Base64 E/D is a simple base64 encoder / decoder which can dynamically encode or decode strings. You can simply put text inside the corresponding area to simply encode or decode it. You can also call the decoder with the following parameters :
?q=givenString : Base64 E/D will try to detect if the given string is base64 or not, and will automatically encode or decode it.
?encode=givenString : to encode the given string
?decode=givenString : to decode the given string