diff --git a/scripts/size-report.js b/scripts/size-report.js
new file mode 100644
index 0000000..246eaba
--- /dev/null
+++ b/scripts/size-report.js
@@ -0,0 +1,35 @@
+const fs = require("node:fs");
+const path = require("node:path");
+const { brotliCompressSync, gzipSync } = require("node:zlib");
+
+const distDirectory = path.resolve(process.cwd(), "dist");
+
+function getFiles(directory) {
+  return fs.readdirSync(directory, { withFileTypes: true }).flatMap((entry) => {
+    const entryPath = path.join(directory, entry.name);
+    return entry.isDirectory() ? getFiles(entryPath) : [entryPath];
+  });
+}
+
+function toKilobytes(bytes) {
+  return `${(bytes / 1000).toFixed(2)} kB`;
+}
+
+if (!fs.existsSync(distDirectory)) {
+  console.error("dist/ nicht gefunden. Bitte zuerst npm run build ausführen.");
+  process.exit(1);
+}
+
+const rows = getFiles(distDirectory)
+  .sort()
+  .map((filePath) => {
+    const contents = fs.readFileSync(filePath);
+    return {
+      Datei: path.relative(distDirectory, filePath),
+      Unkomprimiert: toKilobytes(contents.length),
+      GZip: toKilobytes(gzipSync(contents).length),
+      Brotli: toKilobytes(brotliCompressSync(contents).length),
+    };
+  });
+
+console.table(rows);
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