Cryptii is an Open Source web application designed and coded with <3 and brought to you by ffraenz under the mit license.
It allows convert, encode decode content between different format systems (text, decimal, flipped, html entities, morsecode, leetspeak, navajo code, binary, octal, hexadecimal, roman etc.).
This happens fully in your browser using javascript, no will be sent any kind of server.
Source code can forked on Github.