最終更新
オープンソースライセンス
QrDeco はオープンソースの成果の上に成り立っており、必須のライセンス表記はこのページにまとめられています。バーコードエンジンは BSD-3-Clause ライセンスで配布される Zint ライブラリであり、あわせてサイト自身の構築に使われているコンポーネントも掲載しています。
Zint — バーコードエンジン
QrDeco が対応するすべてのシンボロジーは、Robin Stuart が保守するオープンソースのバーコードライブラリ Zint によってエンコードされます。Zint はブラウザーで動作するようコンパイルされており、QrDeco はそのビルドを、記録済みの 2 か所のラッパー修正を除いてそのまま組み込んでいます。どちらの修正もライセンスを変えるものではありません。ライセンスの求めに従い、ライブラリおよび WebAssembly ビルドの著作権表示と BSD-3-Clause の全文を以下に転載します。
利用者にとっての意味
BSD-3-Clause は、上記の表記がともに配布されることを条件に、商用を含めて誰でもエンジンを利用、研究、改変、再配布できます。書き出したものへの影響はありません。ライセンスが及ぶのはエンジンであって、それを使って作ったバーコードではありません。
すべてのオープンソースライセンスと同じく、無保証で提供されます。利用規約ページの責任の制限は、これらのコンポーネントにも及びます。
その他のオープンソースコンポーネント
サイトとジェネレーターは、以下のコンポーネントを使って構築されています。各著作権表示はパッケージ自身のライセンスファイルからそのまま転載したもので、共通の MIT および ISC の文本が後続します。
Zint — barcode encoding library
Copyright (C) 2008-2025 Robin Stuart
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
@zshzebra/zint-wasm — the WebAssembly build QrDeco embeds
Copyright (c) 2026, zshzebra
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
コンポーネントとその著作権表示
- react · MIT
- Copyright (c) Meta Platforms, Inc. and affiliates.
- react-dom · MIT
- Copyright (c) Meta Platforms, Inc. and affiliates.
- i18next · MIT
- Copyright (c) 2025 i18next
- react-i18next · MIT
- Copyright (c) 2025 i18next
- zustand · MIT
- Copyright (c) 2019 Paul Henschel
- lucide-react · ISC
- Copyright (c) for portions of Lucide are held by Cole Bemis 2013-2022 as part of Feather (MIT). All other copyright (c) for Lucide are held by Lucide Contributors 2022.
- jspdf · MIT
- Copyright(c) 2010-2021 James Hall, https://github.com/MrRio/jsPDF(c) 2015-2021 yWorks GmbH, https://www.yworks.com/
- svg2pdf.js · MIT
- Copyright (c) 2015-2026 yWorks GmbHCopyright (c) 2013-2015 by Vitaly Puzrin
- fflate · MIT
- Copyright (c) 2026 Arjun Barrett
MIT License
以下の MIT ライセンス文本は、上記のうち MIT と示されたすべてのコンポーネントに、それぞれの著作権表示のもとで適用されます。
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.
ISC License
以下の ISC ライセンス文本は、ISC と示されたコンポーネントに、その著作権表示のもとで適用されます。
Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.