Hanyu Hanzì (汉语汉字) is an online language reference website offering searchable tools for Chinese characters, vocabulary, idioms, and English words. Its resources are designed to help users look up pronunciations, meanings, character components, and writing information in one place. The site reports a collection of more than 100,000 simplified and traditional Chinese characters, organized using Unicode 17.

0, and a Chinese vocabulary database containing over 320,000 entries. It also provides roughly 50,000 idioms, with details such as pinyin, explanations, and character breakdowns. For English learners, the website lists more than 100,000 commonly used words, including vocabulary associated with school, college entrance, postgraduate, TOEFL, IELTS, and GRE study.

Additional tools support searching by pinyin, radical, or stroke count, and include character stroke order, word formation, sentence examples, synonyms, and antonyms. With sections covering resources such as the Xinhua Dictionary, the Kangxi Dictionary, and Shuowen Jiezi, Hanyu Hanzì serves as a broad online reference for Chinese language study and lookup