diff --git a/frontend/src/components/ChatTab.tsx b/frontend/src/components/ChatTab.tsx
index ef824bd..44f7699 100644
--- a/frontend/src/components/ChatTab.tsx
+++ b/frontend/src/components/ChatTab.tsx
@@ -16,7 +16,7 @@ import {
   PromptInputTools,
 } from "@/components/ai-elements/prompt-input";
 import { Action, Actions } from "@/components/ai-elements/actions";
-import { Fragment, useState, useEffect } from "react";
+import { Fragment, useState, useEffect, useMemo } from "react";
 import { useChat } from "@ai-sdk/react";
 import { Response } from "@/components/ai-elements/response";
 import {
@@ -56,7 +56,7 @@ export function ChatTab({ selectedTema }: ChatTabProps) {
       },
     }),
     onError: (error) => {
-      setError(`Error en el chat: ${error.message}`);
+      setError(`Chat error: ${error.message}`);
     },
   });
 
@@ -84,20 +84,32 @@ export function ChatTab({ selectedTema }: ChatTabProps) {
       {
         body: {
           dataroom: selectedTema,
-          context: `Usuario está consultando sobre el dataroom: ${selectedTema}`,
+          context: `User is asking about the dataroom: ${selectedTema}`,
         },
       },
     );
     setInput("");
   };
 
+  const hasActiveToolRequest = useMemo(() => {
+    return messages.some((message) =>
+      message.parts.some(
+        (part: any) =>
+          typeof part?.type === "string" &&
+          part.type.startsWith("tool-") &&
+          part.state === "input-available",
+      ),
+    );
+  }, [messages]);
+
+  const shouldShowGlobalLoader =
+    (status === "streaming" || status === "loading") && !hasActiveToolRequest;
+
   if (!selectedTema) {
     return (
       <div className="flex flex-col items-center justify-center h-64">
         <MessageCircle className="w-12 h-12 text-gray-400 mb-4" />
-        <p className="text-gray-500">
-          Selecciona un dataroom para iniciar el chat
-        </p>
+        <p className="text-gray-500">Select a dataroom to start chatting</p>
       </div>
     );
   }
@@ -115,9 +127,9 @@ export function ChatTab({ selectedTema }: ChatTabProps) {
               </div>
               <div className="flex-1 bg-gray-50 rounded-lg p-4">
                 <p className="text-sm text-gray-800">
-                  ¡Hola! Soy tu asistente de IA para el dataroom{" "}
-                  <strong>{selectedTema}</strong>. Puedes hacerme preguntas
-                  sobre los documentos almacenados aquí.
+                  Hi! I’m your AI assistant for dataroom{" "}
+                  <strong>{selectedTema}</strong>. Ask me anything about the
+                  stored documents.
                 </p>
               </div>
             </div>
@@ -206,11 +218,11 @@ export function ChatTab({ selectedTema }: ChatTabProps) {
                         return (
                           <div
                             key={`${message.id}-${i}`}
-                            className="flex items-center gap-2 p-4 bg-blue-50 rounded-lg border border-blue-200"
+                            className="mb-4 flex items-center gap-2 p-4 bg-blue-50 rounded-lg border border-blue-200"
                           >
                             <div className="animate-spin rounded-full h-4 w-4 border-b-2 border-blue-600"></div>
                             <span className="text-sm text-blue-700">
-                              Generando reporte de auditoría...
+                              Generating audit report…
                             </span>
                           </div>
                         );
@@ -218,7 +230,7 @@ export function ChatTab({ selectedTema }: ChatTabProps) {
                         return (
                           <div
                             key={`${message.id}-${i}`}
-                            className="mt-4 w-full"
+                            className="mt-4 mb-4 w-full"
                           >
                             <div className="max-w-full overflow-hidden">
                               <AuditReport data={part.output} />
@@ -229,12 +241,12 @@ export function ChatTab({ selectedTema }: ChatTabProps) {
                         return (
                           <div
                             key={`${message.id}-${i}`}
-                            className="p-4 bg-red-50 border border-red-200 rounded-lg"
+                            className="mb-4 p-4 bg-red-50 border border-red-200 rounded-lg"
                           >
                             <div className="flex items-center gap-2">
                               <AlertCircle className="w-4 h-4 text-red-600" />
                               <span className="text-sm font-medium text-red-800">
-                                Error generando reporte de auditoría
+                                Failed to generate audit report
                               </span>
                             </div>
                             <p className="text-sm text-red-600 mt-1">
@@ -251,11 +263,11 @@ export function ChatTab({ selectedTema }: ChatTabProps) {
                         return (
                           <div
                             key={`${message.id}-${i}`}
-                            className="flex items-center gap-2 p-4 bg-purple-50 rounded-lg border border-purple-200"
+                            className="mb-4 flex items-center gap-2 p-4 bg-purple-50 rounded-lg border border-purple-200"
                           >
                             <div className="animate-spin rounded-full h-4 w-4 border-b-2 border-purple-600"></div>
                             <span className="text-sm text-purple-700">
-                              Generando análisis histórico...
+                              Generating performance analysis…
                             </span>
                           </div>
                         );
@@ -263,7 +275,7 @@ export function ChatTab({ selectedTema }: ChatTabProps) {
                         return (
                           <div
                             key={`${message.id}-${i}`}
-                            className="mt-4 w-full"
+                            className="mt-4 mb-4 w-full"
                           >
                             <div className="max-w-full overflow-hidden">
                               <AnalystReport data={part.output} />
@@ -274,12 +286,12 @@ export function ChatTab({ selectedTema }: ChatTabProps) {
                         return (
                           <div
                             key={`${message.id}-${i}`}
-                            className="p-4 bg-red-50 border border-red-200 rounded-lg"
+                            className="mb-4 p-4 bg-red-50 border border-red-200 rounded-lg"
                           >
                             <div className="flex items-center gap-2">
                               <AlertCircle className="w-4 h-4 text-red-600" />
                               <span className="text-sm font-medium text-red-800">
-                                Error generando análisis histórico
+                                Failed to generate performance analysis
                               </span>
                             </div>
                             <p className="text-sm text-red-600 mt-1">
@@ -296,11 +308,11 @@ export function ChatTab({ selectedTema }: ChatTabProps) {
                         return (
                           <div
                             key={`${message.id}-${i}`}
-                            className="flex items-center gap-2 p-4 bg-green-50 rounded-lg border border-green-200"
+                            className="mb-4 flex items-center gap-2 p-4 bg-green-50 rounded-lg border border-green-200"
                           >
                             <div className="animate-spin rounded-full h-4 w-4 border-b-2 border-green-600"></div>
                             <span className="text-sm text-green-700">
-                              Searching the web...
+                              Searching the web…
                             </span>
                           </div>
                         );
@@ -308,7 +320,7 @@ export function ChatTab({ selectedTema }: ChatTabProps) {
                         return (
                           <div
                             key={`${message.id}-${i}`}
-                            className="mt-4 w-full"
+                            className="mt-4 mb-4 w-full"
                           >
                             <div className="max-w-full overflow-hidden">
                               <WebSearchResults data={part.output} />
@@ -319,12 +331,12 @@ export function ChatTab({ selectedTema }: ChatTabProps) {
                         return (
                           <div
                             key={`${message.id}-${i}`}
-                            className="p-4 bg-red-50 border border-red-200 rounded-lg"
+                            className="mb-4 p-4 bg-red-50 border border-red-200 rounded-lg"
                           >
                             <div className="flex items-center gap-2">
                               <AlertCircle className="w-4 h-4 text-red-600" />
                               <span className="text-sm font-medium text-red-800">
-                                Error searching the web
+                                Failed to search the web
                               </span>
                             </div>
                             <p className="text-sm text-red-600 mt-1">
@@ -341,8 +353,7 @@ export function ChatTab({ selectedTema }: ChatTabProps) {
               })}
             </div>
           ))}
-          {status === "streaming" && <Loader />}
-          {status === "loading" && <Loader />}
+          {shouldShowGlobalLoader && <Loader />}
         </div>
       </div>
 
@@ -363,7 +374,7 @@ export function ChatTab({ selectedTema }: ChatTabProps) {
             <PromptInputTextarea
               onChange={(e) => setInput(e.target.value)}
               value={input}
-              placeholder={`Pregunta algo sobre ${selectedTema}...`}
+              placeholder={`Ask something about ${selectedTema}...`}
               disabled={status === "streaming" || status === "loading"}
               className="min-h-[60px] resize-none border-0 focus:ring-0 transition-all duration-200 text-base px-4 py-3 bg-white rounded-xl"
             />
diff --git a/frontend/src/components/DashboardTab.tsx b/frontend/src/components/DashboardTab.tsx
index 38075eb..b2858a7 100644
--- a/frontend/src/components/DashboardTab.tsx
+++ b/frontend/src/components/DashboardTab.tsx
@@ -59,9 +59,8 @@ export function DashboardTab({ selectedTema }: DashboardTabProps) {
       const info = await api.getDataroomInfo(selectedTema);
       setDataroomInfo(info);
     } catch (err) {
-      const errorMessage =
-        err instanceof Error ? err.message : "Error desconocido";
-      setError(`Error cargando información: ${errorMessage}`);
+      const errorMessage = err instanceof Error ? err.message : "Unknown error";
+      setError(`Unable to load dataroom info: ${errorMessage}`);
       console.error("Error fetching dataroom info:", err);
     } finally {
       setLoading(false);
@@ -70,7 +69,7 @@ export function DashboardTab({ selectedTema }: DashboardTabProps) {
 
   const formatFileTypes = (fileTypes: Record<string, number>) => {
     const entries = Object.entries(fileTypes);
-    if (entries.length === 0) return "Sin archivos";
+    if (entries.length === 0) return "No files";
 
     return entries
       .sort(([, a], [, b]) => b - a) // Sort by count descending
@@ -90,9 +89,7 @@ export function DashboardTab({ selectedTema }: DashboardTabProps) {
     return (
       <div className="flex flex-col items-center justify-center h-64">
         <Activity className="w-12 h-12 text-gray-400 mb-4" />
-        <p className="text-gray-500">
-          Selecciona un dataroom para ver las métricas
-        </p>
+        <p className="text-gray-500">Select a dataroom to view its metrics</p>
       </div>
     );
   }
@@ -101,7 +98,7 @@ export function DashboardTab({ selectedTema }: DashboardTabProps) {
     return (
       <div className="flex flex-col items-center justify-center h-64">
         <Loader2 className="w-8 h-8 text-blue-600 animate-spin mb-4" />
-        <p className="text-gray-600">Cargando métricas...</p>
+        <p className="text-gray-600">Loading metrics…</p>
       </div>
     );
   }
@@ -124,24 +121,14 @@ export function DashboardTab({ selectedTema }: DashboardTabProps) {
     return (
       <div className="flex flex-col items-center justify-center h-64">
         <AlertCircle className="w-12 h-12 text-gray-400 mb-4" />
-        <p className="text-gray-500">
-          No se pudo cargar la información del dataroom
-        </p>
+        <p className="text-gray-500">Unable to load dataroom information</p>
       </div>
     );
   }
 
   return (
     <div className="p-6">
-      <div className="mb-6">
-        <h3 className="text-lg font-semibold text-gray-900 mb-2">
-          Métricas del Dataroom: {selectedTema}
-        </h3>
-        <p className="text-sm text-gray-600">
-          Vista general del estado y actividad del dataroom
-        </p>
-      </div>
-
+      <h4 className="text-md font-semibold text-gray-900 mb-4">Metrics</h4>
       <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6">
         {/* Files Count Card */}
         <div className="bg-white border border-gray-200 rounded-lg p-4">
@@ -150,7 +137,7 @@ export function DashboardTab({ selectedTema }: DashboardTabProps) {
               <FileText className="w-5 h-5 text-blue-600" />
             </div>
             <div>
-              <p className="text-sm font-medium text-gray-600">Archivos</p>
+              <p className="text-sm font-medium text-gray-600">Files</p>
               <p className="text-2xl font-bold text-gray-900">
                 {dataroomInfo.file_count}
               </p>
@@ -168,9 +155,7 @@ export function DashboardTab({ selectedTema }: DashboardTabProps) {
               <Database className="w-5 h-5 text-green-600" />
             </div>
             <div>
-              <p className="text-sm font-medium text-gray-600">
-                Almacenamiento
-              </p>
+              <p className="text-sm font-medium text-gray-600">Storage</p>
               <p className="text-2xl font-bold text-gray-900">
                 {dataroomInfo.total_size_mb.toFixed(1)} MB
               </p>
@@ -188,14 +173,14 @@ export function DashboardTab({ selectedTema }: DashboardTabProps) {
               <Activity className="w-5 h-5 text-purple-600" />
             </div>
             <div>
-              <p className="text-sm font-medium text-gray-600">Vectores</p>
+              <p className="text-sm font-medium text-gray-600">Vectors</p>
               <p className="text-2xl font-bold text-gray-900">
                 {dataroomInfo.vector_count ?? 0}
               </p>
               <p className="text-xs text-gray-500 mt-1">
                 {dataroomInfo.collection_exists
-                  ? "Vectores indexados"
-                  : "Sin vectores"}
+                  ? "Indexed vectors"
+                  : "No vectors"}
               </p>
             </div>
           </div>
@@ -208,10 +193,10 @@ export function DashboardTab({ selectedTema }: DashboardTabProps) {
               <TrendingUp className="w-5 h-5 text-orange-600" />
             </div>
             <div>
-              <p className="text-sm font-medium text-gray-600">Estado</p>
+              <p className="text-sm font-medium text-gray-600">Status</p>
               <div className="flex items-center gap-2">
                 <p className="text-2xl font-bold text-gray-900">
-                  {dataroomInfo.collection_exists ? "Activo" : "Inactivo"}
+                  {dataroomInfo.collection_exists ? "Active" : "Inactive"}
                 </p>
                 {dataroomInfo.collection_exists ? (
                   <CheckCircle className="w-6 h-6 text-green-600" />
@@ -222,14 +207,13 @@ export function DashboardTab({ selectedTema }: DashboardTabProps) {
               {dataroomInfo.collection_info ? (
                 <p className="text-xs text-gray-500 mt-1">
                   {dataroomInfo.collection_info.indexed_vectors_count}/
-                  {dataroomInfo.collection_info.vectors_count} vectores
-                  indexados
+                  {dataroomInfo.collection_info.vectors_count} indexed vectors
                 </p>
               ) : (
                 <p className="text-xs text-gray-500 mt-1">
                   {dataroomInfo.collection_exists
-                    ? "Colección sin datos"
-                    : "Sin colección"}
+                    ? "Collection has no data"
+                    : "No collection"}
                 </p>
               )}
             </div>
@@ -241,7 +225,7 @@ export function DashboardTab({ selectedTema }: DashboardTabProps) {
       {dataroomInfo.recent_files.length > 0 && (
         <div className="mt-8">
           <h4 className="text-md font-semibold text-gray-900 mb-4">
-            Archivos Recientes
+            Recent Files
           </h4>
           <div className="bg-white border border-gray-200 rounded-lg overflow-hidden">
             <div className="divide-y divide-gray-200">
@@ -258,7 +242,7 @@ export function DashboardTab({ selectedTema }: DashboardTabProps) {
                       </p>
                       <p className="text-xs text-gray-500">
                         {new Date(file.last_modified).toLocaleDateString(
-                          "es-ES",
+                          "en-US",
                           {
                             year: "numeric",
                             month: "short",
diff --git a/frontend/src/components/DataroomView.tsx b/frontend/src/components/DataroomView.tsx
index df73bd7..3fe0b57 100644
--- a/frontend/src/components/DataroomView.tsx
+++ b/frontend/src/components/DataroomView.tsx
@@ -87,14 +87,12 @@ export function DataroomView({ onProcessingChange }: DataroomViewProps = {}) {
         <div className="flex flex-wrap items-center justify-between gap-4">
           <div>
             <h2 className="text-2xl font-semibold text-gray-900 mb-2">
-              {selectedTema
-                ? `Dataroom: ${selectedTema}`
-                : "Selecciona un dataroom"}
+              {selectedTema ? `Dataroom: ${selectedTema}` : "Select a dataroom"}
             </h2>
             <p className="text-sm text-gray-600">
               {selectedTema
-                ? "Gestiona archivos, consulta métricas y chatea con IA sobre el contenido"
-                : "Selecciona un dataroom de la barra lateral para comenzar"}
+                ? "Manage files, review metrics, and chat with AI about the content."
+                : "Pick a dataroom from the sidebar to get started."}
             </p>
           </div>
         </div>
diff --git a/frontend/src/components/DeleteConfirmDialog.tsx b/frontend/src/components/DeleteConfirmDialog.tsx
index 3a03f4a..dbc7bc4 100644
--- a/frontend/src/components/DeleteConfirmDialog.tsx
+++ b/frontend/src/components/DeleteConfirmDialog.tsx
@@ -1,4 +1,4 @@
-import { Button } from '@/components/ui/button'
+import { Button } from "@/components/ui/button";
 import {
   Dialog,
   DialogContent,
@@ -6,17 +6,17 @@ import {
   DialogFooter,
   DialogHeader,
   DialogTitle,
-} from '@/components/ui/dialog'
-import { Trash2, AlertTriangle } from 'lucide-react'
+} from "@/components/ui/dialog";
+import { Trash2, AlertTriangle } from "lucide-react";
 
 interface DeleteConfirmDialogProps {
-  open: boolean
-  onOpenChange: (open: boolean) => void
-  onConfirm: () => void
-  title: string
-  description: string
-  fileList?: string[]
-  loading?: boolean
+  open: boolean;
+  onOpenChange: (open: boolean) => void;
+  onConfirm: () => void;
+  title: string;
+  description: string;
+  fileList?: string[];
+  loading?: boolean;
 }
 
 export function DeleteConfirmDialog({
@@ -26,7 +26,7 @@ export function DeleteConfirmDialog({
   title,
   description,
   fileList,
-  loading = false
+  loading = false,
 }: DeleteConfirmDialogProps) {
   return (
     <Dialog open={open} onOpenChange={onOpenChange}>
@@ -41,7 +41,7 @@ export function DeleteConfirmDialog({
 
         {fileList && fileList.length > 0 && (
           <div className="max-h-40 overflow-y-auto bg-gray-50 rounded p-3">
-            <p className="text-sm font-medium mb-2">Archivos a eliminar:</p>
+            <p className="text-sm	font-medium mb-2">Files to delete:</p>
             <ul className="text-sm space-y-1">
               {fileList.map((filename, index) => (
                 <li key={index} className="flex items-center gap-2">
@@ -59,17 +59,13 @@ export function DeleteConfirmDialog({
             onClick={() => onOpenChange(false)}
             disabled={loading}
           >
-            Cancelar
+            Cancel
           </Button>
-          <Button
-            variant="destructive"
-            onClick={onConfirm}
-            disabled={loading}
-          >
-            {loading ? 'Eliminando...' : 'Eliminar'}
+          <Button variant="destructive" onClick={onConfirm} disabled={loading}>
+            {loading ? "Deleting…" : "Delete"}
           </Button>
         </DialogFooter>
       </DialogContent>
     </Dialog>
-  )
-}
\ No newline at end of file
+  );
+}
diff --git a/frontend/src/components/FilesTab.tsx b/frontend/src/components/FilesTab.tsx
index 6467b75..f1f51f7 100644
--- a/frontend/src/components/FilesTab.tsx
+++ b/frontend/src/components/FilesTab.tsx
@@ -60,7 +60,7 @@ export function FilesTab({
   const [deleting, setDeleting] = useState(false);
   const [downloading, setDownloading] = useState(false);
 
-  // Estados para el modal de preview de PDF
+  // PDF preview modal state
   const [previewModalOpen, setPreviewModalOpen] = useState(false);
   const [previewFileUrl, setPreviewFileUrl] = useState<string | null>(null);
   const [previewFileName, setPreviewFileName] = useState("");
@@ -69,12 +69,12 @@ export function FilesTab({
   );
   const [loadingPreview, setLoadingPreview] = useState(false);
 
-  // Estados para el modal de chunks
+  // Chunk viewer modal state
   const [chunkViewerOpen, setChunkViewerOpen] = useState(false);
   const [chunkFileName, setChunkFileName] = useState("");
   const [chunkFileTema, setChunkFileTema] = useState("");
 
-  // Estados para chunking
+  // LandingAI chunking state
   const [chunkingConfigOpen, setChunkingConfigOpen] = useState(false);
   const [chunkingFileName, setChunkingFileName] = useState("");
   const [chunkingFileTema, setChunkingFileTema] = useState("");
@@ -123,10 +123,10 @@ export function FilesTab({
       setDeleting(true);
 
       if (fileToDelete) {
-        // Eliminar archivo individual
+        // Delete single file
         await api.deleteFile(fileToDelete, selectedTema || undefined);
       } else {
-        // Eliminar archivos seleccionados
+        // Delete selected files
         const filesToDelete = Array.from(selectedFiles);
         await api.deleteFiles(filesToDelete, selectedTema || undefined);
         clearSelection();
@@ -159,9 +159,7 @@ export function FilesTab({
     try {
       setDownloading(true);
       const filesToDownload = Array.from(selectedFiles);
-      const zipName = selectedTema
-        ? `${selectedTema}_archivos`
-        : "archivos_seleccionados";
+      const zipName = selectedTema ? `${selectedTema}_files` : "selected_files";
       await api.downloadMultipleFiles(
         filesToDownload,
         selectedTema || undefined,
@@ -234,7 +232,7 @@ export function FilesTab({
     }
   };
 
-  // Filtrar archivos por término de búsqueda
+  // Filter files by search term
   const filteredFiles = files.filter((file) =>
     file.name.toLowerCase().includes(searchTerm.toLowerCase()),
   );
@@ -250,7 +248,7 @@ export function FilesTab({
   };
 
   const formatDate = (dateString: string): string => {
-    return new Date(dateString).toLocaleDateString("es-ES", {
+    return new Date(dateString).toLocaleDateString("en-US", {
       year: "numeric",
       month: "short",
       day: "numeric",
@@ -262,15 +260,15 @@ export function FilesTab({
   const getDeleteDialogProps = () => {
     if (fileToDelete) {
       return {
-        title: "Eliminar archivo",
-        message: `¿Estás seguro de que deseas eliminar el archivo "${fileToDelete}"?`,
+        title: "Delete file",
+        message: `Are you sure you want to delete "${fileToDelete}"?`,
         fileList: [fileToDelete],
       };
     } else {
       const filesToDelete = Array.from(selectedFiles);
       return {
-        title: "Eliminar archivos seleccionados",
-        message: `¿Estás seguro de que deseas eliminar ${filesToDelete.length} archivo${filesToDelete.length > 1 ? "s" : ""}?`,
+        title: "Delete selected files",
+        message: `Are you sure you want to delete ${filesToDelete.length} file${filesToDelete.length > 1 ? "s" : ""}?`,
         fileList: filesToDelete,
       };
     }
@@ -280,9 +278,7 @@ export function FilesTab({
     return (
       <div className="flex flex-col items-center justify-center h-64">
         <FileText className="w-12 h-12 text-gray-400 mb-4" />
-        <p className="text-gray-500">
-          Selecciona un dataroom para ver sus archivos
-        </p>
+        <p className="text-gray-500">Select a dataroom to view its files</p>
       </div>
     );
   }
@@ -294,7 +290,7 @@ export function FilesTab({
           <div className="flex items-center gap-3">
             <div className="animate-spin rounded-full h-4 w-4 border-b-2 border-blue-600"></div>
             <span className="text-sm text-blue-800">
-              Procesando archivos con LandingAI...
+              Processing files with LandingAI…
             </span>
           </div>
         </div>
@@ -305,7 +301,7 @@ export function FilesTab({
           <div className="relative flex-1 max-w-md">
             <Search className="absolute left-3 top-1/2 transform -translate-y-1/2 text-gray-400 w-4 h-4" />
             <Input
-              placeholder="Buscar archivos..."
+              placeholder="Search files..."
               value={searchTerm}
               onChange={(e) => setSearchTerm(e.target.value)}
               className="pl-10"
@@ -324,7 +320,7 @@ export function FilesTab({
                   className="gap-2"
                 >
                   <Download className="w-4 h-4" />
-                  Descargar ({selectedFiles.size})
+                  Download ({selectedFiles.size})
                 </Button>
                 <Button
                   variant="outline"
@@ -334,7 +330,7 @@ export function FilesTab({
                   className="gap-2 text-red-600 hover:text-red-700"
                 >
                   <Trash2 className="w-4 h-4" />
-                  Eliminar ({selectedFiles.size})
+                  Delete ({selectedFiles.size})
                 </Button>
               </>
             )}
@@ -345,7 +341,7 @@ export function FilesTab({
               className="gap-2"
             >
               <Upload className="w-4 h-4" />
-              Subir archivo
+              Upload files
             </Button>
           </div>
         </div>
@@ -355,17 +351,17 @@ export function FilesTab({
         <div className="p-6">
           {loading ? (
             <div className="flex items-center justify-center h-64">
-              <p className="text-gray-500">Cargando archivos...</p>
+              <p className="text-gray-500">Loading files…</p>
             </div>
           ) : filteredFiles.length === 0 ? (
             <div className="flex flex-col items-center justify-center h-64">
               <FileText className="w-12 h-12 text-gray-400 mb-4" />
               <p className="text-gray-500">
                 {!selectedTema
-                  ? "Selecciona un dataroom para ver sus archivos"
+                  ? "Select a dataroom to view its files"
                   : searchTerm
-                    ? "No se encontraron archivos"
-                    : "No hay archivos en este dataroom"}
+                    ? "No files match your search"
+                    : "This dataroom has no files yet"}
               </p>
             </div>
           ) : (
@@ -387,10 +383,10 @@ export function FilesTab({
                       }}
                     />
                   </TableHead>
-                  <TableHead>Archivo</TableHead>
-                  <TableHead>Tamaño</TableHead>
-                  <TableHead>Modificado</TableHead>
-                  <TableHead className="text-right">Acciones</TableHead>
+                  <TableHead>File</TableHead>
+                  <TableHead>Size</TableHead>
+                  <TableHead>Modified</TableHead>
+                  <TableHead className="text-right">Actions</TableHead>
                 </TableRow>
               </TableHeader>
               <TableBody>
@@ -418,7 +414,7 @@ export function FilesTab({
                           onClick={() => handlePreviewFile(file.name)}
                           disabled={loadingPreview}
                           className="h-8 w-8 p-0"
-                          title="Vista previa"
+                          title="Preview"
                         >
                           <Eye className="w-4 h-4" />
                         </Button>
@@ -427,7 +423,7 @@ export function FilesTab({
                           size="sm"
                           onClick={() => handleViewChunks(file.name)}
                           className="h-8 w-8 p-0"
-                          title="Ver chunks"
+                          title="View chunks"
                         >
                           <MessageSquare className="w-4 h-4" />
                         </Button>
@@ -436,7 +432,7 @@ export function FilesTab({
                           size="sm"
                           onClick={() => handleStartChunking(file.name)}
                           className="h-8 w-8 p-0"
-                          title="Procesar con LandingAI"
+                          title="Process with LandingAI"
                         >
                           <Scissors className="w-4 h-4" />
                         </Button>
@@ -446,7 +442,7 @@ export function FilesTab({
                           onClick={() => handleDownloadFile(file.name)}
                           disabled={downloading}
                           className="h-8 w-8 p-0"
-                          title="Descargar"
+                          title="Download"
                         >
                           <Download className="w-4 h-4" />
                         </Button>
@@ -456,7 +452,7 @@ export function FilesTab({
                           onClick={() => handleDeleteFile(file.name)}
                           disabled={deleting}
                           className="h-8 w-8 p-0 text-red-600 hover:text-red-700 hover:bg-red-50"
-                          title="Eliminar"
+                          title="Delete"
                         >
                           <Trash2 className="w-4 h-4" />
                         </Button>
@@ -503,7 +499,7 @@ export function FilesTab({
         tema={chunkFileTema}
       />
 
-      {/* Modal de configuración de chunking con LandingAI */}
+      {/* LandingAI chunking config modal */}
       <ChunkingConfigModalLandingAI
         isOpen={chunkingConfigOpen}
         onClose={() => setChunkingConfigOpen(false)}
diff --git a/frontend/src/components/PDFPreviewModal.tsx b/frontend/src/components/PDFPreviewModal.tsx
index 2002a5d..ed8e181 100644
--- a/frontend/src/components/PDFPreviewModal.tsx
+++ b/frontend/src/components/PDFPreviewModal.tsx
@@ -1,25 +1,20 @@
-import { useState, useEffect } from 'react'
+import { useState, useEffect } from "react";
 import {
   Dialog,
   DialogContent,
   DialogHeader,
   DialogTitle,
-  DialogDescription
-} from '@/components/ui/dialog'
-import { Button } from '@/components/ui/button'
-import {
-  Download,
-  Loader2,
-  FileText,
-  ExternalLink
-} from 'lucide-react'
+  DialogDescription,
+} from "@/components/ui/dialog";
+import { Button } from "@/components/ui/button";
+import { Download, Loader2, FileText, ExternalLink } from "lucide-react";
 
 interface PDFPreviewModalProps {
-  open: boolean
-  onOpenChange: (open: boolean) => void
-  fileUrl: string | null
-  fileName: string
-  onDownload?: () => void
+  open: boolean;
+  onOpenChange: (open: boolean) => void;
+  fileUrl: string | null;
+  fileName: string;
+  onDownload?: () => void;
 }
 
 export function PDFPreviewModal({
@@ -27,45 +22,40 @@ export function PDFPreviewModal({
   onOpenChange,
   fileUrl,
   fileName,
-  onDownload
+  onDownload,
 }: PDFPreviewModalProps) {
-  // Estado para manejar el loading del iframe
-  const [loading, setLoading] = useState(true)
+  // Track iframe loading state
+  const [loading, setLoading] = useState(true);
 
-  // Efecto para manejar el timeout del loading
+  // Hide loading if iframe never fires onLoad
   useEffect(() => {
     if (open && fileUrl) {
-      setLoading(true)
+      setLoading(true);
 
-      // Timeout para ocultar loading automáticamente después de 3 segundos
-      // Algunos iframes no disparan onLoad correctamente
       const timeout = setTimeout(() => {
-        setLoading(false)
-      }, 3000)
+        setLoading(false);
+      }, 3000);
 
-      return () => clearTimeout(timeout)
+      return () => clearTimeout(timeout);
     }
-  }, [open, fileUrl])
+  }, [open, fileUrl]);
 
-  // Manejar cuando el iframe termina de cargar
   const handleIframeLoad = () => {
-    setLoading(false)
-  }
+    setLoading(false);
+  };
 
-  // Abrir PDF en nueva pestaña
   const openInNewTab = () => {
     if (fileUrl) {
-      window.open(fileUrl, '_blank')
+      window.open(fileUrl, "_blank");
     }
-  }
+  };
 
-  // Reiniciar loading cuando cambia el archivo
   const handleOpenChange = (open: boolean) => {
     if (open) {
-      setLoading(true)
+      setLoading(true);
     }
-    onOpenChange(open)
-  }
+    onOpenChange(open);
+  };
 
   return (
     <Dialog open={open} onOpenChange={handleOpenChange}>
@@ -75,81 +65,68 @@ export function PDFPreviewModal({
             <FileText className="w-5 h-5" />
             {fileName}
           </DialogTitle>
-          <DialogDescription>
-            Vista previa del documento PDF
-          </DialogDescription>
+          <DialogDescription>PDF preview</DialogDescription>
         </DialogHeader>
 
-        {/* Barra de controles */}
+        {/* Controls */}
         <div className="flex items-center justify-between gap-4 px-6 py-3 border-b bg-gray-50">
           <div className="flex items-center gap-2">
             <Button
               variant="outline"
               size="sm"
               onClick={openInNewTab}
-              title="Abrir en nueva pestaña"
+              title="Open in new tab"
             >
               <ExternalLink className="w-4 h-4 mr-2" />
-              Abrir en pestaña nueva
+              Open in new tab
             </Button>
           </div>
 
-          {/* Botón de descarga */}
+          {/* Download button */}
           {onDownload && (
             <Button
               variant="outline"
               size="sm"
               onClick={onDownload}
-              title="Descargar archivo"
+              title="Download file"
             >
               <Download className="w-4 h-4 mr-2" />
-              Descargar
+              Download
             </Button>
           )}
         </div>
 
-        {/* Área de visualización del PDF con iframe */}
-        <div className="flex-1 relative bg-gray-100">
+        {/* PDF iframe */}
+        <div className="flex-1 relative bg-gray-100 overflow-hidden min-h-0">
           {!fileUrl ? (
             <div className="flex items-center justify-center h-full text-center text-gray-500 p-8">
               <div>
                 <FileText className="w-16 h-16 mx-auto mb-4 text-gray-400" />
-                <p>No se ha proporcionado un archivo para previsualizar</p>
+                <p>No file available for preview</p>
               </div>
             </div>
           ) : (
             <>
-              {/* Indicador de carga */}
+              {/* Loading state */}
               {loading && (
                 <div className="absolute inset-0 flex items-center justify-center bg-white z-10">
                   <div className="text-center">
                     <Loader2 className="w-12 h-12 animate-spin text-blue-500 mx-auto mb-4" />
-                    <p className="text-gray-600">Cargando PDF...</p>
+                    <p className="text-gray-600">Loading PDF…</p>
                   </div>
                 </div>
               )}
 
-              {/*
-                Iframe para mostrar el PDF
-                El navegador maneja toda la visualización, zoom, scroll, etc.
-                Esto muestra el PDF exactamente como se vería si lo abrieras directamente
-              */}
               <iframe
                 src={fileUrl}
                 className="w-full h-full border-0"
-                title={`Vista previa de ${fileName}`}
+                title={`Preview of ${fileName}`}
                 onLoad={handleIframeLoad}
-                style={{ minHeight: '600px' }}
               />
             </>
           )}
         </div>
-
-        {/* Footer con información */}
-        <div className="px-6 py-3 border-t bg-gray-50 text-xs text-gray-500 text-center">
-          {fileName}
-        </div>
       </DialogContent>
     </Dialog>
-  )
+  );
 }
diff --git a/frontend/src/components/Sidebar.tsx b/frontend/src/components/Sidebar.tsx
index 55b8742..b390450 100644
--- a/frontend/src/components/Sidebar.tsx
+++ b/frontend/src/components/Sidebar.tsx
@@ -84,7 +84,7 @@ export function Sidebar({
   const handleCreateDataroom = async () => {
     const trimmed = newDataroomName.trim();
     if (!trimmed) {
-      setCreateError("El nombre es obligatorio");
+      setCreateError("Name is required");
       return;
     }
 
@@ -108,7 +108,7 @@ export function Sidebar({
       setCreateError(
         error instanceof Error
           ? error.message
-          : "No se pudo crear el dataroom. Inténtalo nuevamente.",
+          : "Could not create the dataroom. Please try again.",
       );
     } finally {
       setCreatingDataroom(false);
@@ -168,15 +168,15 @@ export function Sidebar({
     tema: string,
     e: React.MouseEvent<HTMLButtonElement>,
   ) => {
-    e.stopPropagation(); // Evitar que se seleccione el tema al hacer clic en el icono
+    e.stopPropagation(); // Prevent selecting the dataroom when clicking delete
 
     const confirmed = window.confirm(
-      `¿Estás seguro de que deseas eliminar el dataroom "${tema}"?\n\n` +
-        `Esto eliminará:\n` +
-        `• El dataroom de la base de datos\n` +
-        `• Todos los archivos del tema en Azure Blob Storage\n` +
-        `• La colección "${tema}" en Qdrant (si existe)\n\n` +
-        `Esta acción no se puede deshacer.`,
+      `Are you sure you want to delete the dataroom "${tema}"?\n\n` +
+        `This will remove:\n` +
+        `• The dataroom from the database\n` +
+        `• All files stored for this topic in Azure Blob Storage\n` +
+        `• The "${tema}" collection in Qdrant (if it exists)\n\n` +
+        `This action cannot be undone.`,
     );
 
     if (!confirmed) return;
@@ -191,10 +191,10 @@ export function Sidebar({
         console.error(`Error deleting dataroom "${tema}":`, error);
         // If dataroom deletion fails, fall back to legacy deletion
 
-        // Eliminar todos los archivos del tema en Azure Blob Storage
+        // Delete all topic files in Azure Blob Storage
         await api.deleteTema(tema);
 
-        // Intentar eliminar la colección en Qdrant (si existe)
+        // Attempt to delete the Qdrant collection (if it exists)
         try {
           const collectionExists = await api.checkCollectionExists(tema);
           if (collectionExists.exists) {
@@ -202,7 +202,7 @@ export function Sidebar({
           }
         } catch (collectionError) {
           console.warn(
-            `No se pudo eliminar la colección "${tema}" de Qdrant:`,
+            `Could not delete the "${tema}" collection from Qdrant:`,
             collectionError,
           );
         }
@@ -216,9 +216,9 @@ export function Sidebar({
         setSelectedTema(null);
       }
     } catch (error) {
-      console.error(`Error eliminando dataroom "${tema}":`, error);
+      console.error(`Error deleting dataroom "${tema}":`, error);
       alert(
-        `Error al eliminar el dataroom: ${error instanceof Error ? error.message : "Error desconocido"}`,
+        `Unable to delete dataroom: ${error instanceof Error ? error.message : "Unknown error"}`,
       );
     } finally {
       setDeletingTema(null);
@@ -251,9 +251,7 @@ export function Sidebar({
               className="text-slate-400 hover:text-slate-100"
               onClick={onToggleCollapse}
               disabled={disabled}
-              aria-label={
-                collapsed ? "Expandir barra lateral" : "Contraer barra lateral"
-              }
+              aria-label={collapsed ? "Expand sidebar" : "Collapse sidebar"}
             >
               {collapsed ? (
                 <ChevronRight className="h-4 w-4" />
@@ -279,7 +277,7 @@ export function Sidebar({
                 </h2>
               )}
               {renderWithTooltip(
-                "Crear dataroom",
+                "Create",
                 <Button
                   variant="ghost"
                   size="sm"
@@ -293,15 +291,15 @@ export function Sidebar({
                   disabled={disabled || creatingDataroom}
                 >
                   <Plus className="h-4 w-4" />
-                  {!collapsed && <span>Crear dataroom</span>}
+                  {!collapsed && <span>Create</span>}
                 </Button>,
               )}
             </div>
 
-            {/* Lista de temas */}
+            {/* Dataroom list */}
             {loading ? (
               <div className="text-sm text-slate-400 px-3 py-2 text-center">
-                {collapsed ? "..." : "Cargando..."}
+                {collapsed ? "..." : "Loading..."}
               </div>
             ) : Array.isArray(temas) && temas.length > 0 ? (
               temas.map((tema) => (
@@ -331,7 +329,7 @@ export function Sidebar({
                       onClick={(e) => handleDeleteTema(tema, e)}
                       disabled={deletingTema === tema || disabled}
                       className="absolute right-2 top-1/2 -translate-y-1/2 p-1.5 rounded hover:bg-red-500/20 opacity-0 group-hover:opacity-100 transition-opacity disabled:opacity-50"
-                      title="Eliminar dataroom y colección"
+                      title="Delete dataroom and collection"
                     >
                       <Trash2 className="h-4 w-4 text-red-400" />
                     </button>
@@ -341,8 +339,8 @@ export function Sidebar({
             ) : (
               <div className="text-sm text-slate-400 px-3 py-2 text-center">
                 {Array.isArray(temas) && temas.length === 0
-                  ? "No hay datarooms"
-                  : "Cargando datarooms..."}
+                  ? "No datarooms found"
+                  : "Loading datarooms..."}
               </div>
             )}
           </div>
@@ -357,7 +355,7 @@ export function Sidebar({
         >
           {onNavigateToSchemas &&
             renderWithTooltip(
-              "Gestionar Schemas",
+              "Manage schemas",
               <Button
                 variant="default"
                 size="sm"
@@ -370,12 +368,12 @@ export function Sidebar({
               >
                 <Database className={cn("h-4 w-4", !collapsed && "mr-2")} />
                 <span className={cn(collapsed && "sr-only")}>
-                  Gestionar Schemas
+                  Manage Schemas
                 </span>
               </Button>,
             )}
           {renderWithTooltip(
-            "Actualizar datarooms",
+            "Refresh datarooms",
             <Button
               variant="ghost"
               size="sm"
@@ -388,7 +386,7 @@ export function Sidebar({
             >
               <RefreshCcw className={cn("mr-2 h-4 w-4", collapsed && "mr-0")} />
               <span className={cn(collapsed && "sr-only")}>
-                Actualizar datarooms
+                Refresh datarooms
               </span>
             </Button>,
           )}
@@ -403,14 +401,14 @@ export function Sidebar({
           aria-describedby="create-dataroom-description"
         >
           <DialogHeader>
-            <DialogTitle>Crear dataroom</DialogTitle>
+            <DialogTitle>Create dataroom</DialogTitle>
             <DialogDescription id="create-dataroom-description">
-              Define un nombre único para organizar tus archivos.
+              Choose a unique name to organize your files.
             </DialogDescription>
           </DialogHeader>
           <div className="space-y-3">
             <div className="space-y-2">
-              <Label htmlFor="dataroom-name">Nombre del dataroom</Label>
+              <Label htmlFor="dataroom-name">Dataroom name</Label>
               <Input
                 id="dataroom-name"
                 value={newDataroomName}
@@ -420,7 +418,7 @@ export function Sidebar({
                     setCreateError(null);
                   }
                 }}
-                placeholder="Ej: normativa, contratos, fiscal..."
+                placeholder="e.g., policies, contracts, finance..."
                 autoFocus
               />
               {createError && (
@@ -434,13 +432,13 @@ export function Sidebar({
               onClick={() => handleCreateDialogOpenChange(false)}
               disabled={creatingDataroom}
             >
-              Cancelar
+              Cancel
             </Button>
             <Button
               onClick={handleCreateDataroom}
               disabled={creatingDataroom || newDataroomName.trim() === ""}
             >
-              {creatingDataroom ? "Creando..." : "Crear dataroom"}
+              {creatingDataroom ? "Creating…" : "Create"}
             </Button>
           </DialogFooter>
         </DialogContent>
diff --git a/redis_data/appendonlydir/appendonly.aof.1.incr.aof b/redis_data/appendonlydir/appendonly.aof.1.incr.aof
index 3fd8b75..f935c61 100644
--- a/redis_data/appendonlydir/appendonly.aof.1.incr.aof
+++ b/redis_data/appendonlydir/appendonly.aof.1.incr.aof
@@ -721,3 +721,71 @@ $20
 extraction_timestamp
 $26
 2025-11-09T16:12:46.318554
+*2
+$3
+DEL
+$56
+:app.models.dataroom.DataRoom:01K9J2R5ZGS96G60P0G80W248Z
+*10
+$4
+HSET
+$56
+:app.models.dataroom.DataRoom:01K9MSH70T90HY2VB6DPJVQZFQ
+$2
+pk
+$26
+01K9MSH70T90HY2VB6DPJVQZFQ
+$4
+name
+$9
+NEW HEART
+$10
+collection
+$9
+new_heart
+$7
+storage
+$9
+new_heart
+*10
+$4
+HSET
+$56
+:app.models.dataroom.DataRoom:01K9MSJ57MS3DZFBG5TQXBDD6W
+$2
+pk
+$26
+01K9MSJ57MS3DZFBG5TQXBDD6W
+$4
+name
+$5
+OHANA
+$10
+collection
+$5
+ohana
+$7
+storage
+$5
+ohana
+*10
+$4
+HSET
+$56
+:app.models.dataroom.DataRoom:01K9MSJJTH48BR7KQ27PXB2C3S
+$2
+pk
+$26
+01K9MSJJTH48BR7KQ27PXB2C3S
+$4
+name
+$5
+SOSFS
+$10
+collection
+$5
+sosfs
+$7
+storage
+$5
+sosfs
diff --git a/redis_data/dump.rdb b/redis_data/dump.rdb
index 79fded5..75d467c 100644
Binary files a/redis_data/dump.rdb and b/redis_data/dump.rdb differ