EncryptionBox

EncryptionBox is a free online service providing 68 hashing and
encryption tools for you to use!

String algorithms

base64 encode
base64 decode
urlencode
urldecode
hex2bin
bin2hex
htmlentities
html entity decode
htmlspecialchars
htmlspecialchars decode
str rot13
strrev
strtolower
strtoupper
ucfirst
ucwords