A Ruby port of monsterid.
Shell:
$ gem install monster_id
Code:
require 'monster_id'
# MonsterId.generate(seed, optional_size)
MonsterId.generate('random_seed').save('monster.png') # new file!
uri = MonsterId.generate('a_seed', 20).to_data_uri # paste it in the browser!
raw_png = MonsterId.generate('your_seed').to_s # use this one if you want to process the png
License: CC BY 3.0