diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..94d7e2f
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,35 @@
+{
+  "name": "BMI-Web-App",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "node_modules/@popperjs/core": {
+      "version": "2.11.8",
+      "resolved": "https://registry.npmjs.org/@popperjs/core/-/core-2.11.8.tgz",
+      "integrity": "sha512-P1st0aksCrn9sGZhp8GMYwBnQsbvAWsZAX44oXNNvLHGqAOcoVxmjZiohstwQ7SqKnbR47akdNi+uleWD8+g6A==",
+      "peer": true,
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/popperjs"
+      }
+    },
+    "node_modules/bootstrap": {
+      "version": "5.3.8",
+      "resolved": "https://registry.npmjs.org/bootstrap/-/bootstrap-5.3.8.tgz",
+      "integrity": "sha512-HP1SZDqaLDPwsNiqRqi5NcP0SSXciX2s9E+RyqJIIqGo+vJeN5AJVM98CXmW/Wux0nQ5L7jeWUdplCEf0Ee+tg==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/twbs"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/bootstrap"
+        }
+      ],
+      "peerDependencies": {
+        "@popperjs/core": "^2.11.8"
+      }
+    }
+  }
+}
diff --git a/src/tables/tables.js b/src/tables/tables.js
index 2eab32d..254d0a8 100644
--- a/src/tables/tables.js
+++ b/src/tables/tables.js
@@ -9,13 +9,9 @@
   }
   window.__tablesLoaded = true;
 
+  const STORAGE_KEY = "bmiData";
   let bmiList = [];
 
-  function resolveUrl(relativeToThisScript) {
-    const base = document.currentScript?.src || window.location.href;
-    return new URL(relativeToThisScript, base).toString();
-  }
-
   function calculateBMI(weight, height) {
     const w = Number(weight);
     const hCm = Number(height);
@@ -35,6 +31,19 @@
     return "Adipositas";
   }
 
+  function loadFromStorage() {
+    const data = localStorage.getItem(STORAGE_KEY);
+    try {
+      return data ? JSON.parse(data) : [];
+    } catch {
+      return [];
+    }
+  }
+
+  function saveToStorage() {
+    localStorage.setItem(STORAGE_KEY, JSON.stringify(bmiList));
+  }
+
   function buildTable(filterSelect, sortSelect, tableBody) {
     let list = [...bmiList];
     const now = new Date();
@@ -89,6 +98,7 @@
 
       tr.querySelector("button")?.addEventListener("click", () => {
         bmiList.splice(index, 1);
+        saveToStorage(); // neu speichern
         buildTable(filterSelect, sortSelect, tableBody);
       });
 
@@ -124,15 +134,11 @@
     // Prefer stable root path if you serve /src as web root:
     // fetch("/data/mock.json")
     // Otherwise keep script-relative:
-    const jsonUrl = resolveUrl("../data/mock.json");
+    // const jsonUrl = resolveUrl("../data/mock.json");
 
-    fetch(jsonUrl, { cache: "no-store" })
-      .then((res) => res.json())
-      .then((data) => {
-        bmiList = data?.tables?.bmiEntries || [];
-        buildTable(filterSelect, sortSelect, tableBody);
-      })
-      .catch((err) => console.error("Fehler beim Laden der JSON:", err));
+    // Daten jetzt aus LocalStorage laden statt aus mock.json
+    bmiList = loadFromStorage();
+    buildTable(filterSelect, sortSelect, tableBody);
   }
 
   // Export global, so the router can call it after injecting the view
@@ -144,4 +150,4 @@
   } else {
     tablesInit();
   }
-})();
+})();
\ No newline at end of file