This converter walks your text character by character and swaps each Chinese character for its counterpart using a built-in table of 300+ of the most common Simplified/Traditional differences — for example 国/國, 学/學, 这/這, 关/關 and 爱/愛. Characters that are identical in both forms, along with punctuation, letters and numbers, are passed through unchanged.
Note this is a common-character mapping, not a full dictionary: it does not do word-level or phrase-level conversion, so region-specific vocabulary (such as 软件 vs 軟體) and one-to-many mappings are not resolved. It is ideal for quick, readable conversion of everyday text. Everything runs locally in your browser — nothing is uploaded.