The Chinese national GB standard defines a basic set of (around 6,000) characters for use in Simplified Chinese writing; this excludes many of the characters in the Taiwanese industry standard for Traditional Chinese called Big5 (around 13,000 characters in the basic set). However, Unicode is a superset of both (with the duplication removed).

This tool is used for converting a UTF-8 string which contains both Simplified and Traditional Chinese characters directly into a single Chinese character set.