Unicode Normalizer
Unicode can represent text that looks identical using different underlying code points. Compare the four standard normalization forms to diagnose accent, filename, search, and data-matching problems.
What the Four Forms Mean
NFC prefers composed characters and is the common choice for stored and displayed text. NFD separates base letters from combining marks. NFKC and NFKD also replace compatibility characters such as ligatures and circled numbers with simpler equivalents.