Jkain is an extremely fast MD5-”cracker” written in Java, it can crack the hash of the password Fgpyyih804423 in just one second and has a average cracking speed of 4-5 hashes per second. It has an success ratio about 3/4 on “normal” DB dumps from sites.
Freeware version will allow you to load 50 hashes and try and crack them out, full version cost $10 which removes this limitation.
It is available from here.
Unzip the downloaded file
Java Runtime Environment (JRE) version 6.0+ required.
Windows - Double click on the jar file
Linux - java -jar jkain084.jar
Its simple and quick, can be an ideal tool to save submitting those md5 hashes to online crack engines :-)