diff --git a/frontend/src/renderer/utils/helpers.js b/frontend/src/renderer/utils/helpers.js
new file mode 100644
index 0000000..0d9f98c
--- /dev/null
+++ b/frontend/src/renderer/utils/helpers.js
@@ -0,0 +1,25 @@
+export const formatFileSize = (bytes) => {
+  if (!bytes) return '0 B';
+  const units = ['B', 'KB', 'MB', 'GB', 'TB'];
+  const i = Math.floor(Math.log(bytes) / Math.log(1024));
+  return `${(bytes / Math.pow(1024, i)).toFixed(2)} ${units[i]}`;
+};
+
+export const formatDate = (date) => {
+  if (!date) return '';
+  return new Date(date).toLocaleDateString('zh-CN', {
+    year: 'numeric',
+    month: '2-digit',
+    day: '2-digit',
+    hour: '2-digit',
+    minute: '2-digit'
+  });
+};
+
+export const getFileExt = (filename) => {
+  return filename?.split('.').pop()?.toLowerCase() || '';
+};
+
+export const generateId = () => {
+  return Date.now().toString(36) + Math.random().toString(36).substr(2);
+};