diff --git a/.vscode/settings.json b/.vscode/settings.json
index 47a447a..6cadd54 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -2,6 +2,7 @@
     "chat.tools.terminal.autoApprove": {
         "npx vitest": true,
         "npx tsc": true,
-        "git remote": true
+        "git remote": true,
+        "npx asar": true
     }
 }
\ No newline at end of file
diff --git a/src/renderer/components/Panel/Panel.css b/src/renderer/components/Panel/Panel.css
index 9c0ba5a..2c069e2 100644
--- a/src/renderer/components/Panel/Panel.css
+++ b/src/renderer/components/Panel/Panel.css
@@ -92,6 +92,31 @@
   gap: 6px;
 }
 
+.output-content {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+}
+
+.output-toolbar {
+  display: flex;
+  justify-content: flex-end;
+}
+
+.output-copy-button {
+  font-size: 11px;
+  padding: 3px 10px;
+  background-color: var(--vscode-button-secondaryBackground);
+  color: var(--vscode-button-secondaryForeground);
+  border: 1px solid var(--vscode-panel-border);
+  border-radius: 4px;
+  cursor: pointer;
+}
+
+.output-copy-button:hover {
+  background-color: var(--vscode-list-hoverBackground);
+}
+
 .output-item {
   background-color: var(--vscode-sideBar-background);
   border-radius: 4px;
diff --git a/src/renderer/components/Panel/Panel.tsx b/src/renderer/components/Panel/Panel.tsx
index c2a105c..593fc72 100644
--- a/src/renderer/components/Panel/Panel.tsx
+++ b/src/renderer/components/Panel/Panel.tsx
@@ -250,6 +250,35 @@ export const Panel: React.FC = () => {
     });
   };
 
+  const handleCopyOutput = async () => {
+    if (panelOutputEntries.length === 0) {
+      return;
+    }
+
+    const outputText = panelOutputEntries.map((entry) => entry.message).join('\n\n');
+
+    if (typeof navigator !== 'undefined' && navigator.clipboard && typeof navigator.clipboard.writeText === 'function') {
+      await navigator.clipboard.writeText(outputText);
+      return;
+    }
+
+    if (typeof document === 'undefined' || typeof document.createElement !== 'function') {
+      return;
+    }
+
+    const textArea = document.createElement('textarea');
+    textArea.value = outputText;
+    textArea.setAttribute('readonly', '');
+    textArea.style.position = 'absolute';
+    textArea.style.left = '-9999px';
+    document.body.appendChild(textArea);
+    textArea.select();
+    if (typeof document.execCommand === 'function') {
+      document.execCommand('copy');
+    }
+    document.body.removeChild(textArea);
+  };
+
   const renderTaskRow = (task: TaskProgress, isChild = false) => (
     <div key={task.taskId} className={`task-item status-${task.status} ${isChild ? 'task-child-row' : ''}`.trim()}>
       <div className="task-status">
@@ -387,12 +416,25 @@ export const Panel: React.FC = () => {
           panelOutputEntries.length === 0 ? (
             <div className="panel-empty">{t('panel.noOutput')}</div>
           ) : (
-            <div className="output-list">
-              {panelOutputEntries.map((entry) => (
-                <div key={entry.id} className={`output-item output-${entry.kind}`}>
-                  {entry.message}
-                </div>
-              ))}
+            <div className="output-content">
+              <div className="output-toolbar">
+                <button
+                  type="button"
+                  className="output-copy-button"
+                  onClick={() => {
+                    void handleCopyOutput();
+                  }}
+                >
+                  {t('panel.copyOutput')}
+                </button>
+              </div>
+              <div className="output-list">
+                {panelOutputEntries.map((entry) => (
+                  <div key={entry.id} className={`output-item output-${entry.kind}`}>
+                    {entry.message}
+                  </div>
+                ))}
+              </div>
             </div>
           )
         )}
diff --git a/src/renderer/i18n/locales/de.json b/src/renderer/i18n/locales/de.json
index 1a2ea61..1d9a738 100644
--- a/src/renderer/i18n/locales/de.json
+++ b/src/renderer/i18n/locales/de.json
@@ -629,6 +629,7 @@
   "panel.closeTitle": "Panel schließen",
   "panel.noRecentTasks": "Keine aktuellen Aufgaben",
   "panel.noOutput": "Keine Ausgabe",
+  "panel.copyOutput": "Ausgabe kopieren",
   "panel.openPostEditor": "Öffne einen Beitragseditor, um Beitragslinks zu sehen",
   "panel.loadingPostLinks": "Beitragslinks werden geladen...",
   "panel.noPostLinks": "Keine Beitragslinks für diesen Beitrag",
diff --git a/src/renderer/i18n/locales/en.json b/src/renderer/i18n/locales/en.json
index dc743e5..7263b00 100644
--- a/src/renderer/i18n/locales/en.json
+++ b/src/renderer/i18n/locales/en.json
@@ -629,6 +629,7 @@
   "panel.closeTitle": "Close panel",
   "panel.noRecentTasks": "No recent tasks",
   "panel.noOutput": "No output",
+  "panel.copyOutput": "Copy Output",
   "panel.openPostEditor": "Open a post editor to view post links",
   "panel.loadingPostLinks": "Loading post links...",
   "panel.noPostLinks": "No post links for this post",
diff --git a/src/renderer/i18n/locales/es.json b/src/renderer/i18n/locales/es.json
index 17b2b5a..eaccd78 100644
--- a/src/renderer/i18n/locales/es.json
+++ b/src/renderer/i18n/locales/es.json
@@ -629,6 +629,7 @@
   "panel.closeTitle": "Cerrar panel",
   "panel.noRecentTasks": "No hay tareas recientes",
   "panel.noOutput": "Sin salida",
+  "panel.copyOutput": "Copiar salida",
   "panel.openPostEditor": "Abre un editor de entradas para ver los enlaces",
   "panel.loadingPostLinks": "Cargando enlaces de entradas...",
   "panel.noPostLinks": "No hay enlaces para esta entrada",
diff --git a/src/renderer/i18n/locales/fr.json b/src/renderer/i18n/locales/fr.json
index cf421fd..6201684 100644
--- a/src/renderer/i18n/locales/fr.json
+++ b/src/renderer/i18n/locales/fr.json
@@ -629,6 +629,7 @@
   "panel.closeTitle": "Fermer le panneau",
   "panel.noRecentTasks": "Aucune tâche récente",
   "panel.noOutput": "Aucune sortie",
+  "panel.copyOutput": "Copier la sortie",
   "panel.openPostEditor": "Ouvrez un éditeur d'article pour voir les liens",
   "panel.loadingPostLinks": "Chargement des liens d'articles...",
   "panel.noPostLinks": "Aucun lien pour cet article",
diff --git a/src/renderer/i18n/locales/it.json b/src/renderer/i18n/locales/it.json
index 6894fb8..021a194 100644
--- a/src/renderer/i18n/locales/it.json
+++ b/src/renderer/i18n/locales/it.json
@@ -629,6 +629,7 @@
   "panel.closeTitle": "Chiudi pannello",
   "panel.noRecentTasks": "Nessuna attività recente",
   "panel.noOutput": "Nessun output",
+  "panel.copyOutput": "Copia output",
   "panel.openPostEditor": "Apri un editor post per visualizzare i collegamenti",
   "panel.loadingPostLinks": "Caricamento collegamenti post...",
   "panel.noPostLinks": "Nessun collegamento per questo post",
diff --git a/src/renderer/python/pyodideAssetUrl.ts b/src/renderer/python/pyodideAssetUrl.ts
new file mode 100644
index 0000000..5b243e5
--- /dev/null
+++ b/src/renderer/python/pyodideAssetUrl.ts
@@ -0,0 +1,3 @@
+export function resolvePyodideIndexURL(workerModuleUrl: string): string {
+  return new URL('../../../node_modules/pyodide/', workerModuleUrl).toString();
+}
diff --git a/src/renderer/python/pythonRuntime.worker.ts b/src/renderer/python/pythonRuntime.worker.ts
index 8582524..6ff43e6 100644
--- a/src/renderer/python/pythonRuntime.worker.ts
+++ b/src/renderer/python/pythonRuntime.worker.ts
@@ -1,6 +1,7 @@
 import { loadPyodide, type PyodideInterface } from 'pyodide';
 import type { PythonWorkerMessage, PythonWorkerRequest } from './runtimeProtocol';
 import { parseMacroContextV1, parseMacroResultV1 } from './abiV1';
+import { resolvePyodideIndexURL } from './pyodideAssetUrl';
 
 let runtime: PyodideInterface | null = null;
 let activeRequestId: string | null = null;
@@ -183,6 +184,7 @@ json.dumps(__bds_entrypoints)
 async function bootstrapRuntime(): Promise<void> {
   try {
     runtime = await loadPyodide({
+      indexURL: resolvePyodideIndexURL(import.meta.url),
       stdout: (chunk) => {
         if (!activeRequestId) {
           return;
diff --git a/tests/renderer/components/Panel.test.tsx b/tests/renderer/components/Panel.test.tsx
index 87b5e2e..ee1187a 100644
--- a/tests/renderer/components/Panel.test.tsx
+++ b/tests/renderer/components/Panel.test.tsx
@@ -253,6 +253,40 @@ describe('Panel', () => {
     expect(screen.getByText('hello from script')).toBeInTheDocument();
   });
 
+  it('copies output entries from output tab with copy button', async () => {
+    const writeText = vi.fn().mockResolvedValue(undefined);
+    Object.defineProperty(globalThis, 'navigator', {
+      value: { clipboard: { writeText } },
+      configurable: true,
+    });
+
+    useAppStore.setState({
+      panelActiveTab: 'output',
+      panelOutputEntries: [
+        {
+          id: 'output-1',
+          message: 'pyodide.asm.js missing',
+          createdAt: '2026-02-22T00:00:00.000Z',
+          kind: 'error',
+        },
+        {
+          id: 'output-2',
+          message: 'second line',
+          createdAt: '2026-02-22T00:00:01.000Z',
+          kind: 'stdout',
+        },
+      ],
+    });
+
+    render(<Panel />);
+
+    fireEvent.click(screen.getByRole('button', { name: 'Copy Output' }));
+
+    await vi.waitFor(() => {
+      expect(writeText).toHaveBeenCalledWith('pyodide.asm.js missing\n\nsecond line');
+    });
+  });
+
   it('renders grouped tasks as expandable parent rows with child task names in tasks tab', async () => {
     useAppStore.setState({
       tasks: [
diff --git a/tests/renderer/python/pyodideAssetUrl.test.ts b/tests/renderer/python/pyodideAssetUrl.test.ts
new file mode 100644
index 0000000..3fc99f1
--- /dev/null
+++ b/tests/renderer/python/pyodideAssetUrl.test.ts
@@ -0,0 +1,16 @@
+import { describe, expect, it } from 'vitest';
+import { resolvePyodideIndexURL } from '../../../src/renderer/python/pyodideAssetUrl';
+
+describe('resolvePyodideIndexURL', () => {
+  it('resolves to packaged node_modules path for dist worker urls', () => {
+    const workerUrl = 'file:///Applications/bDS.app/Contents/Resources/app.asar/dist/renderer/assets/pythonRuntime.worker-abc123.js';
+    expect(resolvePyodideIndexURL(workerUrl)).toBe(
+      'file:///Applications/bDS.app/Contents/Resources/app.asar/node_modules/pyodide/'
+    );
+  });
+
+  it('resolves to vite node_modules path for dev worker urls', () => {
+    const workerUrl = 'http://localhost:5173/src/renderer/python/pythonRuntime.worker.ts';
+    expect(resolvePyodideIndexURL(workerUrl)).toBe('http://localhost:5173/node_modules/pyodide/');
+  });
+});