It's called Logocaster - https://logocaster.com
Logocaster is meant to help you explore a huge universe of logo designs when brainstorming your brand/logo. It makes it quite easy to scan a bunch of style/font/palette options and then "drill down" and see designs which only incorporate the features you like.
Right now it's a playground for testing out fonts, colors and a few logo styles. I'm planning on incorporating graphics from the Noun Project and giving a bit more of a rich experience around tweaking a specific design.
You can explore the functionality without registering, and save/download your favorites as SVG if you do register (edit: for free, at least until I've incorporated Stripe).
I'm looking for any feedback on the direction the project is headed, or interesting use cases where the API that powers this whole thing could be put to use, cheers!