Love Tester

You type your name into Love Tester, then your crush’s name right below it, and hit calculate knowing perfectly well the number that comes back doesn’t mean anything scientifically — and you still hold your breath for a second anyway. That’s the entire appeal in one motion.

A Percentage, Not a Prediction

Love Tester takes the two names you enter and runs them through a fixed formula to spit out a compatibility percentage between 0% and 100%, shown alongside a heart that fills up to match the score. There’s no real relationship data behind the number — it’s a name-based algorithm, the same kind used across dozens of similar browser games, built for a laugh rather than an actual answer about whether two people are a good match.

What keeps the game engaging despite that is how differently the same two people can score depending on exactly how their names are typed in. A full first-and-last-name entry can land completely differently than a nickname or a shortened version, which is why players rarely accept the first result as final.

The Retry Is the Real Game

Almost nobody runs Love Tester once. The common pattern is trying a name several different ways — full name, first name only, a nickname, sometimes even a middle name — until a result lands high enough to screenshot and send to a friend, or low enough to joke about. That retrying loop, not the single calculation, is what actually gets shared in group chats and at sleepovers.

Love Tester never claims to be more than a bit of fun with a name and a crush’s name, and that honesty about its own limits is exactly why it keeps getting reused as a shared joke instead of taken seriously as anything else.