diff --git a/src/js/calculator.js b/src/js/calculator.js
index 7b8f71e..b2f2f5b 100644
--- a/src/js/calculator.js
+++ b/src/js/calculator.js
@@ -69,7 +69,7 @@ const Calculator = {
 
     const widgetId = WidgetManager.create('calculator', {
       id: this.WIDGET_ID,
-      title: 'Taschenrechner',
+      title: t('calculator.title'),
       x: saved.x || 400,
       y: saved.y || 120,
       width: saved.width || 280,
@@ -214,7 +214,7 @@ const Calculator = {
 
     const title = document.createElement('div');
     title.className = 'calc-history-title';
-    title.textContent = 'History';
+    title.textContent = t('calculator.history');
     container.appendChild(title);
 
     this._renderHistoryItems(container);
@@ -345,7 +345,7 @@ const Calculator = {
 
     const result = this._evaluate(this._currentExpr);
     if (result === null) {
-      this._lastResult = 'Fehler';
+      this._lastResult = t('calculator.error');
       this._updateDisplay();
       return;
     }
diff --git a/src/js/image-ref.js b/src/js/image-ref.js
index 2a1f230..93a2211 100644
--- a/src/js/image-ref.js
+++ b/src/js/image-ref.js
@@ -114,8 +114,8 @@ const ImageRef = {
     } catch (e) {
       console.warn('ImageRef: sessionStorage Write fehlgeschlagen', e);
       HellionDialog.alert(
-        'Bild konnte nicht gespeichert werden. Der Browser-Speicher ist voll.',
-        { type: 'danger', title: 'Speicherfehler' }
+        t('imageref.storage_error'),
+        { type: 'danger', title: t('imageref.storage_error.title') }
       );
     }
   },
@@ -144,8 +144,8 @@ const ImageRef = {
 
     if (this._images.length >= this.MAX_IMAGES) {
       await HellionDialog.alert(
-        'Maximal ' + this.MAX_IMAGES + ' Bild-Widgets gleichzeitig. Schliesse eines um ein neues zu oeffnen.',
-        { type: 'warning', title: 'Limit erreicht' }
+        t('imageref.limit', { max: this.MAX_IMAGES }),
+        { type: 'warning', title: t('imageref.limit.title') }
       );
       return;
     }
@@ -172,8 +172,8 @@ const ImageRef = {
       dataUrl = await this._processFile(file);
     } catch (err) {
       await HellionDialog.alert(
-        'Bild konnte nicht geladen werden: ' + err.message,
-        { type: 'danger', title: 'Bildfehler' }
+        t('imageref.load_error', { error: err.message }),
+        { type: 'danger', title: t('imageref.load_error.title') }
       );
       return;
     }
@@ -206,7 +206,7 @@ const ImageRef = {
   _createWidget(imageData, dataUrl) {
     WidgetManager.create('image', {
       id: imageData.id,
-      title: imageData.label || 'Bild-Referenz',
+      title: imageData.label || t('imageref.title'),
       x: imageData.x,
       y: imageData.y,
       width: imageData.width,
@@ -249,14 +249,14 @@ const ImageRef = {
       const img = document.createElement('img');
       img.className = 'imgref-img';
       img.src = dataUrl;
-      img.alt = imageData.label || 'Bild-Referenz';
+      img.alt = imageData.label || t('imageref.title');
       wrapper.appendChild(img);
 
       // Bild ersetzen Button
       const replaceBtn = document.createElement('button');
       replaceBtn.className = 'imgref-replace-btn';
       replaceBtn.type = 'button';
-      replaceBtn.textContent = 'Bild ersetzen';
+      replaceBtn.textContent = t('imageref.replace');
       replaceBtn.addEventListener('click', async () => {
         const file = await this._pickFile();
         if (!file) return;
@@ -266,8 +266,8 @@ const ImageRef = {
           this.renderBody(imageData, bodyEl, newDataUrl);
         } catch (err) {
           await HellionDialog.alert(
-            'Bild konnte nicht geladen werden: ' + err.message,
-            { type: 'danger', title: 'Bildfehler' }
+            t('imageref.load_error', { error: err.message }),
+            { type: 'danger', title: t('imageref.load_error.title') }
           );
         }
       });
@@ -283,7 +283,7 @@ const ImageRef = {
     const label = document.createElement('input');
     label.className = 'imgref-label';
     label.type = 'text';
-    label.placeholder = 'Beschriftung (optional)';
+    label.placeholder = t('imageref.label_placeholder');
     label.maxLength = 100;
     label.value = imageData.label || '';
 
@@ -295,8 +295,8 @@ const ImageRef = {
       const entry = WidgetManager._widgets.get(imageData.id);
       if (entry) {
         const titleEl = entry.el.querySelector('.widget-title-text');
-        if (titleEl) titleEl.textContent = text || 'Bild-Referenz';
-        entry.state.title = text || 'Bild-Referenz';
+        if (titleEl) titleEl.textContent = text || t('imageref.title');
+        entry.state.title = text || t('imageref.title');
       }
 
       this._debouncedSave();
@@ -321,7 +321,7 @@ const ImageRef = {
     icon.textContent = '\uD83D\uDDBC\uFE0F';
 
     const text = document.createElement('span');
-    text.textContent = 'Klicken oder Bild hierher ziehen';
+    text.textContent = t('imageref.dropzone');
 
     dropzone.append(icon, text);
 
@@ -336,8 +336,8 @@ const ImageRef = {
         await this.save();
       } catch (err) {
         await HellionDialog.alert(
-          'Bild konnte nicht geladen werden: ' + err.message,
-          { type: 'danger', title: 'Bildfehler' }
+          t('imageref.load_error', { error: err.message }),
+          { type: 'danger', title: t('imageref.load_error.title') }
         );
       }
     });
@@ -363,8 +363,8 @@ const ImageRef = {
       const file = e.dataTransfer.files[0];
       if (!file || !file.type.startsWith('image/')) {
         await HellionDialog.alert(
-          'Bitte eine Bilddatei verwenden (PNG, JPG, WebP, etc.).',
-          { type: 'warning', title: 'Kein Bild' }
+          t('imageref.invalid_file'),
+          { type: 'warning', title: t('imageref.invalid_file.title') }
         );
         return;
       }
@@ -376,8 +376,8 @@ const ImageRef = {
         await this.save();
       } catch (err) {
         await HellionDialog.alert(
-          'Bild konnte nicht geladen werden: ' + err.message,
-          { type: 'danger', title: 'Bildfehler' }
+          t('imageref.load_error', { error: err.message }),
+          { type: 'danger', title: t('imageref.load_error.title') }
         );
       }
     });
@@ -433,7 +433,7 @@ const ImageRef = {
 
       img.onerror = () => {
         URL.revokeObjectURL(objectUrl);
-        reject(new Error('Bild konnte nicht geladen werden'));
+        reject(new Error(t('imageref.load_error', { error: 'unknown' })));
       };
 
       img.src = objectUrl;
diff --git a/src/js/timer.js b/src/js/timer.js
index 664ba73..34ab404 100644
--- a/src/js/timer.js
+++ b/src/js/timer.js
@@ -82,7 +82,7 @@ const Timer = {
 
     WidgetManager.create('timer', {
       id: this.WIDGET_ID,
-      title: 'Timer',
+      title: t('timer.title'),
       x: saved.x || 600,
       y: saved.y || 80,
       width: saved.width || 260,
@@ -190,7 +190,7 @@ const Timer = {
     const btnStart = document.createElement('button');
     btnStart.className = 'timer-ctrl-btn primary';
     btnStart.type = 'button';
-    btnStart.textContent = 'Start';
+    btnStart.textContent = t('timer.start');
     btnStart.addEventListener('click', () => {
       if (!this._running && this._remaining === 0) {
         this._applyInput();
@@ -202,7 +202,7 @@ const Timer = {
     const btnPause = document.createElement('button');
     btnPause.className = 'timer-ctrl-btn';
     btnPause.type = 'button';
-    btnPause.textContent = 'Pause';
+    btnPause.textContent = t('timer.pause');
     btnPause.disabled = true;
     btnPause.addEventListener('click', () => this._pause());
     this._btnPause = btnPause;
@@ -210,7 +210,7 @@ const Timer = {
     const btnReset = document.createElement('button');
     btnReset.className = 'timer-ctrl-btn danger';
     btnReset.type = 'button';
-    btnReset.textContent = 'Reset';
+    btnReset.textContent = t('timer.reset');
     btnReset.addEventListener('click', () => this._reset());
     this._btnReset = btnReset;
 
@@ -253,13 +253,13 @@ const Timer = {
 
     const title = document.createElement('span');
     title.className = 'timer-presets-title';
-    title.textContent = 'Presets';
+    title.textContent = t('timer.presets');
 
     const addBtn = document.createElement('button');
     addBtn.className = 'timer-preset-add';
     addBtn.type = 'button';
     addBtn.textContent = '+';
-    addBtn.title = 'Preset speichern';
+    addBtn.title = t('timer.save_preset');
     addBtn.addEventListener('click', () => this._showAddPreset(container));
 
     header.append(title, addBtn);
@@ -322,8 +322,8 @@ const Timer = {
 
     if (this._presets.length >= this.MAX_PRESETS) {
       HellionDialog.alert(
-        'Maximale Anzahl erreicht! Du kannst maximal ' + this.MAX_PRESETS + ' Presets speichern.',
-        { type: 'warning', title: 'Limit erreicht' }
+        t('timer.limit_message', { max: this.MAX_PRESETS }),
+        { type: 'warning', title: t('timer.limit_title') }
       );
       return;
     }
@@ -334,8 +334,8 @@ const Timer = {
       const parsed = this._parseTimeInput(this._inputEl.value);
       if (parsed === 0) {
         HellionDialog.alert(
-          'Gib zuerst eine Zeit ein, bevor du ein Preset speicherst.',
-          { type: 'info', title: 'Keine Zeit' }
+          t('timer.no_time_message'),
+          { type: 'info', title: t('timer.no_time_title') }
         );
         return;
       }
@@ -347,13 +347,13 @@ const Timer = {
     const nameInput = document.createElement('input');
     nameInput.className = 'timer-add-input';
     nameInput.type = 'text';
-    nameInput.placeholder = 'Name...';
+    nameInput.placeholder = t('timer.preset_name_placeholder');
     nameInput.maxLength = 20;
 
     const confirmBtn = document.createElement('button');
     confirmBtn.className = 'timer-add-confirm';
     confirmBtn.type = 'button';
-    confirmBtn.textContent = 'OK';
+    confirmBtn.textContent = t('timer.ok');
 
     const doAdd = async () => {
       const name = nameInput.value.trim();
@@ -508,9 +508,9 @@ const Timer = {
   _startTitleBlink() {
     this._originalTitle = document.title;
     this._blinkIntervalId = setInterval(() => {
-      document.title = document.title === '[!] Timer abgelaufen'
+      document.title = document.title === t('timer.finished_title')
         ? this._originalTitle
-        : '[!] Timer abgelaufen';
+        : t('timer.finished_title');
     }, 1000);
   },
 
@@ -521,7 +521,7 @@ const Timer = {
     if (this._blinkIntervalId) {
       clearInterval(this._blinkIntervalId);
       this._blinkIntervalId = null;
-      document.title = this._originalTitle || 'Hellion Dashboard';
+      document.title = this._originalTitle || t('timer.default_page_title');
     }
     this._finished = false;
     this._updateDisplay();
@@ -534,7 +534,7 @@ const Timer = {
   _updateMuteBtn() {
     if (!this._muteBtn) return;
     this._muteBtn.textContent = this._muted ? '\uD83D\uDD07' : '\uD83D\uDD0A';
-    this._muteBtn.title = this._muted ? 'Ton einschalten' : 'Ton ausschalten';
+    this._muteBtn.title = this._muted ? t('timer.unmute') : t('timer.mute');
     this._muteBtn.classList.toggle('muted', this._muted);
   },
 
@@ -555,7 +555,7 @@ const Timer = {
   _updateControls() {
     if (this._btnStart) {
       this._btnStart.disabled = this._running;
-      this._btnStart.textContent = this._finished ? 'Neustart' : 'Start';
+      this._btnStart.textContent = this._finished ? t('timer.restart') : t('timer.start');
     }
     if (this._btnPause) {
       this._btnPause.disabled = !this._running;