What is MD5?
The MD5 algorithm is a widely used hash function producing a 128-bit hash value. Although MD5 was initially designed to be used as a cryptographic hash function, it has been found to suffer from extensive vulnerabilities. It can still be used as a checksum to verify data integrity, but only against unintentional corruption.
How to encrypt in MD5?
For this purpose you can use any programming language or any tool. You can try here our MD5 Online Encryption tool
MD5 PHP Sample of use
$str = "Hello"; echo "The string: ".$str; echo md5($str);