nconv is a small tool that allows one to convert integers from one numeral system to another (minimal allowed system is 2, maximal - 16). After it receives all the data necessary (numeral system to convert from, numeral system to convert to, the integer to convert), the data is processed and the result (integer in the new numeral system) is output to stdout. This program may be useful for both general users who need to perform such kind of conversions and developers who can use nconv to save time while developing their applications.