About the data

The Mandarin word tracker, dictionary and text checker use these reference data sets. They are stored on this server and used only to show you definitions and measure your own texts; no learning content is hosted.

• CC-CEDICT, MDBG and contributors

  Dictionary definitions, pinyin and traditional forms.

  Licence: CC BY-SA 4.0.

• Make Me a Hanzi by Shaunak Kishore (character decompositions and etymologies)

  Character components, radicals and readings.

  Licence: LGPL-3.0 (dictionary.txt).

• Unicode Han Database (Unihan), Unicode, Inc.

  Stroke counts.

  Licence: Unicode License V3.

• wordfreq by Robyn Speer (Chinese frequencies combine SUBTLEX-CH, Wikipedia, OPUS subtitles and other corpora; see the wordfreq README for credits)

  Word and character frequency (ranking search results and coverage).

  Licence: CC BY-SA 4.0.

• International Chinese Language Education Chinese Proficiency Grading Standards (GF 0025-2021), Ministry of Education of the PRC / Center for Language Education and Cooperation; syllabus published by Chinese Testing International

  HSK 3.0 levels of words and characters.

  Licence: No licence stated; loaded from the operator's own copy for private use only, never exported.

Changes: pinyin is converted between tone marks and numbers and given toneless search keys; definitions are otherwise shown as published. Data derived from CC-CEDICT is available under the same licence (CC BY-SA 4.0).