Unicode Normalizer
Normalize Unicode text across all four normalization forms (NFC, NFD, NFKC, NFKD), inspect individual code points, and detect suspicious characters used in IDN homograph attacks. Essential for phishing analysis and input validation testing.
Unicode Normalization & Homograph Attack Detection
Unicode normalization transforms text into a canonical form. The four normalization forms serve different purposes: NFC (composed), NFD (decomposed), NFKC (compatibility composed), and NFKD (compatibility decomposed).
IDN Homograph Attacks use visually similar Unicode characters to impersonate domain names. For example, replacing a Latin "a" with Cyrillic "ะฐ" creates URLs that look identical but resolve to different destinations. This tool flags characters that change under NFKC normalization โ a key indicator of homograph attacks.