diff --git a/server/templates/my_cases.html b/server/templates/my_cases.html
index 663e7dd..8166ea9 100644
--- a/server/templates/my_cases.html
+++ b/server/templates/my_cases.html
@@ -85,6 +85,7 @@ section h2 { font-size: 1.1em; color: #555; border-bottom: 1px solid #ddd; paddi
 {% endfor %}
 <div class="bulk-bar">
 <span>Auswahl:</span>
+<button type="button" onclick="const b=document.querySelectorAll('input[name=case_id]');const all=Array.from(b).every(c=>c.checked);b.forEach(c=>c.checked=!all);this.textContent=all?'Alles auswählen':'Keine auswählen'">Alles auswählen</button>
 <button type="submit" name="action" value="analyze">Analysieren</button>
 {% if is_admin %}<button type="submit" name="action" value="reset">Reset</button>{% endif %}
 <button type="submit" name="action" value="delete">Entfernen</button>