IPv4 addresses can sometimes be written in different forms. For explanations and more details, click here.
Reverse Unicode Normalizer
Web applications may sometimes normalize Unicode strings at some point. It may be possible to get an evil string through a filter if normalization happens after filtering.
This is a reverse Unicode normalizer. For each of the four algorithms, it will give you another string that normalizes to the string you entered, provided that it can find one where all characters are different. Good to know: the Kelvin sign “K” normalizes to “K” for all algorithms.