MD5 Rainbow Tables

A few assorted MD5 brute-forcing tools:
MD5 Hash: generates an md5 digest from ASCII string.
MD5 Rainbow: generates an md5 "rainbow table".
MD5 Lookup: uses an md5 "rainbow table" to reverse lookup a string from its hash.

http://www.box.net/public/u78qrma13j

MD5Rainbow asks for a string length and a character set, for example, to generate a rainbow table for 4-letter lowercase strings:

MD5 Rainbow Generator
Length of string: 4
Character set: abcdefghijklmnopqrstuvwxyz