Zecon is a converter tool for base 10 (decimal) and base 12 (duodecimal or dozenal) numbers.

It accepts digits, fractional point and the minus sign for negative values. For dozenal value, digits representing 10 can be a, A, t or T and for 11 b, B, e or E.

There is an option to select notation and a virtual numpad for mouse-only use.