diff --git a/code/components/jomjol_helper/Helper.h b/code/components/jomjol_helper/Helper.h
index e81d2fbd..6403fea8 100644
--- a/code/components/jomjol_helper/Helper.h
+++ b/code/components/jomjol_helper/Helper.h
@@ -21,7 +21,6 @@ bool RenameFile(string from, string to);
 bool MakeDir(std::string _what);
 bool FileExists(string filename);
 
-
 string RundeOutput(double _in, int _anzNachkomma);
 
 size_t findDelimiterPos(string input, string delimiter);
@@ -33,7 +32,6 @@ string getFileType(string filename);
 string getFileFullFileName(string filename);
 string getDirectory(string filename);
 
-
 int mkdir_r(const char *dir, const mode_t mode);
 int removeFolder(const char* folderPath, const char* logTag);
 
@@ -68,7 +66,6 @@ string getSDCardSectorSize();
 
 string getMac(void);
 
-
 /* Error bit fields
    One bit per error
    Make sure it matches https://jomjol.github.io/AI-on-the-edge-device-docs/Error-Codes */
@@ -103,4 +100,13 @@ bool replaceString(std::string& s, std::string const& toReplace, std::string con
 bool replaceString(std::string& s, std::string const& toReplace, std::string const& replaceWith, bool logIt);
 bool isInString(std::string& s, std::string const& toFind);
 
+bool isStringNumeric(std::string &input);
+bool isStringAlphabetic(std::string &input);
+bool isStringAlphanumeric(std::string &input);
+bool alphanumericToBoolean(std::string &input);
+
+int clipInt(int input, int high, int low);
+bool numericStrToBool(std::string input);
+bool stringToBoolean(std::string input);
+
 #endif //HELPER_H