I or L Checker
Visually distinguish uppercase I from lowercase l. In some fonts those two characters look nearly identical. Paste or type text below — capital I is highlighted green, and lowercase l is highlighted red — then try different fonts to compare how they render.
Example: in words like Illinois or illustration, each uppercase I and lowercase l is colored so you can tell them apart at a glance.
FAQ
Why do uppercase I and lowercase l look the same?
In many sans-serif fonts, capital I and lowercase l are drawn as nearly identical vertical strokes. This checker colors them differently so you can tell which is which in your text.
Does the checker work with different fonts?
Yes. Choose a font from the list to see how uppercase I and lowercase l render in that typeface, with the same green and red highlighting.
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