diff --git a/source/common/utils.cpp b/source/common/utils.cpp
index df6a3dd..1b2309f 100644
--- a/source/common/utils.cpp
+++ b/source/common/utils.cpp
@@ -367,7 +367,6 @@ bool checkCollision(SDL_Point &p, d_line_t &l)
 
     // En caso contrario, el punto está en la linea
     return true;
-    
 
     /*const int m = (l.y2 - l.y1) / (l.x2 - l.x1);
     const int c = 0;
@@ -575,4 +574,20 @@ std::string boolToString(bool value)
     {
         return "false";
     }
+}
+
+// Convierte una cadena a minusculas
+std::string toLower(std::string str)
+{
+    char *original = str.c_str();
+    char *lower = (char *)malloc(str.size() + 1);
+    for (int i = 0; i < str.size(); ++i)
+    {
+        char c = original[i];
+        lower[i] = (c >= 65 || c <= 90) ? c + 32 : c;
+    }
+    lower[str.size()] = 0;
+    std::string nova(lower);
+    free(lower);
+    return nova;
 }
\ No newline at end of file
diff --git a/source/common/utils.h b/source/common/utils.h
index f4172e8..9e42760 100644
--- a/source/common/utils.h
+++ b/source/common/utils.h
@@ -200,4 +200,7 @@ bool stringToBool(std::string str);
 // Convierte un valor booleano en una cadena
 std::string boolToString(bool value);
 
+// Convierte una cadena a minusculas
+std::string toLower(std::string str);
+
 #endif
\ No newline at end of file