diff --git a/frontend/app/video/subtitles/page.tsx b/frontend/app/video/subtitles/page.tsx
index 120eaf6..2afc2ea 100644
--- a/frontend/app/video/subtitles/page.tsx
+++ b/frontend/app/video/subtitles/page.tsx
@@ -118,6 +118,16 @@ export default function SubtitlesPage() {
       formData.append('background_opacity', '0.0');
       formData.append('word_timestamps', '0');
 
+      // Debug: Log FormData contents
+      console.log('📤 Sending FormData to subtitle API:');
+      for (const [key, value] of formData.entries()) {
+        if (value instanceof File) {
+          console.log(`  ${key}:`, value.name, `(${value.size} bytes, ${value.type})`);
+        } else {
+          console.log(`  ${key}:`, value);
+        }
+      }
+
       const response = await modulesApi.processSubtitles(formData);
 
       const job = response.data;