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FAQ

NFC (Normalization Form C) is precomposed form where accented characters are single code points (e.g., ệ). NFD (Normalization Form D) is decomposed form where characters are split into base letter + combining marks (e.g., ệ). Vietnamese commonly uses NFC.

Paste your text into the tool; it will automatically analyze and show the result. If all characters are precomposed it's NFC, if all decomposed it's NFD, if both then it's mixed.

About this tool

This Unicode analyzer helps check if text is in NFC (precomposed) or NFD (decomposed) form, useful for developers working with Vietnamese and other accented languages. It also displays code points, Unicode character categories, and lets you convert between NFC and NFD forms.