Click green flag. Press space. Type the number you want in the base other than 10. Enter. Type the base it is in. Enter.
This converter only works to base 10, working on one that can do from base 10. This works with hexadecimal and other bases that use letters, but no negatives, please. This project features a timeout, which in my *totally unbiased* opinion should be in every project to catch the mistakes you haven't found.(but that's just me)