This site allows you to encrypt or decrypt any md5 hash, we have our own database with more than 10 million keys, also we look for your hash on 23+ others web sites.
On this section you can also create a new md5 hash base on any text or just apply another algorithm to generate hashes like sha1 or crypt. Just add your hash or text on the first box and press the button with the algorithm you want to apply.
You also have options for string processing, check the tabs for more information.