I or L Checker
Tell l, I, 1, O and 0 apart — and catch invisible or fake Unicode characters.
● Runs in your browser
| Char | Position | Code point | What it is |
|---|
Easily confused: l I 1 O 0
Invisible or fake (non-Latin) character
How it works
Your browser walks the text character by character, shows each one large in a font that separates l I 1 O 0, and flags non-ASCII look-alikes (homoglyphs) and invisible characters such as zero-width spaces.