Homoglyph Detector

A Homoglyph Detector is a security tool that scans text for Unicode characters that look visually identical (or very similar) to standard ASCII characters but have different code points. These confusable characters are used in homograph attacks where attackers register domain names that visually mimic legitimate ones.

For example, the Cyrillic letter "а" (U+0430) looks identical to the Latin "a" (U+0061). An attacker could register gооgle.com using Cyrillic "о" characters, making the domain visually indistinguishable from the real google.com.

This tool helps identify:

• Cyrillic homoglyphs — Cyrillic letters that look like Latin letters (а, е, о, с, р, х, і, etc.)
• Greek homoglyphs — Greek letters that mimic Latin characters (ο, ε, etc.)
• Accented Latin characters — Modified Latin letters used in place of standard ones
• Number homoglyphs — Unicode digits and letters that look like numbers (0 vs O, 1 vs l, etc.)
• Fullwidth characters — Wide-width versions of ASCII characters
• Mathematical and letterlike symbols — Special symbols that resemble standard characters

1. Enter text — Paste a domain name, URL, or any text you want to scan for homoglyph characters.
2. Click Detect — Press the button to scan the text. Analysis is performed entirely in your browser.
3. Review highlighted text — Suspicious characters are highlighted in yellow directly in the text.
4. Check the table — Each detected homoglyph is listed with its position, code point, what it looks like, and its Unicode block.
5. Use normalized text — The normalized version shows what the text should look like with standard ASCII characters.