Open Source Licenses
Last Updated: January 13, 2026
DracoChinese uses the following open source software libraries. We are grateful to the open source community for their contributions.
Third-Party Libraries
React Native Hanzi Writer
Package: @jamsch/react-native-hanzi-writer
Version: ^0.4.0
Author: jamsch
License: MIT License
Repository: https://github.com/jamsch/react-native-hanzi-writer
Description: Hanzi/Kanji writer and stroke order quizzer library for React Native, enabling users to learn and practice Chinese character writing with proper stroke order.
Hanzi Writer Character Data
Source: Make Me A Hanzi Project
License: Arphic Public License
Original Fonts: Arphic Technology
More Information: https://hanziwriter.org/license.html
Description: Character stroke order data and graphics based on fonts released by Arphic Technology under a permissive license in 1999.
Hanzi Writer (Website)
Package: hanzi-writer
Author: David Chanin
License: MIT License
Repository: https://github.com/chanind/hanzi-writer
Description: JavaScript library used for the animated stroke order and writing practice on our stroke order pages.
Make Me A Hanzi Dictionary Data
Source: Make Me A Hanzi Project (dictionary.txt, derived from Unihan and CJKlib)
License: GNU Lesser General Public License v3 (LGPL-3.0)
Repository: https://github.com/skishore/makemeahanzi
License Text: https://www.gnu.org/licenses/lgpl-3.0.html
Description: Radicals, components, definitions and readings shown on our stroke order pages. The derived data files (/data/stroke-order/*.json) are available under the same license.
MIT License
The MIT License is used by Hanzi Writer, React Native Hanzi Writer and other components.
MIT License Copyright (c) [year] [copyright holders] Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Arphic Public License
The character data used in Hanzi Writer is derived from fonts released by Arphic Technology under the Arphic Public License (APL). This license allows for free use, modification, and distribution of the font data.
For the complete Arphic Public License text and more details, please visit: https://www.freedesktop.org/wiki/Arphic_Public_License/
Additional Information
This page lists the major open source components used in DracoChinese. For a complete list of all dependencies and their licenses, please refer to our project repository or contact us at service@dracochinese.com.
We make every effort to comply with all license requirements and attribute our use of open source software appropriately. If you believe there is an issue with how we have used or attributed any open source software, please contact us immediately.