opencc4j

Why we included this project

Java developers who need to convert text between Simplified and Traditional Chinese can add this as a single Maven dependency rather than adopting a full NLP framework. It handles the cases that naive character-by-character mapping gets wrong, like 发/發/髮 and 干/幹/乾, by working at the phrase level. Separate utilities cover Taiwan, Hong Kong, and Japanese shinjitai conventions, so you can target the regional variant that fits your audience. The API also includes helpers to detect whether a string is simplified or traditional and to list the simplified or traditional tokens in a sentence. Because the dictionary is kept separate from the conversion logic, you can swap in your own word lists without touching the code。