diff --git a/Src/Util/Format.cpp b/Src/Util/Format.cpp
index f7114d8..d2566a9 100644
--- a/Src/Util/Format.cpp
+++ b/Src/Util/Format.cpp
@@ -1,8 +1,16 @@
 #include "Util/Format.h"
+#include <algorithm>
 #include <cctype>
 
 namespace Util
 {
+  std::string ToLower(const std::string &str)
+  {
+    std::string tmp(str);
+    std::transform(tmp.begin(), tmp.end(), tmp.begin(), ::tolower);
+    return tmp;
+  }
+
   std::string TrimWhiteSpace(const std::string &str)
   {
     if (str.empty())
diff --git a/Src/Util/Format.h b/Src/Util/Format.h
index f10d02d..7a680f6 100644
--- a/Src/Util/Format.h
+++ b/Src/Util/Format.h
@@ -76,6 +76,8 @@ namespace Util
     {
     }
   private:
+    //TODO: write own buffer implementation to more easily support ToLower() et
+    //      al as methods of Util::Format
     std::stringstream m_stream;
       
     void clear()
@@ -84,6 +86,7 @@ namespace Util
     }
   };
   
+  std::string ToLower(const std::string &str);
   std::string TrimWhiteSpace(const std::string &str);
   std::string Hex(uint32_t n, size_t num_digits);
   std::string Hex(uint32_t n);