A while back I made this NPC generator for a Finnish role playing game called Praedor. I received pretty good feedback for it, so I decided to modify the same tool to generate random monsters for Call of Cthulhu as well. I thus present to you, the Call of Cthulhu Creature Generator:
It’s pretty cool. And it’s pretty simple. Choose the monster you want, click “generate” and it’ll roll out the creatures for you. You can also set the desired level in order to create above or below average creatures. It’s a shame I wasn’t the first the blog about it, Cthulhu.de beat me 
There’s some discussion about this tool also on the awesome yog-sothoth forum. Leave a comment below for any feedback or suggestions. I’m always open to new ideas, especially if they are easy to implement 
Thanks for your comment and the editor is really useful! Keep on the good work and thank you for your kind words about cthulhu.de
(Sorry my english is not so good. Reading is simple, but writing… kinda difficult