diff --git a/apps/desktop/src/components/grid/DataGrid.vue b/apps/desktop/src/components/grid/DataGrid.vue
index 9688a9d899..a73bbf36c4 100644
--- a/apps/desktop/src/components/grid/DataGrid.vue
+++ b/apps/desktop/src/components/grid/DataGrid.vue
@@ -6,6 +6,7 @@ import {
   ArrowDown,
   ArrowUpDown,
   ArrowUpRight,
+  ExternalLink,
   Download,
   FileUp,
   Trash2,
@@ -135,6 +136,7 @@ import {
 } from "@/lib/dataGrid/dataGridTranspose";
 import { canApplyGridSelectionValue, canDeleteGridRowItem, canEditGridCellDetail, matchesRowStatusFilter, shouldShowQuickEntryDraftRow, type RowStatus, type RowStatusFilter } from "@/lib/dataGrid/gridRowStatus";
 import { displayCellValue, firstLineCellDisplayValue, limitDataGridCellDisplay, SQLSERVER_DATA_GRID_CELL_DISPLAY_MAX_LENGTH, type CellValue } from "@/lib/dataGrid/cellValue";
+import { cellExternalUrl } from "@/lib/dataGrid/cellExternalUrl";
 import { getApplicablePreviewActions, type PreviewAction } from "@/lib/dataGrid/resultPreviewRegistry";
 import "@/lib/dataGrid/geometryMapPreview";
 import {
@@ -7889,8 +7891,9 @@ const canvasDetailButtonCell = computed(() => {
   const visibleRight = viewportWidth > 0 ? Math.min(viewportWidth, rect.left + rect.width) : rect.left + rect.width;
   const canQuickDownload = canQuickDownloadCellValue(target.rowIndex, target.col);
   const foreignKey = canvasCellForeignKey(target.rowIndex, target.col);
-  if (!cellDetailButtonEnabled.value && !canQuickDownload && !foreignKey) return null;
-  const minWidth = canvasDataGridActionOverlayWidth(canQuickDownload, !!foreignKey, cellDetailButtonEnabled.value) + 2;
+  const externalUrl = cellExternalUrl(displayItemAt(target.rowIndex)?.data[target.col]);
+  if (!cellDetailButtonEnabled.value && !canQuickDownload && !foreignKey && !externalUrl) return null;
+  const minWidth = canvasDataGridActionOverlayWidth(canQuickDownload, !!foreignKey, cellDetailButtonEnabled.value, !!externalUrl) + 2;
   if (rect.top < 0 || rect.top > viewportHeight - 1 || visibleRight - visibleLeft < minWidth) return null;
   return {
     rowIndex: target.rowIndex,
@@ -7899,13 +7902,14 @@ const canvasDetailButtonCell = computed(() => {
     rect,
     canQuickDownload,
     foreignKey,
+    externalUrl,
   };
 });
 
 const canvasDetailButtonStyle = computed(() => {
   const cell = canvasDetailButtonCell.value;
   if (!cell) return {};
-  const actionWidth = canvasDataGridActionOverlayWidth(cell.canQuickDownload, !!cell.foreignKey, cellDetailButtonEnabled.value);
+  const actionWidth = canvasDataGridActionOverlayWidth(cell.canQuickDownload, !!cell.foreignKey, cellDetailButtonEnabled.value, !!cell.externalUrl);
   const edgeGap = 6;
   return {
     left: `${Math.max(rowNumberWidth.value, cell.rect.left + cell.rect.width - actionWidth - edgeGap)}px`,
@@ -7919,7 +7923,7 @@ const canvasRightAlignedActionCell = computed(() => {
   return {
     rowIndex: cell.rowIndex,
     visibleColIdx: cell.visibleColIdx,
-    reservedWidth: canvasDataGridActionReservedWidth(cell.canQuickDownload, !!cell.foreignKey, cellDetailButtonEnabled.value),
+    reservedWidth: canvasDataGridActionReservedWidth(cell.canQuickDownload, !!cell.foreignKey, cellDetailButtonEnabled.value, !!cell.externalUrl),
   };
 });
 
@@ -9854,6 +9858,25 @@ function canQuickDownloadCellValue(rowIndex: number, columnIndex: number): boole
   return canDownloadDetailBinaryValue(cellDetailFor(rowIndex, columnIndex));
 }
 
+function cellExternalUrlFor(rowIndex: number, columnIndex: number): string | null {
+  return cellExternalUrl(displayItemAt(rowIndex)?.data[columnIndex]);
+}
+
+function canOpenCellExternalUrl(rowIndex: number, columnIndex: number): boolean {
+  return cellExternalUrlFor(rowIndex, columnIndex) !== null;
+}
+
+async function openCellExternalUrl(rowIndex: number, columnIndex: number) {
+  const url = cellExternalUrlFor(rowIndex, columnIndex);
+  if (!url) return;
+  try {
+    const { open } = await import("@tauri-apps/plugin-shell");
+    await open(url);
+  } catch {
+    window.open(url, "_blank", "noopener,noreferrer");
+  }
+}
+
 function downloadCellBinaryValue(rowIndex: number, columnIndex: number, mode: BinaryCellDownloadMode) {
   void downloadDetailBinaryValue(cellDetailFor(rowIndex, columnIndex), mode);
 }
@@ -13033,6 +13056,16 @@ function openGridSnapshot() {
                               </button>
                             </template>
                           </LightDropdownMenu>
+                          <button
+                            v-if="canOpenCellExternalUrl(cell.recordIndex, cell.valueIndex)"
+                            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.openUrl')"
+                            :aria-label="t('grid.openUrl')"
+                            @mousedown.stop
+                            @click.stop="openCellExternalUrl(cell.recordIndex, cell.valueIndex)"
+                          >
+                            <ExternalLink class="h-3 w-3" />
+                          </button>
                           <button
                             v-if="cellDetailButtonEnabled"
                             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"
@@ -13773,6 +13806,16 @@ function openGridSnapshot() {
                           </button>
                         </template>
                       </LightDropdownMenu>
+                      <button
+                        v-if="canvasDetailButtonCell.externalUrl"
+                        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.openUrl')"
+                        :aria-label="t('grid.openUrl')"
+                        @mousedown.stop
+                        @click.stop="openCellExternalUrl(canvasDetailButtonCell.rowIndex, canvasDetailButtonCell.actualColIdx)"
+                      >
+                        <ExternalLink class="h-3 w-3" />
+                      </button>
                       <button
                         v-if="canvasDetailButtonCell.foreignKey"
                         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"
@@ -14005,6 +14048,16 @@ function openGridSnapshot() {
                                 </button>
                               </template>
                             </LightDropdownMenu>
+                            <button
+                              v-if="canOpenCellExternalUrl(item.displayIndex, col.actualColIdx)"
+                              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.openUrl')"
+                              :aria-label="t('grid.openUrl')"
+                              @mousedown.stop
+                              @click.stop="openCellExternalUrl(item.displayIndex, col.actualColIdx)"
+                            >
+                              <ExternalLink class="h-3 w-3" />
+                            </button>
                             <button
                               v-if="cellDetailButtonEnabled"
                               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"
diff --git a/apps/desktop/src/components/grid/__tests__/DataGridCellDetailSelection.spec.ts b/apps/desktop/src/components/grid/__tests__/DataGridCellDetailSelection.spec.ts
index d961fe6042..2f9edd7dc5 100644
--- a/apps/desktop/src/components/grid/__tests__/DataGridCellDetailSelection.spec.ts
+++ b/apps/desktop/src/components/grid/__tests__/DataGridCellDetailSelection.spec.ts
@@ -27,10 +27,10 @@ describe("DataGrid cell detail selection", () => {
   });
 
   it("removes the Canvas action overlay and reservation only when no action remains", () => {
-    expect(dataGridSource).toContain("if (!cellDetailButtonEnabled.value && !canQuickDownload && !foreignKey) return null;");
-    expect(dataGridSource).toContain("canvasDataGridActionOverlayWidth(canQuickDownload, !!foreignKey, cellDetailButtonEnabled.value)");
-    expect(dataGridSource).toContain("canvasDataGridActionOverlayWidth(cell.canQuickDownload, !!cell.foreignKey, cellDetailButtonEnabled.value)");
-    expect(dataGridSource).toContain("canvasDataGridActionReservedWidth(cell.canQuickDownload, !!cell.foreignKey, cellDetailButtonEnabled.value)");
+    expect(dataGridSource).toContain("if (!cellDetailButtonEnabled.value && !canQuickDownload && !foreignKey && !externalUrl) return null;");
+    expect(dataGridSource).toContain("canvasDataGridActionOverlayWidth(canQuickDownload, !!foreignKey, cellDetailButtonEnabled.value, !!externalUrl)");
+    expect(dataGridSource).toContain("canvasDataGridActionOverlayWidth(cell.canQuickDownload, !!cell.foreignKey, cellDetailButtonEnabled.value, !!cell.externalUrl)");
+    expect(dataGridSource).toContain("canvasDataGridActionReservedWidth(cell.canQuickDownload, !!cell.foreignKey, cellDetailButtonEnabled.value, !!cell.externalUrl)");
     expect(dataGridSource).toMatch(/watch\([\s\S]*?cellDetailButtonEnabled,[\s\S]*?scheduleCanvasDraw/);
   });
 
diff --git a/apps/desktop/src/i18n/locales/en.ts b/apps/desktop/src/i18n/locales/en.ts
index 73661d21b2..951b801a84 100644
--- a/apps/desktop/src/i18n/locales/en.ts
+++ b/apps/desktop/src/i18n/locales/en.ts
@@ -2143,6 +2143,7 @@ export default {
     columnRegularIndex: "Regular index",
     tableInfoForeignKeys: "Foreign Keys",
     foreignKeyNavigate: "Go to {table}",
+    openUrl: "Open URL in browser",
     tableInfoConstraints: "Constraints",
     tableInfoConstraintDisabled: "Disabled",
     tableInfoConstraintNotValidated: "Not validated",
diff --git a/apps/desktop/src/i18n/locales/es.ts b/apps/desktop/src/i18n/locales/es.ts
index 969cb6611d..6e57ae02b2 100644
--- a/apps/desktop/src/i18n/locales/es.ts
+++ b/apps/desktop/src/i18n/locales/es.ts
@@ -2002,6 +2002,7 @@ export default withEnglishFallback({
     columnRegularIndex: "Índice normal",
     tableInfoForeignKeys: "Claves foráneas",
     foreignKeyNavigate: "Ir a {table}",
+    openUrl: "Abrir URL en el navegador",
     tableInfoConstraints: "Restricciones",
     tableInfoConstraintDisabled: "Deshabilitada",
     tableInfoConstraintNotValidated: "Sin validar",
diff --git a/apps/desktop/src/i18n/locales/it.ts b/apps/desktop/src/i18n/locales/it.ts
index 4d23526e4f..9507f3b091 100644
--- a/apps/desktop/src/i18n/locales/it.ts
+++ b/apps/desktop/src/i18n/locales/it.ts
@@ -1989,6 +1989,7 @@ export default withEnglishFallback({
     columnRegularIndex: "Indice normale",
     tableInfoForeignKeys: "Chiavi Esterne",
     foreignKeyNavigate: "Vai a {table}",
+    openUrl: "Apri URL nel browser",
     tableInfoConstraints: "Vincoli",
     tableInfoConstraintDisabled: "Disabilitata",
     tableInfoConstraintNotValidated: "Non validata",
diff --git a/apps/desktop/src/i18n/locales/ja.ts b/apps/desktop/src/i18n/locales/ja.ts
index a238de36dd..4003d7f9a9 100644
--- a/apps/desktop/src/i18n/locales/ja.ts
+++ b/apps/desktop/src/i18n/locales/ja.ts
@@ -2001,6 +2001,7 @@ export default withEnglishFallback({
     columnRegularIndex: "通常インデックス",
     tableInfoForeignKeys: "外部キー",
     foreignKeyNavigate: "{table} へ移動",
+    openUrl: "URLをブラウザで開く",
     tableInfoConstraints: "制約",
     tableInfoConstraintDisabled: "無効",
     tableInfoConstraintNotValidated: "未検証",
diff --git a/apps/desktop/src/i18n/locales/ko.ts b/apps/desktop/src/i18n/locales/ko.ts
index 35a5d71550..5180846f28 100644
--- a/apps/desktop/src/i18n/locales/ko.ts
+++ b/apps/desktop/src/i18n/locales/ko.ts
@@ -1965,6 +1965,7 @@ export default withEnglishFallback({
     columnRegularIndex: "일반 인덱스",
     tableInfoForeignKeys: "외래 키",
     foreignKeyNavigate: "{table}(으)로 이동",
+    openUrl: "브라우저에서 URL 열기",
     tableInfoConstraints: "제약 조건",
     tableInfoConstraintDisabled: "비활성화됨",
     tableInfoConstraintNotValidated: "검증 안 됨",
diff --git a/apps/desktop/src/i18n/locales/pt-BR.ts b/apps/desktop/src/i18n/locales/pt-BR.ts
index e145b4d3dd..3d90841045 100644
--- a/apps/desktop/src/i18n/locales/pt-BR.ts
+++ b/apps/desktop/src/i18n/locales/pt-BR.ts
@@ -1991,6 +1991,7 @@ export default withEnglishFallback({
     columnRegularIndex: "Índice comum",
     tableInfoForeignKeys: "Chaves Estrangeiras",
     foreignKeyNavigate: "Ir para {table}",
+    openUrl: "Abrir URL no navegador",
     tableInfoConstraints: "Restrições",
     tableInfoConstraintDisabled: "Desabilitada",
     tableInfoConstraintNotValidated: "Não validada",
diff --git a/apps/desktop/src/i18n/locales/zh-CN.ts b/apps/desktop/src/i18n/locales/zh-CN.ts
index fb606407a2..fd7b90ac32 100644
--- a/apps/desktop/src/i18n/locales/zh-CN.ts
+++ b/apps/desktop/src/i18n/locales/zh-CN.ts
@@ -2067,6 +2067,7 @@ export default withEnglishFallback({
     columnRegularIndex: "普通索引",
     tableInfoForeignKeys: "外键",
     foreignKeyNavigate: "跳转到 {table}",
+    openUrl: "在浏览器中打开 URL",
     tableInfoConstraints: "约束",
     tableInfoConstraintDisabled: "已禁用",
     tableInfoConstraintNotValidated: "未验证",
diff --git a/apps/desktop/src/i18n/locales/zh-TW.ts b/apps/desktop/src/i18n/locales/zh-TW.ts
index b6f78824ba..9c3d1877c4 100644
--- a/apps/desktop/src/i18n/locales/zh-TW.ts
+++ b/apps/desktop/src/i18n/locales/zh-TW.ts
@@ -1994,6 +1994,7 @@ export default withEnglishFallback({
     columnRegularIndex: "一般索引",
     tableInfoForeignKeys: "外鍵",
     foreignKeyNavigate: "跳轉到 {table}",
+    openUrl: "在瀏覽器中開啟 URL",
     tableInfoConstraints: "約束",
     tableInfoConstraintDisabled: "已停用",
     tableInfoConstraintNotValidated: "未驗證",
diff --git a/apps/desktop/src/lib/dataGrid/canvasDataGridRenderer.ts b/apps/desktop/src/lib/dataGrid/canvasDataGridRenderer.ts
index 198e7ceadc..7ff8e1ce25 100644
--- a/apps/desktop/src/lib/dataGrid/canvasDataGridRenderer.ts
+++ b/apps/desktop/src/lib/dataGrid/canvasDataGridRenderer.ts
@@ -198,14 +198,14 @@ export function fitCanvasText(ctx: CanvasRenderingContext2D, text: string, maxWi
   return result;
 }
 
-export function canvasDataGridActionReservedWidth(canQuickDownload: boolean, canNavigateForeignKey = false, showCellDetail = true): number {
-  const overlayWidth = canvasDataGridActionOverlayWidth(canQuickDownload, canNavigateForeignKey, showCellDetail);
+export function canvasDataGridActionReservedWidth(canQuickDownload: boolean, canNavigateForeignKey = false, showCellDetail = true, canOpenExternalUrl = false): number {
+  const overlayWidth = canvasDataGridActionOverlayWidth(canQuickDownload, canNavigateForeignKey, showCellDetail, canOpenExternalUrl);
   return overlayWidth > 0 ? overlayWidth + 6 : 0;
 }
 
 /** 悬浮按钮组宽度：每个已启用按钮 20px + 2px 间距。 */
-export function canvasDataGridActionOverlayWidth(canQuickDownload: boolean, canNavigateForeignKey = false, showCellDetail = true): number {
-  return (showCellDetail ? 22 : 0) + (canQuickDownload ? 22 : 0) + (canNavigateForeignKey ? 22 : 0);
+export function canvasDataGridActionOverlayWidth(canQuickDownload: boolean, canNavigateForeignKey = false, showCellDetail = true, canOpenExternalUrl = false): number {
+  return (showCellDetail ? 22 : 0) + (canQuickDownload ? 22 : 0) + (canNavigateForeignKey ? 22 : 0) + (canOpenExternalUrl ? 22 : 0);
 }
 
 export function resolveCanvasCellTextLayout(options: { drawX: number; colWidth: number; dpr: number; isRightAlign: boolean; reservedWidth?: number }): { textAnchorX: number; maxWidth: number } {
diff --git a/apps/desktop/src/lib/dataGrid/cellExternalUrl.ts b/apps/desktop/src/lib/dataGrid/cellExternalUrl.ts
new file mode 100644
index 0000000000..b0bbce88a4
--- /dev/null
+++ b/apps/desktop/src/lib/dataGrid/cellExternalUrl.ts
@@ -0,0 +1,18 @@
+import type { CellValue } from "@/lib/dataGrid/cellValue";
+
+/** Return a browser-safe external URL only when the whole cell is an HTTP(S) URL. */
+export function cellExternalUrl(value: CellValue | unknown): string | null {
+  if (typeof value !== "string") return null;
+  const text = value.trim();
+  if (!text) return null;
+
+  let parsed: URL;
+  try {
+    parsed = new URL(text);
+  } catch {
+    return null;
+  }
+
+  if (parsed.protocol !== "http:" && parsed.protocol !== "https:") return null;
+  return text;
+}
diff --git a/packages/app-tests/canvasDataGridRenderer.test.ts b/packages/app-tests/canvasDataGridRenderer.test.ts
index ed0ae730fb..572925b546 100644
--- a/packages/app-tests/canvasDataGridRenderer.test.ts
+++ b/packages/app-tests/canvasDataGridRenderer.test.ts
@@ -47,7 +47,7 @@ test("DataGrid forwards hover action reservation only for right-aligned canvas c
   const source = readFileSync("apps/desktop/src/components/grid/DataGrid.vue", "utf8");
 
   assert.match(source, /columnAligns\.value\[cell\.visibleColIdx\] !== "right"/);
-  assert.match(source, /reservedWidth: canvasDataGridActionReservedWidth\(cell\.canQuickDownload, !!cell\.foreignKey, cellDetailButtonEnabled\.value\)/);
+  assert.match(source, /reservedWidth: canvasDataGridActionReservedWidth\(cell\.canQuickDownload, !!cell\.foreignKey, cellDetailButtonEnabled\.value, !!cell\.externalUrl\)/);
   assert.match(source, /rightAlignedActionCell: canvasRightAlignedActionCell\.value/);
 });