Data sources & licenses

Inkstone stands on openly-licensed data. We honor every source license, including the ShareAlike terms of the Creative Commons sets below, and attribute each source in product beside the content it provides. Our AI-curated enrichments live in separate tables and never modify source data, so attribution stays clean.

• CC-CEDICT

  Chinese-English definitions and pinyin

  CC BY-SA 3.0
• Wiktionary

  Etymology, extra glosses, synonyms & antonyms, derived terms

  wiktionary.orgkaikki.org (wiktextract)

  CC BY-SA 4.0
• Tatoeba

  Native example sentences

  CC BY 2.0 FR
• cjk-decomp

  Character component decomposition

  MIT
• complete-hsk-vocabulary

  HSK levels and word frequency

  MIT
• hanzi-writer

  Stroke-order animation

  MIT (data: Arphic Public License)