Love Tester

What actually happens when you type your name and your crush’s name into Love Tester and tap the heart? Nothing scientific, and that’s sort of the point. The game runs your two names through its own algorithm and hands back a single number between zero and a hundred, framed as how well the two names match. It takes seconds, needs no setup, and turns a crush — or a joke pairing with a friend, a sibling, or a teacher’s name typed in for a laugh — into a shareable little verdict.

Typing Two Names Into the Love Tester Meter

The loop is short enough to run a dozen times in one sitting, which is exactly why it spread through school computer labs back when it first existed as a Flash game and still gets replayed the same way now that it runs on HTML5.

1. Type your own name into the first box.
2. Type the second name — a crush, partner, or friend — into the box beside it.
3. Tap the heart to run the names through the algorithm.
4. Read the returned percentage along with its short verdict line.

A high result comes with an encouraging line suggesting nothing stands in the way of a happy future with that person, while a low one nudges you to look elsewhere, and neither is meant as anything more than a punchline. What keeps people coming back to the same box is retyping the name with small variations — a nickname, a shortened version, a pet name — to see whether the number moves, since the algorithm reads the exact letters typed rather than the person behind them. That single quirk is most of the reason friend groups end up crowded around one screen trying every combination instead of walking away after the first try.

Players testing a real crush’s name tend to go first and quietest, players treating it as a joke burn through a dozen silly pairings back to back, and a third type just keeps adjusting spelling to chase a higher score. None of that changes what the game actually is: a quick, playful number generator, not a stand-in for how two people actually get along.

Does Love Tester actually measure real feelings?

No — the percentage comes from the game’s own algorithm working through the letters typed, not from any real information about either person. It’s built as a lighthearted, shareable moment rather than a genuine prediction, which is exactly why the same crush’s name typed two different ways can produce two different scores.

Why does the score change if you use a nickname instead of a full name?

Because the algorithm reads the specific characters entered, a nickname, a shortened first name, or a full legal name can each return a different percentage for the same two people. That’s also why friend groups often test several versions of a pair of names before settling on the one that gets the reaction they wanted.

Love Tester hasn’t changed the core idea since its earliest browser days: two names in, a tap on the heart, and a few seconds of genuine suspense before the percentage lands. It works precisely because it doesn’t pretend to be anything deeper than that number and its short verdict line.