diff --git a/es-core/src/utils/StringUtil.cpp b/es-core/src/utils/StringUtil.cpp
index 54e2b18f2..fd70dfaa7 100644
--- a/es-core/src/utils/StringUtil.cpp
+++ b/es-core/src/utils/StringUtil.cpp
@@ -1,6 +1,7 @@
 #include "utils/StringUtil.h"
 
 #include <algorithm>
+#include <stdarg.h>
 
 namespace Utils
 {
@@ -134,6 +135,17 @@ namespace Utils
 
 		} // moveCursor
 
+		std::string toLower(const std::string& _string)
+		{
+			std::string string;
+
+			for(size_t i = 0; i < _string.length(); ++i)
+				string += (char)tolower(_string[i]);
+
+			return string;
+
+		} // toLower
+
 		std::string toUpper(const std::string& _string)
 		{
 			std::string string;
@@ -243,6 +255,31 @@ namespace Utils
 
 		} // vectorToCommaString
 
+		std::string format(const char* _format, ...)
+		{
+			va_list	args;
+			va_list copy;
+
+			va_start(args, _format);
+
+			va_copy(copy, args);
+			const int length = vsnprintf(nullptr, 0, _format, copy);
+			va_end(copy);
+
+			char* buffer = new char[length + 1];
+			va_copy(copy, args);
+			vsnprintf(buffer, length + 1, _format, copy);
+			va_end(copy);
+
+			va_end(args);
+
+			std::string out(buffer);
+			delete buffer;
+
+			return out;
+
+		} // format
+
 	} // String::
 
 } // Utils::
diff --git a/es-core/src/utils/StringUtil.h b/es-core/src/utils/StringUtil.h
index 47fb7d1fe..47bba35ac 100644
--- a/es-core/src/utils/StringUtil.h
+++ b/es-core/src/utils/StringUtil.h
@@ -16,6 +16,7 @@ namespace Utils
 		size_t       nextCursor         (const std::string& _string, const size_t _cursor);
 		size_t       prevCursor         (const std::string& _string, const size_t _cursor);
 		size_t       moveCursor         (const std::string& _string, const size_t _cursor, const int _amount);
+		std::string  toLower            (const std::string& _string);
 		std::string  toUpper            (const std::string& _string);
 		std::string  trim               (const std::string& _string);
 		std::string  replace            (const std::string& _string, const std::string& _replace, const std::string& _with);
@@ -24,6 +25,7 @@ namespace Utils
 		std::string  removeParenthesis  (const std::string& _string);
 		stringVector commaStringToVector(const std::string& _string);
 		std::string  vectorToCommaString(stringVector _vector);
+		std::string  format             (const char* _string, ...);
 
 	} // String::