloadSaved: "{path}에 저장됨",
     downloadStarted: "다운로드 시작됨: {fileName}",
     binaryDownload: {
diff --git a/apps/desktop/src/i18n/locales/pt-BR.ts b/apps/desktop/src/i18n/locales/pt-BR.ts
index c4eb7d3d6..4dec01e1a 100644
--- a/apps/desktop/src/i18n/locales/pt-BR.ts
+++ b/apps/desktop/src/i18n/locales/pt-BR.ts
@@ -1675,6 +1675,10 @@ export default withEnglishFallback({
     xlsxHeaderOriginal: "Cabeçalho usa nome do campo",
     xlsxHeaderComment: "Cabeçalho usa comentário",
     jumpToPage: "Ir para a página",
+    importBinaryValue: "Importar do arquivo",
+    binaryImportApplied: "{count} bytes importados, gravados no banco de dados após salvar as alterações.",
+    binaryImportFailed: "Falha ao importar o arquivo: {message}",
+    binaryImportTooLarge: "O arquivo é muito grande ({size}, limite {limit}). Não há suporte para importar arquivos grandes em uma única célula.",
   },
   exportProgress: {
     streamingUnsupported: "A exportação em streaming não é compatível com esta consulta. Simplifique-a ou use um driver compatível.",
diff --git a/apps/desktop/src/i18n/locales/zh-CN.ts b/apps/desktop/src/i18n/locales/zh-CN.ts
index 6bab86ccf..45ccceac2 100644
--- a/apps/desktop/src/i18n/locales/zh-CN.ts
+++ b/apps/desktop/src/i18n/locales/zh-CN.ts
@@ -1649,6 +1649,10 @@ export default withEnglishFallback({
     rawValue: "原始值",
     largeValuePreviewHint: "仅预览前 {count} 个字符，复制仍会使用完整值。",
     copyValue: "复制值",
+    importBinaryValue: "从文件导入",
+    binaryImportApplied: "已导入 {count} 字节，保存更改后写入数据库。",
+    binaryImportFailed: "导入文件失败：{message}",
+    binaryImportTooLarge: "文件过大（{size}，上限 {limit}）。不支持将大文件导入到单个单元格。",
     downloadBinaryValue: "下载值",
     downloadSaved: "已保存到 {path}",
     downloadStarted: "已交给浏览器下载：{fileName}",
diff --git a/apps/desktop/src/i18n/locales/zh-TW.ts b/apps/desktop/src/i18n/locales/zh-TW.ts
index 036b4b8ba..ab5412cd5 100644
--- a/apps/desktop/src/i18n/locales/zh-TW.ts
+++ b/apps/desktop/src/i18n/locales/zh-TW.ts
@@ -1524,6 +1524,10 @@ export default withEnglishFallback({
     rawValue: "原始值",
     largeValuePreviewHint: "僅預覽前 {count} 個字元，複製仍會使用完整值。",
     copyValue: "複製值",
+    importBinaryValue: "從檔案匯入",
+    binaryImportApplied: "已匯入 {count} 位元組，儲存變更後寫入資料庫。",
+    binaryImportFailed: "匯入檔案失敗：{message}",
+    binaryImportTooLarge: "檔案過大（{size}，上限 {limit}）。不支援將大檔案匯入到單一儲存格。",
     downloadBinaryValue: "下載值",
     downloadSaved: "已儲存到 {path}",
     downloadStarted: "已交給瀏覽器下載：{fileName}",
diff --git a/apps/desktop/src/lib/__tests__/dataGrid/dataGridContextMenu.spec.ts b/apps/desktop/src/lib/__tests__/dataGrid/dataGridContextMenu.spec.ts
index 9b43bb667..2e504b9e4 100644
--- a/apps/desktop/src/lib/__tests__/dataGrid/dataGridContextMenu.spec.ts
+++ b/apps/desktop/src/lib/__tests__/dataGrid/dataGridContextMenu.spec.ts
@@ -63,9 +63,12 @@ describe("dataGridContextMenu", () => {
       labels: { cellDetails: "cell", columnDetails: "column", rowDetails: "row", setNull: "null", bulkEdit: "bulk", transpose: "transpose" },
       icons: { cellDetails: icon, columnDetails: icon, rowDetails: icon, setNull: icon, bulkEdit: icon, transpose: icon },
       actions: { cellDetails: action, columnDetails: action, rowDetails: action, setNull: action, bulkEdit: action, transpose: action },
+      importItem: { label: "import" },
+      downloadItem: { label: "download" },
       copySubmenu: { label: "copy" },
       clearSelectionItem: { label: "clear" },
     });
+    expect(cellItems.slice(0, 4).map((item) => item.label)).toEqual(["cell", "import", "download", "column"]);
     expect(cellItems.find((item) => item.label === "bulk")?.disabled).toBe(true);
 
     const rowItems = createDataGridRowContextMenuItems({
diff --git a/apps/desktop/src/lib/dataGrid/__tests__/binaryCellFileImport.spec.ts b/apps/desktop/src/lib/dataGrid/__tests__/binaryCellFileImport.spec.ts
new file mode 100644
index 000000000..f76c98684
--- /dev/null
+++ b/apps/desktop/src/lib/dataGrid/__tests__/binaryCellFileImport.spec.ts
@@ -0,0 +1,18 @@
+import { describe, expect, it } from "vitest";
+import { binaryCellBytesToHexValue, canImportBinaryCellFile } from "@/lib/dataGrid/binaryCellDownload";
+
+describe("binary cell file import", () => {
+  it("encodes arbitrary and empty files as prefixed hex cell values", () => {
+    expect(binaryCellBytesToHexValue(new Uint8Array([0x00, 0x01, 0xab, 0xff]))).toBe("0x0001abff");
+    expect(binaryCellBytesToHexValue(new Uint8Array())).toBe("0x");
+  });
+
+  it("offers file import only where prefixed hex values have binary save syntax", () => {
+    expect(canImportBinaryCellFile("postgres", "bytea")).toBe(true);
+    expect(canImportBinaryCellFile("mysql", "longblob")).toBe(true);
+    expect(canImportBinaryCellFile("mysql", "varbinary(255)")).toBe(true);
+    expect(canImportBinaryCellFile("postgres", "text")).toBe(false);
+    expect(canImportBinaryCellFile("sqlserver", "varbinary(max)")).toBe(false);
+    expect(canImportBinaryCellFile("sqlite", "blob")).toBe(false);
+  });
+});
diff --git a/apps/desktop/src/lib/dataGrid/binaryCellDownload.ts b/apps/desktop/src/lib/dataGrid/binaryCellDownload.ts
index c7be5ab6b..a2e1e6c57 100644
--- a/apps/desktop/src/lib/dataGrid/binaryCellDownload.ts
+++ b/apps/desktop/src/lib/dataGrid/binaryCellDownload.ts
@@ -1,5 +1,6 @@
 import type { CellValue } from "@/lib/dataGrid/cellValue";
 import { isTauriRuntime } from "@/lib/backend/tauriRuntime";
+import type { DatabaseType } from "@/types/database";
 
 export type BinaryCellDownloadMode = "binary" | "utf8" | "gbk";
 
@@ -22,6 +23,86 @@ export interface BinaryCellDownloadResult {
 
 export const BINARY_CELL_DOWNLOAD_MODES: BinaryCellDownloadMode[] = ["binary", "utf8", "gbk"];
 
+/**
+ * 单个 BLOB/BYTEA 单元格从文件导入的最大字节数。
+ *
+ * 设立此上限的原因：导入路径会用 `@tauri-apps/plugin-fs` 的 `readFile(path)` 把整个文件
+ * 一次性读进 `Uint8Array` 经 IPC 返回前端，再经 `binaryCellBytesToHexValue` 转成
+ * `0x<hex>` 字符串（长度约为文件字节的 2 倍）作为脏值常驻内存，直到保存或放弃编辑。
+ * 几百 MB 的 BLOB 即可造成 OOM/卡死，故在进入 readFile + hex 转换路径之前先按文件大小拦截。
+ * 16 MB 对单个单元格导入已相当宽裕，分块流式 + 后端参数绑定属后续更大改造，不在此处处理。
+ */
+export const MAX_BINARY_CELL_IMPORT_BYTES = 16 * 1024 * 1024;
+
+/**
+ * 文件超过 {@link MAX_BINARY_CELL_IMPORT_BYTES} 时抛出的错误。
+ * 调用方据 `code === "binary-import-too-large"` 选择专门的提示文案，
+ * 其余失败仍走通用错误提示。
+ */
+export class BinaryCellImportTooLargeError extends Error {
+  readonly code = "binary-import-too-large" as const;
+  readonly bytes: number;
+  readonly limit: number;
+  constructor(bytes: number, limit: number) {
+    super(`File is ${bytes} bytes, exceeds the ${limit}-byte import limit.`);
+    this.name = "BinaryCellImportTooLargeError";
+    this.bytes = bytes;
+    this.limit = limit;
+  }
+}
+
+export function binaryCellBytesToHexValue(bytes: Uint8Array): string {
+  let hex = "0x";
+  for (const byte of bytes) hex += byte.toString(16).padStart(2, "0");
+  return hex;
+}
+
+function openBinaryCellFileInBrowser(): Promise<Uint8Array | undefined> {
+  return new Promise((resolve, reject) => {
+    const input = document.createElement("input");
+    input.type = "file";
+    input.onchange = async () => {
+      try {
+        const file = input.files?.[0];
+        if (!file) {
+          resolve(undefined);
+          return;
+        }
+        // 尺寸闸门：File.size 在读取前即可用，避免大文件进入 arrayBuffer + hex 路径。
+        if (file.size > MAX_BINARY_CELL_IMPORT_BYTES) {
+          reject(new BinaryCellImportTooLargeError(file.size, MAX_BINARY_CELL_IMPORT_BYTES));
+          return;
+        }
+        resolve(new Uint8Array(await file.arrayBuffer()));
+      } catch (error) {
+        reject(error);
+      }
+    };
+    input.click();
+  });
+}
+
+export async function openBinaryCellFile(): Promise<Uint8Array | undefined> {
+  if (!isTauriRuntime()) return openBinaryCellFileInBrowser();
+
+  const [{ open }, { readFile, stat }] = await Promise.all([import("@tauri-apps/plugin-dialog"), import("@tauri-apps/plugin-fs")]);
+  const selected = await open({ multiple: false });
+  const path = Array.isArray(selected) ? selected[0] : selected;
+  if (!path) return undefined;
+  // 尺寸闸门：在 readFile 之前用 stat 取文件大小，避免大文件被全量读入内存。
+  // stat 不可用（权限/平台差异等）时降级为不阻断，保留原 readFile 行为，避免功能完全不可用。
+  try {
+    const info = await stat(path);
+    if (info.size > MAX_BINARY_CELL_IMPORT_BYTES) {
+      throw new BinaryCellImportTooLargeError(info.size, MAX_BINARY_CELL_IMPORT_BYTES);
+    }
+  } catch (error) {
+    if (error instanceof BinaryCellImportTooLargeError) throw error;
+    console.warn("[binaryCellDownload] stat failed, skipping size gate:", error);
+  }
+  return readFile(path);
+}
+
 export function retainBinaryCellDownloadMenuForHover(openCell: BinaryCellPosition | null, hoveredCell: BinaryCellPosition): BinaryCellPosition | null {
   return openCell?.rowIndex === hoveredCell.rowIndex && openCell.col === hoveredCell.col ? openCell : null;
 }
@@ -30,6 +111,7 @@ const HEX_VALUE_RE = /^(?:0[xX]|\\x)([0-9a-fA-F\s]+)$/;
 const BARE_HEX_RE = /^[0-9a-fA-F\s]+$/;
 const HEX_ESCAPE_RE = /^(?:\\x[0-9a-fA-F]{2}|\s)+$/;
 const BINARY_TYPE_RE = /^(?:blob|tinyblob|mediumblob|longblob|bytea|bytes|binary|varbinary|image|raw|long\s+raw)(?:\b|\()/i;
+const MYSQL_FILE_IMPORT_TYPE_RE = /^(?:blob|tinyblob|mediumblob|longblob|binary|varbinary)(?:\b|\()/i;
 
 function copyBytesForBlob(bytes: Uint8Array): Uint8Array<ArrayBuffer> {
   return new Uint8Array(bytes);
@@ -96,6 +178,13 @@ export function isBinaryCellColumnType(columnType?: string): boolean {
   return !!type && BINARY_TYPE_RE.test(type);
 }
 
+export function canImportBinaryCellFile(databaseType?: DatabaseType, columnType?: string): boolean {
+  const type = (columnType ?? "").trim();
+  if (databaseType === "postgres") return /^bytea(?:\b|\()/i.test(type);
+  if (databaseType === "mysql") return MYSQL_FILE_IMPORT_TYPE_RE.test(type);
+  return false;
+}
+
 export function canDownloadBinaryCellValue(value: unknown, columnType?: string): boolean {
   return !!parseBinaryCellBytes(value, columnType);
 }
@@ -116,7 +205,7 @@ function binaryCellDisplayLabel(columnType?: string): string {
   return base;
 }
 
-function formatBinaryCellByteSize(bytes: number): string {
+export function formatBinaryCellByteSize(bytes: number): string {
   if (bytes < 1024) return `${bytes} bytes`;
   if (bytes < 1024 * 1024) return `${(bytes / 1024).toFixed(bytes < 10 * 1024 ? 1 : 0)} KB`;
   return `${(bytes / (1024 * 1024)).toFixed(bytes < 10 * 1024 * 1024 ? 1 : 0)} MB`;
diff --git a/apps/desktop/src/lib/dataGrid/dataGridContextMenu.ts b/apps/desktop/src/lib/dataGrid/dataGridContextMenu.ts
index 8b89916a3..3520eddcc 100644
--- a/apps/desktop/src/lib/dataGrid/dataGridContextMenu.ts
+++ b/apps/desktop/src/lib/dataGrid/dataGridContextMenu.ts
@@ -128,6 +128,7 @@ export function createDataGridCellContextMenuItems(options: {
   labels: Record<"cellDetails" | "columnDetails" | "rowDetails" | "setNull" | "bulkEdit" | "transpose", string>;
   icons: Pick<DataGridContextMenuIcons, "cellDetails" | "columnDetails" | "rowDetails" | "setNull" | "bulkEdit" | "transpose">;
   actions: Record<"cellDetails" | "columnDetails" | "rowDetails" | "setNull" | "bulkEdit" | "transpose", () => void>;
+  importItem?: DataGridContextMenuItem | null;
   downloadItem?: DataGridContextMenuItem | null;
   foreignKeyItem?: DataGridContextMenuItem | null;
   copySubmenu: DataGridContextMenuItem;
@@ -138,6 +139,7 @@ export function createDataGridCellContextMenuItems(options: {
   if (options.hasCell) {
     if (options.hasColumn) {
       items.push({ label: options.labels.cellDetails, action: options.actions.cellDetails, icon: options.icons.cellDetails });
+      if (options.importItem) items.push(options.importItem);
       if (options.downloadItem) items.push(options.downloadItem);
       if (options.foreignKeyItem) items.push(options.foreignKeyItem);
       items.push({ label: options.labels.columnDetails, action: options.actions.columnDetails, icon: options.icons.columnDetails });
diff --git a/crates/dbx-core/src/data_grid_sql.rs b/crates/dbx-core/src/data_grid_sql.rs
index 7322ae8cd..25e50dfea 100644
--- a/crates/dbx-core/src/data_grid_sql.rs
+++ b/crates/dbx-core/src/data_grid_sql.rs
@@ -1803,6 +1803,11 @@ pub fn format_grid_sql_literal(
             return literal;
         }
     }
+    if is_postgres_binary_literal_column(database_type, column_info) {
+        if let Some(literal) = format_postgres_binary_literal_text(&text) {
+            return literal;
+        }
+    }
     if is_oracle_raw_literal_column(database_type, column_info) {
         if let Some(literal) = format_oracle_raw_literal_text(&text) {
             return literal;
@@ -2141,6 +2146,24 @@ fn format_mysql_binary_literal_text(text: &str) -> Option<String> {
     }
 }
 
+fn is_postgres_binary_literal_column(
+    database_type: Option<DatabaseType>,
+    column_info: Option<&DataGridColumnInfo>,
+) -> bool {
+    database_type == Some(DatabaseType::Postgres)
+        && column_info.is_some_and(|column| column.data_type.trim().eq_ignore_ascii_case("bytea"))
+}
+
+fn format_postgres_binary_literal_text(text: &str) -> Option<String> {
+    let trimmed = text.trim();
+    let hex = trimmed.strip_prefix("0x").or_else(|| trimmed.strip_prefix("0X"))?;
+    if hex.len() % 2 == 0 && hex.chars().all(|ch| ch.is_ascii_hexdigit()) {
+        Some(format!("decode('{hex}', 'hex')"))
+    } else {
+        None
+    }
+}
+
 fn is_oracle_raw_literal_column(database_type: Option<DatabaseType>, column_info: Option<&DataGridColumnInfo>) -> bool {
     is_oracle_temporal_literal_database(database_type)
         && column_info.map(|column| is_oracle_raw_column_type(&column.data_type)).unwrap_or(false)
@@ -5403,6 +5426,23 @@ mod tests {
         assert_eq!(format_grid_sql_literal(&json!("it's"), Some(DatabaseType::Postgres), None), "'it''s'");
     }
 
+    #[test]
+    fn postgres_bytea_literals_decode_prefixed_hex_values() {
+        let bytea = column("payload", "bytea", true, None);
+        let text = column("label", "text", true, None);
+
+        assert_eq!(
+            format_grid_sql_literal(&json!("0x00aBff"), Some(DatabaseType::Postgres), Some(&bytea)),
+            "decode('00aBff', 'hex')"
+        );
+        assert_eq!(
+            format_grid_sql_literal(&json!("0x"), Some(DatabaseType::Postgres), Some(&bytea)),
+            "decode('', 'hex')"
+        );
+        assert_eq!(format_grid_sql_literal(&json!("0xabc"), Some(DatabaseType::Postgres), Some(&bytea)), "'0xabc'");
+        assert_eq!(format_grid_sql_literal(&json!("0x00ab"), Some(DatabaseType::Postgres), Some(&text)), "'0x00ab'");
+    }
+
     #[test]
     fn sqlite_family_literals_do_not_double_escape_backslashes() {
         let value = json!(r#"{"json_raw":"{\"foo\":1,\"bar\":\"sometext\"}"}"#);
diff --git a/packages/app-tests/binaryCellDownload.test.ts b/packages/app-tests/binaryCellDownload.test.ts
index c5f403659..838785395 100644
--- a/packages/app-tests/binaryCellDownload.test.ts
+++ b/packages/app-tests/binaryCellDownload.test.ts
@@ -2,7 +2,19 @@ import assert from "node:assert/strict";
 import { readFileSync } from "node:fs";
 import { test } from "vitest";
 
-import { binaryCellDisplayText, binaryCellDownloadFileName, binaryCellDownloadPayload, canDownloadBinaryCellValue, isBinaryCellColumnType, parseBinaryCellBytes, parseBinaryCellHexValue, retainBinaryCellDownloadMenuForHover } from "../../apps/desktop/src/lib/dataGrid/binaryCellDownload.ts";
+import {
+  BinaryCellImportTooLargeError,
+  binaryCellDisplayText,
+  binaryCellDownloadFileName,
+  binaryCellDownloadPayload,
+  canDownloadBinaryCellValue,
+  formatBinaryCellByteSize,
+  isBinaryCellColumnType,
+  MAX_BINARY_CELL_IMPORT_BYTES,
+  parseBinaryCellBytes,
+  parseBinaryCellHexValue,
+  retainBinaryCellDownloadMenuForHover,
+} from "../../apps/desktop/src/lib/dataGrid/binaryCellDownload.ts";
 
 test("parseBinaryCellHexValue accepts 0x and \\x prefixed hex values", () => {
   assert.deepEqual(Array.from(parseBinaryCellHexValue("0X48656c6c6f") ?? []), [72, 101, 108, 108, 111]);
@@ -77,3 +89,34 @@ test("binaryCellDownloadPayload decodes GBK text bytes", () => {
 test("binaryCellDownloadFileName sanitizes column names", () => {
   assert.equal(binaryCellDownloadFileName({ column: "avatar/blob", rowNumber: 7, mode: "gbk", extension: "txt" }), "avatar-blob-row-7-gbk.txt");
 });
+
+test("MAX_BINARY_CELL_IMPORT_BYTES is a sane upper bound for single-cell imports", () => {
+  // 16 MB: 单个 BLOB 单元格导入的保守上限，避免 readFile 全量读 + 2× hex 常驻导致 OOM。
+  assert.equal(MAX_BINARY_CELL_IMPORT_BYTES, 16 * 1024 * 1024);
+});
+
+test("BinaryCellImportTooLargeError carries code and byte/limit for toast formatting", () => {
+  const err = new BinaryCellImportTooLargeError(20 * 1024 * 1024, MAX_BINARY_CELL_IMPORT_BYTES);
+  assert.equal(err.code, "binary-import-too-large");
+  assert.equal(err.bytes, 20 * 1024 * 1024);
+  assert.equal(err.limit, MAX_BINARY_CELL_IMPORT_BYTES);
+  assert.ok(err instanceof Error);
+});
+
+test("formatBinaryCellByteSize formats human-readable sizes for the import toast", () => {
+  assert.equal(formatBinaryCellByteSize(512), "512 bytes");
+  assert.equal(formatBinaryCellByteSize(2048), "2.0 KB");
+  // bytes >= 10 MB 时按整数 MB 显示（对齐 binaryCellDisplayText 既有格式）。
+  assert.equal(formatBinaryCellByteSize(20 * 1024 * 1024), "20 MB");
+});
+
+test("DataGrid import handler surfaces a dedicated too-large toast instead of the generic failure", () => {
+  const source = readFileSync("apps/desktop/src/components/grid/DataGrid.vue", "utf8");
+  const handler = source.match(/async function importDetailBinaryValue\([^]*?\n\}/)?.[0] ?? "";
+
+  // 闸门错误必须走专门的文案，而非通用 binaryImportFailed。
+  assert.match(handler, /e instanceof BinaryCellImportTooLargeError/);
+  assert.match(handler, /grid\.binaryImportTooLarge/);
+  assert.match(handler, /formatBinaryCellByteSize\(e\.bytes\)/);
+  assert.match(handler, /formatBinaryCellByteSize\(e\.limit\)/);
+});