Chroma-Hash

"Chroma-Hash is a jQuery plugin that dynamically visualizes secure text-field values using ambient color bars. Password entry can be frustrating, especially with long or difficult passwords. On a webpage, secure fields obscure your input with ""¢'s, so others can't read it. Unfortunately, neither can you""�you can't tell if you got your password right until you click ""Log In"". Chroma-Hash displays a series of colored bars at the end of field inputs so you can instantly see if your password is right. Chroma-Hash takes an MD5 hash of your input and uses that to compute the colors in the visualization. The resulting color pattern is non-reversible, so no one could know what your password just from the colors."