Question 1

What are homoglyphs?

Accepted Answer

Homoglyphs are characters from different scripts that look identical (e.g. Latin "a" U+0061 vs Cyrillic "а" U+0430). They are used in phishing URLs and can cause invisible bugs in source code.

Question 2

How does this tool detect confusable characters?

Accepted Answer

It references the Unicode Consortium's confusables.txt database to flag characters that visually resemble common ASCII or Latin characters but have different codepoints.

Unicode Explorer