Nevermind the design, this tool is actually really easy to use. Just add the pages you want to ABCD test, add the % and you'll get a shortlink you can share. Get (detailed) conversion analytics after implementing a hidden pixel on your success page and you'll be A/B testing like a boss (for free). It's basically like a link shortener, but added to that is custom randomisation of the multiple URLs you can add to it.
Check out the video to see how it works.
Maybe @galligator can answer some Q's!
Idea Stash