diff --git a/src/utils.ts b/src/utils.ts
new file mode 100644
index 0000000..a8c305e
--- /dev/null
+++ b/src/utils.ts
@@ -0,0 +1,15 @@
+export function matchesRegex(line: string, regex: string) {
+  if (!regex) return true;
+  try {
+    return new RegExp(regex, "i").test(line);
+  } catch {
+    return true;
+  }
+}
+
+export function highlight(line: string) {
+  return line
+    .replace(/error/gi, "🔴 ERROR")
+    .replace(/warn/gi, "🟡 WARN")
+    .replace(/info/gi, "🔵 INFO");
+}
\ No newline at end of file