Homoglyph detector
Find look-alike letters from other alphabets hiding in your text and fix or list them.
Homoglyph detector
Paste any text and this tool scans it character by character for letters that look Latin but actually come from another alphabet — a Cyrillic а standing in for "a", a Greek ο standing in for "o", and dozens of similar pairs across the Cyrillic and Greek scripts. These substitutions are the core trick behind homograph attacks: a domain like "pаypal.com" or a username like "аdmin" can look identical to the real thing while pointing somewhere else entirely, and a glance at the screen will not catch it.
Switch the view between a findings list and corrected text. The findings list reports every match with its line number, the character itself, its Unicode code point and the script it belongs to, so you see exactly what was swapped and where. Corrected text instead returns your input with every flagged character replaced by its Latin counterpart. "Only mixed-script lines" narrows either mode to lines that combine Latin letters with look-alikes, so a paragraph written entirely in Cyrillic or Greek is not flagged just for using its own alphabet. "Ignore single-script text" goes further and skips the whole input when every letter already belongs to one script, leaving genuinely foreign-language text alone.
The detector recognises common Cyrillic and Greek look-alikes for Latin letters — the pairs actually used in spoofing, not the full Unicode confusables table, which runs into the thousands and would bury real findings in noise. Detection updates as you type, and even long documents finish in milliseconds.
Everything runs locally in your browser; the text you paste is never uploaded anywhere. That makes it safe to check sensitive material — internal usernames, domain lists, code snippets — before it ships. Copy the result, download it as a .txt file, clear the input, or send the output back into the input to run another pass.