hexcode

go get -u github.com/partyzanex/hexcode
# or
git clone https://github.com/partyzanex/hexcode.git
cd hexcode 
make install

Usage:

hexcode -e abcd
# 616263643132332d3d7a

hexcode -d 616263643132332d3d7a
# abcd123-=z