diff --git a/inc/util.h b/inc/util.h
index 9cb0f1b..7a32667 100644
--- a/inc/util.h
+++ b/inc/util.h
@@ -32,6 +32,7 @@ bool trimOnce(std::string& str, char c = ' ');
 std::string bytesToBase16(char* buffer, unsigned int len);
 std::string bytesToBase64(char* buffer, unsigned int len);
 
+bool replace(std::string& modify, const std::string& search, char replace);
 
 class StringSpliterator : public std::iterator<std::output_iterator_tag, std::string> {
 public:
diff --git a/src/util.cpp b/src/util.cpp
index a0a1393..5e4445b 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -183,6 +183,19 @@ std::string mrbesen::util::bytesToBase64(char* buffer, unsigned int len) {
 	return ret;
 }
 
+bool mrbesen::util::replace(std::string& modify, const std::string& search, char replace) {
+	bool changed = false;
+	for(size_t pos = modify.find_first_of(search); pos < std::string::npos; ) {
+		modify[pos] = replace;
+		changed = true;
+
+		//search next
+		pos = modify.find_first_of(search, pos+1);
+	}
+
+	return changed;
+}
+
 
 mrbesen::util::StringSpliterator::StringSpliterator(const std::string& d, const std::string& token) : data(d), token(token) {
 	//trim
diff --git a/tests/main.cpp b/tests/main.cpp
index 86de8e9..7a80cec 100644
--- a/tests/main.cpp
+++ b/tests/main.cpp
@@ -17,6 +17,7 @@ int testUtil_insertStart_End();
 int testUtil_trim();
 int testUtil_trimOnce();
 int testUtil_base();
+int testUtil_replace();
 
 int testStringSpliterator();
 int testUtilSplit();
@@ -24,7 +25,7 @@ int testUtilSplit();
 int testGetDoy();
 
 test_t tests[] = {testFiles_parent, testFiles_file, testFiles_extention, testFiles_scan, testFiles_readFile,
-	testUtil_Count, testUtil_equalsIgnoreCase, testUtil_toLower, testUtil_start_endWith, testUtil_removeStart_End, testUtil_insertStart_End, testUtil_trim, testUtil_trimOnce, testUtil_base,
+	testUtil_Count, testUtil_equalsIgnoreCase, testUtil_toLower, testUtil_start_endWith, testUtil_removeStart_End, testUtil_insertStart_End, testUtil_trim, testUtil_trimOnce, testUtil_base, testUtil_replace,
 	testStringSpliterator, testUtilSplit,
 	testGetDoy,
 	NULL};
diff --git a/tests/utilstest.cpp b/tests/utilstest.cpp
index 6d475ab..7914398 100644
--- a/tests/utilstest.cpp
+++ b/tests/utilstest.cpp
@@ -222,5 +222,20 @@ int testUtil_base() {
 	ret = bytesToBase64(buf, 6);
 	ASSERT(ret == "AKsSzTT_", ret);
 
+	return TESTGOOD;
+}
+
+int testUtil_replace() {
+	std::string test = "#abc#def#";
+
+	ASSERT(!replace(test, "", ' '), "");
+	ASSERT(test == "#abc#def#", test);
+	ASSERT(!replace(test, "xyz", ' '), "");
+	ASSERT(test == "#abc#def#", test);
+	ASSERT(replace(test, "af", ' '), "");
+	ASSERT(test == "# bc#de #", test);
+	ASSERT(replace(test, "#q ", ' '), "");
+	ASSERT(test == "  bc de  ", test);
+
 	return TESTGOOD;
 }
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