This software offers a solution to users who want to convert one or more decimal, hexadecimal, binary or octal numbers. The user can choose to add numbers or load them from a file. A drop down menu allows the user to choose to convert numbers from any one of the formats above into any one of the other types. After starting the conversion, the original number, the conversion type (e.g. decimal to hexadecimal) and the results are displayed in a list which can be saved to a text or Excel file or to the clipboard for pasting.