Rate and compare adorable animals head-to-head using the ELO rating system.
Click on the animal photo you find more adorable in each head-to-head matchup.
Ratings are calculated using the ELO algorithm. Winners gain points while losers lose points based on relative ratings.
Watch the leaderboard update in real-time as animals battle for the top position.
From The Social Network to cute animals
Remember Facemash from The Social Network? This is a playful, wholesome recreation of that concept. In the 2010 movie, the original Facemash was created in a Harvard dorm room and became the predecessor to Facebook.
Our version replaces the controversial original concept with adorable animals! Using the same ELO rating system featured in the movie, you can vote for your favorite animals and watch the most popular ones climb to the top. All animal photos are sourced from Unsplash.
This project is a technical demonstration inspired by the movie and is not affiliated with Facebook, Meta, or the film.
In the opening scene of The Social Network (2010), the character creates Facemash in a single night after a bad breakup. The site allowed users to compare two photos and choose which they preferred.
The original crashed Harvard's network due to overwhelming traffic and led to disciplinary action. However, it demonstrated the viral potential of comparative rating systems — concepts that would later influence modern social media.
This clone celebrates that moment in internet history while keeping things fun, ethical, and family-friendly with cute animal photos.