diff --git a/README.md b/README.md
index a4364ca..2b39ddf 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 A visual document analysis studio powered by [Docling](https://github.com/DS4SD/docling).
 Upload a PDF, configure the extraction pipeline, and visualize the results — text, tables, images, formulas, bounding boxes — all from your browser.
 
-![Docling Studio — Visual Mode](docs/screenshots/visual-mode.png)
+![Docling Studio — Execution Result](docs/screenshots/DS-execution-result.png)
 
 ## Features
 
@@ -20,7 +20,7 @@ Upload a PDF, configure the extraction pipeline, and visualize the results — t
 
 | Import | Configure | Results |
 |--------|-----------|---------|
-| ![Import](docs/screenshots/import.png) | ![Configure](docs/screenshots/configure.png) | ![Results](docs/screenshots/results.png) |
+| ![Import](docs/screenshots/DS-load-document.png) | ![Configure](docs/screenshots/DS-configure-execution.png) | ![Results](docs/screenshots/DS-execution-result.png) |
 
 </details>
 
@@ -79,7 +79,7 @@ docker compose up --build
 
 Open [http://localhost:3000](http://localhost:3000)
 
-> **Note:** First analysis may take a few minutes as Docling downloads its ML models (~40 MB) on first run.
+> **Note:** The first analysis takes a bit longer as Docling downloads and caches its ML models (~400 MB). Subsequent runs are fast.
 
 ### Local Development
 
@@ -122,13 +122,13 @@ All configuration is done via environment variables. See [`.env.example`](.env.e
 
 ## Performance & System Requirements
 
-Docling runs ML models (layout analysis, OCR, table structure) on **CPU by default**. Processing time depends on document size and complexity.
+Docling leverages optimized ML models (layout analysis, OCR, table structure) that run efficiently on CPU. The first analysis takes slightly longer as models are downloaded and cached (~400 MB). Subsequent runs are fast, even on large documents.
 
 | Document type | Pages | Approx. time (CPU) |
 |---------------|-------|---------------------|
-| Simple report | 5-10  | 1-3 min |
-| Research paper | 15-30 | 5-10 min |
-| Dense PDF with tables | 30+  | 10-20 min |
+| Simple report | 5-10  | ~30s-1 min |
+| Research paper | 10-30 | ~1-2 min |
+| Large document | 100+  | ~2-5 min |
 
 ### Docker Desktop settings
 
@@ -144,17 +144,15 @@ The document parser needs **at least 4 GB of RAM**. Recommended Docker Desktop a
 
 ### Platform support
 
-All Docker images are **multi-arch** (linux/amd64 + linux/arm64). Works natively on:
+All Docker images are **multi-arch** (linux/amd64 + linux/arm64). All processing runs on **CPU** — no GPU required.
 
-| Platform | Architecture | GPU acceleration |
-|----------|-------------|-----------------|
-| **macOS Apple Silicon** (M1/M2/M3) | arm64 | Not in Docker (MPS unavailable). Run parser locally for GPU. |
-| **macOS Intel** | amd64 | N/A |
-| **Linux x86_64** | amd64 | NVIDIA GPU via `docker compose --profile gpu` (coming soon) |
-| **Linux ARM** (Raspberry Pi 5, Ampere) | arm64 | CPU only |
-| **Windows + WSL2** | amd64 | NVIDIA GPU passthrough supported |
-
-> **Tip for Mac users:** For faster processing, run the document parser **locally** (outside Docker) to leverage Apple Silicon's MPS acceleration when supported by PyTorch/Docling.
+| Platform | Architecture |
+|----------|-------------|
+| **macOS Apple Silicon** (M1/M2/M3/M4) | arm64 |
+| **macOS Intel** | amd64 |
+| **Linux x86_64** | amd64 |
+| **Linux ARM** (Raspberry Pi 5, Ampere) | arm64 |
+| **Windows + WSL2** | amd64 |
 
 ## Tech Stack
 
diff --git a/docs/screenshots/DS-configure-execution.png b/docs/screenshots/DS-configure-execution.png
new file mode 100644
index 0000000..38eefb2
Binary files /dev/null and b/docs/screenshots/DS-configure-execution.png differ
diff --git a/docs/screenshots/DS-execution-result.png b/docs/screenshots/DS-execution-result.png
new file mode 100644
index 0000000..8f3f241
Binary files /dev/null and b/docs/screenshots/DS-execution-result.png differ
diff --git a/docs/screenshots/DS-load-document.png b/docs/screenshots/DS-load-document.png
new file mode 100644
index 0000000..021c366
Binary files /dev/null and b/docs/screenshots/DS-load-document.png differ
diff --git a/frontend/src/app/App.vue b/frontend/src/app/App.vue
index 080b9a6..28afa5a 100644
--- a/frontend/src/app/App.vue
+++ b/frontend/src/app/App.vue
@@ -10,6 +10,9 @@
 <script setup>
 import { RouterView } from 'vue-router'
 import { AppSidebar } from '../shared/ui/index.js'
+import { useSettingsStore } from '../features/settings/store.js'
+
+useSettingsStore()
 </script>
 
 <style>
@@ -46,6 +49,29 @@ import { AppSidebar } from '../shared/ui/index.js'
   --transition: 150ms ease;
 }
 
+html.light {
+  --bg: #FAFAFA;
+  --bg-surface: #FFFFFF;
+  --bg-elevated: #F4F4F5;
+  --bg-hover: #E4E4E7;
+
+  --accent: #F97316;
+  --accent-hover: #EA580C;
+  --accent-muted: rgba(249, 115, 22, 0.10);
+
+  --text: #18181B;
+  --text-secondary: #52525B;
+  --text-muted: #A1A1AA;
+
+  --border: #E4E4E7;
+  --border-light: #D4D4D8;
+
+  --success: #16A34A;
+  --error: #DC2626;
+  --warning: #CA8A04;
+  --info: #2563EB;
+}
+
 * { margin: 0; padding: 0; box-sizing: border-box; }
 
 body {
diff --git a/frontend/src/features/analysis/ui/ImageGallery.vue b/frontend/src/features/analysis/ui/ImageGallery.vue
index 7149b33..9e57560 100644
--- a/frontend/src/features/analysis/ui/ImageGallery.vue
+++ b/frontend/src/features/analysis/ui/ImageGallery.vue
@@ -1,7 +1,7 @@
 <template>
   <div class="image-gallery">
     <div v-if="images.length === 0" class="gallery-empty">
-      No images detected in this document
+      {{ t('results.noImages') }}
     </div>
     <div v-else class="gallery-grid">
       <div
@@ -11,7 +11,7 @@
       >
         <div class="card-header">
           <span class="card-type">Picture</span>
-          <span class="card-page">Page {{ img.page }}</span>
+          <span class="card-page">{{ t('results.page') }} {{ img.page }}</span>
         </div>
         <div class="card-content" v-if="img.content">
           {{ img.content.substring(0, 100) }}
@@ -27,6 +27,9 @@
 
 <script setup>
 import { computed } from 'vue'
+import { useI18n } from '../../../shared/i18n.js'
+
+const { t } = useI18n()
 
 const props = defineProps({
   pages: { type: Array, default: () => [] }
diff --git a/frontend/src/features/analysis/ui/MarkdownViewer.vue b/frontend/src/features/analysis/ui/MarkdownViewer.vue
index c7771cc..e3301cf 100644
--- a/frontend/src/features/analysis/ui/MarkdownViewer.vue
+++ b/frontend/src/features/analysis/ui/MarkdownViewer.vue
@@ -5,11 +5,13 @@
 <script setup>
 import { computed } from 'vue'
 import { marked } from 'marked'
+import { useI18n } from '../../../shared/i18n.js'
 
 const props = defineProps({ content: String })
+const { t } = useI18n()
 
 const rendered = computed(() => {
-  if (!props.content) return '<p class="empty">No markdown content</p>'
+  if (!props.content) return `<p class="empty">${t('results.noMarkdown')}</p>`
   return marked.parse(props.content)
 })
 </script>
diff --git a/frontend/src/features/analysis/ui/ResultTabs.vue b/frontend/src/features/analysis/ui/ResultTabs.vue
index 177262e..13bf849 100644
--- a/frontend/src/features/analysis/ui/ResultTabs.vue
+++ b/frontend/src/features/analysis/ui/ResultTabs.vue
@@ -14,7 +14,7 @@
 
     <!-- Page chip -->
     <div class="page-indicator" v-if="totalPages > 0">
-      <span class="page-chip">Page {{ currentPage }} sur {{ totalPages }}</span>
+      <span class="page-chip">{{ t('results.pageOf', { current: currentPage, total: totalPages }) }}</span>
     </div>
 
     <div class="tab-content">
@@ -27,17 +27,17 @@
   </div>
   <div v-else-if="store.currentAnalysis?.status === 'RUNNING'" class="result-placeholder">
     <div class="spinner-large" />
-    <span>Analyse en cours...</span>
+    <span>{{ t('studio.analysisRunning') }}</span>
   </div>
   <div v-else-if="store.currentAnalysis?.status === 'FAILED'" class="result-placeholder error">
     <svg viewBox="0 0 20 20" fill="currentColor" class="error-icon"><path fill-rule="evenodd" d="M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7 4a1 1 0 11-2 0 1 1 0 012 0zm-1-9a1 1 0 00-1 1v4a1 1 0 102 0V6a1 1 0 00-1-1z" clip-rule="evenodd"/></svg>
-    <span>{{ store.currentAnalysis.errorMessage || 'L\'analyse a échoué' }}</span>
+    <span>{{ store.currentAnalysis.errorMessage || t('results.analysisFailed') }}</span>
   </div>
   <div v-else class="result-placeholder">
     <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5" class="empty-icon">
       <path d="M19.5 14.25v-2.625a3.375 3.375 0 00-3.375-3.375h-1.5A1.125 1.125 0 0113.5 7.125v-1.5a3.375 3.375 0 00-3.375-3.375H8.25m5.231 13.481L15 17.25m-4.5-15H5.625c-.621 0-1.125.504-1.125 1.125v16.5c0 .621.504 1.125 1.125 1.125h12.75c.621 0 1.125-.504 1.125-1.125V11.25a9 9 0 00-9-9zm3.75 11.625a2.625 2.625 0 11-5.25 0 2.625 2.625 0 015.25 0z"/>
     </svg>
-    <span>Lancez une analyse pour voir les résultats</span>
+    <span>{{ t('results.runAnalysis') }}</span>
   </div>
 </template>
 
@@ -46,19 +46,21 @@ import { ref, computed } from 'vue'
 import { useAnalysisStore } from '../store.js'
 import MarkdownViewer from './MarkdownViewer.vue'
 import ImageGallery from './ImageGallery.vue'
+import { useI18n } from '../../../shared/i18n.js'
 
 const props = defineProps({
   currentPage: { type: Number, default: 1 }
 })
 
 const store = useAnalysisStore()
+const { t } = useI18n()
 const activeTab = ref('text')
 
-const tabs = [
-  { id: 'text', label: 'Résultat du texte' },
-  { id: 'markdown', label: 'Markdown' },
-  { id: 'images', label: 'Images' }
-]
+const tabs = computed(() => [
+  { id: 'text', label: t('results.textResult') },
+  { id: 'markdown', label: t('results.markdown') },
+  { id: 'images', label: t('results.images') }
+])
 
 const totalPages = computed(() => store.currentPages.length)
 
diff --git a/frontend/src/features/document/ui/DocumentUpload.vue b/frontend/src/features/document/ui/DocumentUpload.vue
index 4954f77..99e8327 100644
--- a/frontend/src/features/document/ui/DocumentUpload.vue
+++ b/frontend/src/features/document/ui/DocumentUpload.vue
@@ -10,14 +10,14 @@
     <input ref="fileInput" type="file" accept=".pdf" hidden @change="onFileSelect" />
     <div v-if="store.uploading" class="upload-state">
       <div class="spinner" />
-      <span>Uploading...</span>
+      <span>{{ t('upload.uploading') }}</span>
     </div>
     <div v-else class="upload-state">
       <svg class="upload-icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5">
         <path d="M12 16V4m0 0L8 8m4-4l4 4M4 17v2a1 1 0 001 1h14a1 1 0 001-1v-2" />
       </svg>
-      <span class="upload-text">Drop a PDF here or click to upload</span>
-      <span class="upload-hint">Max 50MB</span>
+      <span class="upload-text">{{ t('upload.drop') }}</span>
+      <span class="upload-hint">{{ t('upload.maxSize') }}</span>
     </div>
   </div>
 </template>
@@ -25,8 +25,10 @@
 <script setup>
 import { ref } from 'vue'
 import { useDocumentStore } from '../store.js'
+import { useI18n } from '../../../shared/i18n.js'
 
 const store = useDocumentStore()
+const { t } = useI18n()
 const fileInput = ref(null)
 const dragging = ref(false)
 
diff --git a/frontend/src/features/history/ui/HistoryList.vue b/frontend/src/features/history/ui/HistoryList.vue
index 2da71e3..cd49c10 100644
--- a/frontend/src/features/history/ui/HistoryList.vue
+++ b/frontend/src/features/history/ui/HistoryList.vue
@@ -1,7 +1,7 @@
 <template>
   <div class="history-list">
     <div v-if="store.analyses.length === 0" class="history-empty">
-      No analyses yet. Go to Studio to analyze your first document.
+      {{ t('history.empty') }}
     </div>
     <div v-else class="history-items">
       <div
@@ -31,8 +31,10 @@
 
 <script setup>
 import { useHistoryStore } from '../store.js'
+import { useI18n } from '../../../shared/i18n.js'
 
 const store = useHistoryStore()
+const { t } = useI18n()
 
 function statusClass(status) {
   return {
diff --git a/frontend/src/features/settings/store.js b/frontend/src/features/settings/store.js
index 011cc4f..144ae37 100644
--- a/frontend/src/features/settings/store.js
+++ b/frontend/src/features/settings/store.js
@@ -1,8 +1,20 @@
 import { defineStore } from 'pinia'
-import { ref } from 'vue'
+import { ref, watch, watchEffect } from 'vue'
 
 export const useSettingsStore = defineStore('settings', () => {
   const apiUrl = ref('http://localhost:8000')
+  const theme = ref(localStorage.getItem('docling-theme') || 'dark')
+  const locale = ref(localStorage.getItem('docling-locale') || 'fr')
 
-  return { apiUrl }
+  watch(theme, (v) => localStorage.setItem('docling-theme', v))
+  watch(locale, (v) => localStorage.setItem('docling-locale', v))
+
+  watchEffect(() => {
+    document.documentElement.classList.toggle('light', theme.value === 'light')
+  })
+
+  function setTheme(t) { theme.value = t }
+  function setLocale(l) { locale.value = l }
+
+  return { apiUrl, theme, locale, setTheme, setLocale }
 })
diff --git a/frontend/src/features/settings/ui/SettingsPanel.vue b/frontend/src/features/settings/ui/SettingsPanel.vue
index 02d561b..b958d42 100644
--- a/frontend/src/features/settings/ui/SettingsPanel.vue
+++ b/frontend/src/features/settings/ui/SettingsPanel.vue
@@ -1,11 +1,27 @@
 <template>
   <div class="settings-panel">
     <div class="setting-group">
-      <label class="setting-label">API URL</label>
-      <input class="setting-input" v-model="store.apiUrl" readonly />
+      <label class="setting-label">{{ t('settings.theme') }}</label>
+      <div class="setting-toggle">
+        <button :class="{ active: store.theme === 'dark' }" @click="store.setTheme('dark')">
+          {{ t('settings.themeDark') }}
+        </button>
+        <button :class="{ active: store.theme === 'light' }" @click="store.setTheme('light')">
+          {{ t('settings.themeLight') }}
+        </button>
+      </div>
     </div>
+
     <div class="setting-group">
-      <label class="setting-label">Version</label>
+      <label class="setting-label">{{ t('settings.language') }}</label>
+      <div class="setting-toggle">
+        <button :class="{ active: store.locale === 'fr' }" @click="store.setLocale('fr')">FR</button>
+        <button :class="{ active: store.locale === 'en' }" @click="store.setLocale('en')">EN</button>
+      </div>
+    </div>
+
+    <div class="setting-group">
+      <label class="setting-label">{{ t('settings.version') }}</label>
       <span class="setting-value">0.1.0</span>
     </div>
   </div>
@@ -13,7 +29,10 @@
 
 <script setup>
 import { useSettingsStore } from '../store.js'
+import { useI18n } from '../../../shared/i18n.js'
+
 const store = useSettingsStore()
+const { t } = useI18n()
 </script>
 
 <style scoped>
@@ -38,6 +57,36 @@ const store = useSettingsStore()
   letter-spacing: 0.05em;
 }
 
+.setting-toggle {
+  display: flex;
+  background: var(--bg-elevated);
+  border: 1px solid var(--border);
+  border-radius: var(--radius-sm);
+  overflow: hidden;
+}
+
+.setting-toggle button {
+  flex: 1;
+  padding: 8px 16px;
+  font-size: 13px;
+  font-weight: 500;
+  color: var(--text-secondary);
+  background: transparent;
+  border: none;
+  cursor: pointer;
+  transition: all var(--transition);
+}
+
+.setting-toggle button:hover {
+  color: var(--text);
+  background: var(--bg-hover);
+}
+
+.setting-toggle button.active {
+  background: var(--accent-muted);
+  color: var(--accent);
+}
+
 .setting-input {
   background: var(--bg-elevated);
   border: 1px solid var(--border);
diff --git a/frontend/src/pages/HistoryPage.vue b/frontend/src/pages/HistoryPage.vue
index 115e67b..9243c55 100644
--- a/frontend/src/pages/HistoryPage.vue
+++ b/frontend/src/pages/HistoryPage.vue
@@ -1,7 +1,7 @@
 <template>
   <div class="history-page">
     <div class="page-header">
-      <h1 class="page-title">Analysis History</h1>
+      <h1 class="page-title">{{ t('history.title') }}</h1>
     </div>
     <div class="page-content">
       <HistoryList />
@@ -12,8 +12,10 @@
 <script setup>
 import { onMounted } from 'vue'
 import { HistoryList, useHistoryStore } from '../features/history/index.js'
+import { useI18n } from '../shared/i18n.js'
 
 const store = useHistoryStore()
+const { t } = useI18n()
 onMounted(() => store.load())
 </script>
 
diff --git a/frontend/src/pages/SettingsPage.vue b/frontend/src/pages/SettingsPage.vue
index 25af3a4..ee9e653 100644
--- a/frontend/src/pages/SettingsPage.vue
+++ b/frontend/src/pages/SettingsPage.vue
@@ -1,7 +1,7 @@
 <template>
   <div class="settings-page">
     <div class="page-header">
-      <h1 class="page-title">Settings</h1>
+      <h1 class="page-title">{{ t('settings.title') }}</h1>
     </div>
     <div class="page-content">
       <SettingsPanel />
@@ -11,6 +11,9 @@
 
 <script setup>
 import { SettingsPanel } from '../features/settings/index.js'
+import { useI18n } from '../shared/i18n.js'
+
+const { t } = useI18n()
 </script>
 
 <style scoped>
diff --git a/frontend/src/pages/StudioPage.vue b/frontend/src/pages/StudioPage.vue
index 049e010..61c77b5 100644
--- a/frontend/src/pages/StudioPage.vue
+++ b/frontend/src/pages/StudioPage.vue
@@ -5,11 +5,11 @@
       <div class="import-logo">
         <span class="logo-icon">D</span>
       </div>
-      <h1 class="import-title">Intelligence des documents</h1>
-      <p class="import-subtitle">Importez un document PDF pour commencer l'analyse avec Docling</p>
+      <h1 class="import-title">{{ t('studio.title') }}</h1>
+      <p class="import-subtitle">{{ t('studio.subtitle') }}</p>
       <DocumentUpload />
       <div class="import-docs" v-if="documentStore.documents.length">
-        <label class="section-label">Documents r&eacute;cents</label>
+        <label class="section-label">{{ t('studio.recentDocs') }}</label>
         <DocumentList />
       </div>
     </div>
@@ -20,25 +20,25 @@
     <!-- Top bar -->
     <div class="studio-topbar">
       <div class="topbar-left">
-        <h1 class="topbar-title">Intelligence des documents</h1>
+        <h1 class="topbar-title">{{ t('studio.title') }}</h1>
         <div class="mode-toggle">
           <button
             class="toggle-btn"
             :class="{ active: mode === 'configurer' }"
             @click="mode = 'configurer'"
-          >Configurer</button>
+          >{{ t('studio.configure') }}</button>
           <button
             class="toggle-btn"
             :class="{ active: mode === 'verifier' }"
             @click="mode = 'verifier'"
             :disabled="!analysisStore.currentAnalysis"
-          >V&eacute;rifier</button>
+          >{{ t('studio.verify') }}</button>
         </div>
       </div>
       <div class="topbar-actions">
         <button class="topbar-btn" @click="addMore">
           <svg viewBox="0 0 20 20" fill="currentColor" class="btn-icon"><path d="M10 3a1 1 0 011 1v5h5a1 1 0 110 2h-5v5a1 1 0 11-2 0v-5H4a1 1 0 110-2h5V4a1 1 0 011-1z"/></svg>
-          Ajouter des fichiers
+          {{ t('studio.addFiles') }}
         </button>
         <button
           class="topbar-btn primary"
@@ -48,7 +48,7 @@
         >
           <div v-if="analysisStore.running" class="spinner-sm" />
           <svg v-else viewBox="0 0 20 20" fill="currentColor" class="btn-icon"><path fill-rule="evenodd" d="M10 18a8 8 0 100-16 8 8 0 000 16zM9.555 7.168A1 1 0 008 8v4a1 1 0 001.555.832l3-2a1 1 0 000-1.664l-3-2z" clip-rule="evenodd"/></svg>
-          {{ analysisStore.running ? 'Analyse...' : 'Ex\u00e9cuter' }}
+          {{ analysisStore.running ? t('studio.analyzing') : t('studio.run') }}
         </button>
       </div>
     </div>
@@ -58,7 +58,7 @@
       <div class="doc-info-left">
         <svg class="doc-icon" viewBox="0 0 20 20" fill="currentColor"><path fill-rule="evenodd" d="M4 4a2 2 0 012-2h4.586A2 2 0 0112 2.586L15.414 6A2 2 0 0116 7.414V16a2 2 0 01-2 2H6a2 2 0 01-2-2V4z" clip-rule="evenodd"/></svg>
         <span class="doc-filename">{{ selectedDoc.filename }}</span>
-        <span class="doc-status-chip loaded">Charg&eacute;</span>
+        <span class="doc-status-chip loaded">{{ t('studio.loaded') }}</span>
       </div>
       <div class="doc-info-right" v-if="analysisStore.currentAnalysis">
         <span class="info-badge" v-if="analysisStore.currentAnalysis.status === 'COMPLETED'">
@@ -67,11 +67,11 @@
         </span>
         <span class="info-badge" v-if="analysisStore.currentAnalysis.status === 'RUNNING'">
           <div class="spinner-xs" />
-          Analyse en cours...
+          {{ t('studio.analysisRunning') }}
         </span>
         <span class="info-badge error" v-if="analysisStore.currentAnalysis.status === 'FAILED'">
           <span class="info-dot error" />
-          &Eacute;chec
+          {{ t('studio.failed') }}
         </span>
       </div>
     </div>
@@ -108,7 +108,7 @@
               @click="visualMode = !visualMode"
             >
               <svg viewBox="0 0 20 20" fill="currentColor" class="btn-icon"><path d="M10 12a2 2 0 100-4 2 2 0 000 4z"/><path fill-rule="evenodd" d="M.458 10C1.732 5.943 5.522 3 10 3s8.268 2.943 9.542 7c-1.274 4.057-5.064 7-9.542 7S1.732 14.057.458 10zM14 10a4 4 0 11-8 0 4 4 0 018 0z" clip-rule="evenodd"/></svg>
-              Visuel
+              {{ t('studio.visual') }}
             </button>
           </template>
         </div>
@@ -138,7 +138,7 @@
         <div v-if="mode === 'configurer'" class="config-panel">
           <div class="config-section">
             <label class="config-label">
-              Mod&egrave;le
+              {{ t('config.model') }}
               <span class="config-hint">?</span>
             </label>
             <div class="config-select-display">
@@ -149,26 +149,26 @@
 
           <div class="config-section">
             <label class="config-label">
-              Pages
+              {{ t('config.pages') }}
               <span class="config-hint">?</span>
             </label>
-            <input type="text" class="config-input" placeholder='par ex. "1-4,8"' v-model="pageRange" />
+            <input type="text" class="config-input" :placeholder="t('config.pagesPlaceholder')" v-model="pageRange" />
           </div>
 
           <div class="config-section">
             <label class="config-label">
-              Extraire les tableaux
+              {{ t('config.extractTables') }}
               <span class="config-hint">?</span>
             </label>
             <select class="config-select" v-model="tableMode">
-              <option value="markdown">Markdown int&eacute;gr&eacute;</option>
+              <option value="markdown">{{ t('config.markdownIntegrated') }}</option>
               <option value="html">HTML</option>
               <option value="csv">CSV</option>
             </select>
           </div>
 
           <div class="config-section">
-            <label class="config-label">Extraire</label>
+            <label class="config-label">{{ t('config.extract') }}</label>
             <div class="extract-options">
               <button
                 v-for="opt in extractOptions"
@@ -187,15 +187,15 @@
 
           <div class="config-section">
             <label class="config-label">
-              Annoter les images
+              {{ t('config.annotateImages') }}
               <span class="config-hint">?</span>
             </label>
-            <button class="config-add-btn">Ajouter +</button>
+            <button class="config-add-btn">{{ t('config.add') }}</button>
           </div>
 
           <!-- Documents list at bottom -->
           <div class="config-section config-docs">
-            <label class="config-label">Documents</label>
+            <label class="config-label">{{ t('config.documents') }}</label>
             <DocumentList />
           </div>
         </div>
@@ -217,9 +217,11 @@ import { DocumentUpload, DocumentList } from '../features/document/index.js'
 import { ResultTabs } from '../features/analysis/index.js'
 import BboxOverlay from '../features/analysis/ui/BboxOverlay.vue'
 import { getPreviewUrl } from '../features/document/api.js'
+import { useI18n } from '../shared/i18n.js'
 
 const documentStore = useDocumentStore()
 const analysisStore = useAnalysisStore()
+const { t } = useI18n()
 
 const mode = ref('configurer')
 const currentPage = ref(1)
@@ -242,11 +244,11 @@ function onPdfImageLoad() {
   nextTick(() => bboxOverlayRef.value?.draw())
 }
 
-const extractOptions = [
-  { id: 'images', label: 'Images', icon: 'image' },
-  { id: 'header', label: 'En-t\u00eate', icon: 'header' },
-  { id: 'footer', label: 'Pied de page', icon: 'footer' }
-]
+const extractOptions = computed(() => [
+  { id: 'images', label: t('config.images'), icon: 'image' },
+  { id: 'header', label: t('config.header'), icon: 'header' },
+  { id: 'footer', label: t('config.footer'), icon: 'footer' }
+])
 const activeExtracts = reactive(new Set(['images']))
 
 function toggleExtract(id) {
diff --git a/frontend/src/shared/i18n.js b/frontend/src/shared/i18n.js
new file mode 100644
index 0000000..b0e7c56
--- /dev/null
+++ b/frontend/src/shared/i18n.js
@@ -0,0 +1,140 @@
+import { useSettingsStore } from '../features/settings/store.js'
+
+const messages = {
+  fr: {
+    // Sidebar
+    'nav.studio': 'Studio',
+    'nav.history': 'Historique',
+    'nav.settings': 'Paramètres',
+
+    // Studio — import
+    'studio.title': 'Intelligence des documents',
+    'studio.subtitle': 'Importez un document PDF pour commencer l\'analyse avec Docling',
+    'studio.recentDocs': 'Documents récents',
+
+    // Studio — workspace
+    'studio.configure': 'Configurer',
+    'studio.verify': 'Vérifier',
+    'studio.addFiles': 'Ajouter des fichiers',
+    'studio.analyzing': 'Analyse...',
+    'studio.run': 'Exécuter',
+    'studio.loaded': 'Chargé',
+    'studio.analysisRunning': 'Analyse en cours...',
+    'studio.failed': 'Échec',
+    'studio.visual': 'Visuel',
+
+    // Config panel
+    'config.model': 'Modèle',
+    'config.pages': 'Pages',
+    'config.pagesPlaceholder': 'par ex. "1-4,8"',
+    'config.extractTables': 'Extraire les tableaux',
+    'config.markdownIntegrated': 'Markdown intégré',
+    'config.extract': 'Extraire',
+    'config.images': 'Images',
+    'config.header': 'En-tête',
+    'config.footer': 'Pied de page',
+    'config.annotateImages': 'Annoter les images',
+    'config.add': 'Ajouter +',
+    'config.documents': 'Documents',
+
+    // Results
+    'results.textResult': 'Résultat du texte',
+    'results.markdown': 'Markdown',
+    'results.images': 'Images',
+    'results.pageOf': 'Page {current} sur {total}',
+    'results.noImages': 'Aucune image détectée dans ce document',
+    'results.noMarkdown': 'Pas de contenu markdown',
+    'results.runAnalysis': 'Lancez une analyse pour voir les résultats',
+    'results.analysisFailed': 'L\'analyse a échoué',
+    'results.page': 'Page',
+
+    // Upload
+    'upload.drop': 'Déposez un PDF ici ou cliquez pour importer',
+    'upload.uploading': 'Import en cours...',
+    'upload.maxSize': 'Max 50Mo',
+
+    // History
+    'history.title': 'Historique des analyses',
+    'history.empty': 'Aucune analyse. Allez dans Studio pour analyser votre premier document.',
+
+    // Settings
+    'settings.title': 'Paramètres',
+    'settings.apiUrl': 'API URL',
+    'settings.version': 'Version',
+    'settings.theme': 'Thème',
+    'settings.themeDark': 'Sombre',
+    'settings.themeLight': 'Clair',
+    'settings.language': 'Langue',
+  },
+  en: {
+    'nav.studio': 'Studio',
+    'nav.history': 'History',
+    'nav.settings': 'Settings',
+
+    'studio.title': 'Document Intelligence',
+    'studio.subtitle': 'Upload a PDF document to start analyzing with Docling',
+    'studio.recentDocs': 'Recent documents',
+
+    'studio.configure': 'Configure',
+    'studio.verify': 'Verify',
+    'studio.addFiles': 'Add files',
+    'studio.analyzing': 'Analyzing...',
+    'studio.run': 'Run',
+    'studio.loaded': 'Loaded',
+    'studio.analysisRunning': 'Analysis running...',
+    'studio.failed': 'Failed',
+    'studio.visual': 'Visual',
+
+    'config.model': 'Model',
+    'config.pages': 'Pages',
+    'config.pagesPlaceholder': 'e.g. "1-4,8"',
+    'config.extractTables': 'Extract tables',
+    'config.markdownIntegrated': 'Inline Markdown',
+    'config.extract': 'Extract',
+    'config.images': 'Images',
+    'config.header': 'Header',
+    'config.footer': 'Footer',
+    'config.annotateImages': 'Annotate images',
+    'config.add': 'Add +',
+    'config.documents': 'Documents',
+
+    'results.textResult': 'Text result',
+    'results.markdown': 'Markdown',
+    'results.images': 'Images',
+    'results.pageOf': 'Page {current} of {total}',
+    'results.noImages': 'No images detected in this document',
+    'results.noMarkdown': 'No markdown content',
+    'results.runAnalysis': 'Run an analysis to see results',
+    'results.analysisFailed': 'Analysis failed',
+    'results.page': 'Page',
+
+    'upload.drop': 'Drop a PDF here or click to upload',
+    'upload.uploading': 'Uploading...',
+    'upload.maxSize': 'Max 50MB',
+
+    'history.title': 'Analysis History',
+    'history.empty': 'No analyses yet. Go to Studio to analyze your first document.',
+
+    'settings.title': 'Settings',
+    'settings.apiUrl': 'API URL',
+    'settings.version': 'Version',
+    'settings.theme': 'Theme',
+    'settings.themeDark': 'Dark',
+    'settings.themeLight': 'Light',
+    'settings.language': 'Language',
+  }
+}
+
+export function useI18n() {
+  const settings = useSettingsStore()
+
+  function t(key, params = {}) {
+    let str = messages[settings.locale]?.[key] || messages['fr'][key] || key
+    for (const [k, v] of Object.entries(params)) {
+      str = str.replace(`{${k}}`, v)
+    }
+    return str
+  }
+
+  return { t }
+}
diff --git a/frontend/src/shared/ui/AppSidebar.vue b/frontend/src/shared/ui/AppSidebar.vue
index 59383ec..d51bef3 100644
--- a/frontend/src/shared/ui/AppSidebar.vue
+++ b/frontend/src/shared/ui/AppSidebar.vue
@@ -10,17 +10,17 @@
     <nav class="sidebar-nav">
       <RouterLink to="/" class="nav-item" :class="{ active: route.name === 'studio' }">
         <svg class="nav-icon" viewBox="0 0 20 20" fill="currentColor"><path d="M10.394 2.08a1 1 0 00-.788 0l-7 3a1 1 0 000 1.84L5.25 8.051a.999.999 0 01.356-.257l4-1.714a1 1 0 11.788 1.838l-2.727 1.17 1.94.831a1 1 0 00.787 0l7-3a1 1 0 000-1.838l-7-3zM3.31 9.397L5 10.12v4.102a8.969 8.969 0 00-1.05-.174 1 1 0 01-.89-.89 11.115 11.115 0 01.25-3.762zm5.99 7.176A9.026 9.026 0 007 15.96v-4.5l.61.26a2.5 2.5 0 001.98 0l.61-.26v4.5a9.026 9.026 0 00-1.7.613z"/></svg>
-        <span>Studio</span>
+        <span>{{ t('nav.studio') }}</span>
       </RouterLink>
 
       <RouterLink to="/history" class="nav-item" :class="{ active: route.name === 'history' }">
         <svg class="nav-icon" viewBox="0 0 20 20" fill="currentColor"><path fill-rule="evenodd" d="M10 18a8 8 0 100-16 8 8 0 000 16zm1-12a1 1 0 10-2 0v4a1 1 0 00.293.707l2.828 2.829a1 1 0 101.415-1.415L11 9.586V6z" clip-rule="evenodd"/></svg>
-        <span>History</span>
+        <span>{{ t('nav.history') }}</span>
       </RouterLink>
 
       <RouterLink to="/settings" class="nav-item" :class="{ active: route.name === 'settings' }">
         <svg class="nav-icon" viewBox="0 0 20 20" fill="currentColor"><path fill-rule="evenodd" d="M11.49 3.17c-.38-1.56-2.6-1.56-2.98 0a1.532 1.532 0 01-2.286.948c-1.372-.836-2.942.734-2.106 2.106.54.886.061 2.042-.947 2.287-1.561.379-1.561 2.6 0 2.978a1.532 1.532 0 01.947 2.287c-.836 1.372.734 2.942 2.106 2.106a1.532 1.532 0 012.287.947c.379 1.561 2.6 1.561 2.978 0a1.533 1.533 0 012.287-.947c1.372.836 2.942-.734 2.106-2.106a1.533 1.533 0 01.947-2.287c1.561-.379 1.561-2.6 0-2.978a1.532 1.532 0 01-.947-2.287c.836-1.372-.734-2.942-2.106-2.106a1.532 1.532 0 01-2.287-.947zM10 13a3 3 0 100-6 3 3 0 000 6z" clip-rule="evenodd"/></svg>
-        <span>Settings</span>
+        <span>{{ t('nav.settings') }}</span>
       </RouterLink>
     </nav>
 
@@ -32,7 +32,10 @@
 
 <script setup>
 import { RouterLink, useRoute } from 'vue-router'
+import { useI18n } from '../i18n.js'
+
 const route = useRoute()
+const { t } = useI18n()
 </script>
 
 <style scoped>