Free Fire Nickname Character Counter

A tiny, dependency-free function that counts Free Fire nickname characters the way the game actually counts them — not the way string.length does.

The problem

Free Fire's nickname field caps at 12 characters. Simple enough — until you try to validate that in code:

"Ghost".length          // 5  ✅ correct
"👻Ghost".length         // 7  ❌ wrong — emoji is 2 UTF-16 code units
"꧁Ghost꧂".length        // 7  ✅ happens to be correct here
"𝓖𝓱𝓸𝓼𝓽".length          // 10 ❌ wrong — bold script letters are astral (SMP), 2 units each

JavaScript's .length counts UTF-16 code units, not visible characters. Anything outside the Basic Multilingual Plane (bold/script/Fraktur styles, many emoji) reports double. Any nickname validator built on plain .length will silently reject valid names or accept invalid ones.

What Free Fire actually does

Tested in-game across multiple symbol types (『 』, ⚜, ❧) and confirmed: one visible symbol = one character, regardless of which Unicode block it comes from. Free Fire counts by codepoint, not by UTF-16 unit. Full test writeup: https://fontsgeneratorpro.com/free-fire-fonts/

The fix

function freeFireCharCount(str) {
  return [...str].length; // spreads by codepoint, not UTF-16 unit
}

freeFireCharCount("👻Ghost");   // 6  ✅
freeFireCharCount("𝓖𝓱𝓸𝓼𝓽");    // 5  ✅

Python equivalent (Python 3 strings are already codepoint-based, so this is mostly a non-issue there — but here's an explicit version for parity):

def free_fire_char_count(s: str) -> int:
    return len(s)  # Python 3 str is codepoint-based already

Known limitation

This covers ordinary decorative symbols (brackets, stars, flourishes) — the cases actually tested. Stacked/combining-mark styles (glitch, underline via U+0332/U+0334/U+0336) were not part of the original in-game test and may follow different counting behavior. Don't treat this library as authoritative for those until independently verified.

Try it interactively

No install needed — the Free Fire Font Generator has this same counting logic built into a live tool with 200+ styles.

License

MIT