Markdown Editor

ヘルプ

Markdown Editor

URL: https://www.cp9.jp/markdown_editor/index.html

© 2026 Kusano Yuki All rights reserved.

【利用許諾契約書(EULA)】

本ソフトウェア(以下「本ソフトウェア」)は、以下の条件に基づき利用を許諾します。本ソフトウェアを使用することで、利用者は本契約書に同意したものとみなします。

■ 第1条(著作権)

本ソフトウェアの著作権は、著作者に帰属します。本ソフトウェアは著作権法その他の法律により保護されており、利用者は著作権者の権利を尊重しなければなりません。

■ 第2条(利用条件)

1. 個人・非営利目的での利用
・無償で利用できます。
・改変や再配布を行う場合は、本契約書を同梱してください。

2. 業務利用・商用利用
・有償(副業と判定されると困るので、しばらくの間は無償で利用可能です)での利用許諾が必要です。
・商用利用を希望される場合は、著作者と別途ライセンス契約を締結してください。(連絡先:https://www.cp9.jp/markdown_editor/bbs/threads/1)
  企業、法人、団体、学校、官公庁等における利用
  業務上の文書、設計書、報告書、マニュアル等の作成
  顧客、取引先、第三者へ提出・配布する文書の作成
  有償・無償を問わず、業務・事業活動の一環としての利用
  本ソフトウェアを利用した成果物を業務目的で使用する行為

■ 第3条(禁止事項)

次の行為を禁止します。
1. 著作者の許可なく、本ソフトウェアを販売、貸与、サブライセンスすること
2. 商用利用に関して無断で業務に利用すること
3. 著作権表示および本利用許諾契約書を削除すること

■ 第4条(サポートおよび保証)

1. 本ソフトウェアは 「現状有姿(AS IS)」 で提供されます。
2. 個人利用において、サポートや動作保証は行いません。
3. 業務利用・商用利用におけるサポート内容は、別途契約により定めるものとします。

■ 第5条(免責事項)

1. 本ソフトウェアの使用または使用不能により生じたいかなる損害についても、著作権者は一切の責任を負わないものとします。

■ 第6条(契約の変更)

著作者は必要に応じて本契約を変更する場合があります。変更後の契約は公開された時点で効力を持つものとします。

■ 第7条(準拠法)

本契約は日本法に準拠します。


【End User License Agreement (EULA)】

End User License Agreement (EULA)
This End User License Agreement (hereinafter referred to as this “Agreement”) governs the use of this software (hereinafter referred to as the “Software”).
By using the Software, you are deemed to have agreed to the terms of this Agreement.

Article 1 (Copyright)

The copyright of the Software belongs to the author.
The Software is protected by copyright laws and other applicable laws, and users must respect the rights of the copyright holder.

Article 2 (Terms of Use)

1. Personal and Non-Commercial Use
The Software may be used free of charge for personal and non-commercial purposes.
If the Software is modified or redistributed, this Agreement must be included with the distribution.

2. Business or Commercial Use
A paid license is required (to avoid being classified as a side business, it will be available free of charge for the time being).
If you wish to use the Software for business or commercial purposes, you must enter into a separate license agreement with the author. (Contact: https://www.cp9.jp/markdown_editor/bbs/threads/1)
Business or commercial use includes, but is not limited to, the following:
Use by companies, corporations, organizations, educational institutions, or government entities
Creation of business-related documents such as specifications, design documents, reports, or manuals
Creation of documents to be submitted or distributed to customers, business partners, or third parties
Use as part of business or commercial activities, whether paid or unpaid
Use of outputs generated by the Software for business purposes

Article 3 (Prohibited Acts)

The following acts are prohibited:
Selling, renting, or sublicensing the Software without the permission of the author
Using the Software for business or commercial purposes without authorization
Removing or altering copyright notices or this Agreement

Article 4 (Support and Warranty)

The Software is provided “AS IS”, without any warranty of any kind.
No support or warranty is provided for personal use.
Support for business or commercial use shall be defined separately by contract.

Article 5 (Disclaimer)

The author shall not be liable for any damages arising from the use or inability to use the Software.

Article 6 (Amendment of the Agreement)

The author may modify this Agreement as necessary.
Any modified version of this Agreement shall become effective at the time it is published.

Article 7 (Governing Law)

This Agreement shall be governed by and construed in accordance with the laws of Japan.

© 2026 Kusano Yuki. All rights reserved.

使用ライブラリ / Third Party Licenses

CodeMirror 6

Copyright (C) 2018-2021 by Marijn Haverbeke <marijnh@gmail.com> and others

MIT License

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.
markdown-it

Copyright (c) 2014 Vitaly Puzrin, Alex Kocharin.

MIT License

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.
PrismJS

Copyright (c) 2012 Lea Verou

MIT License

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.
Mermaid

Copyright (c) 2014-2024 Knut Sveidqvist

MIT License

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.
DOMPurify

Copyright 2015 Mario Heiderich

Apache License 2.0

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
SVG.js & Plugins

Copyright (c) 2012-2021 Ulrich-Matthias Schäfer

MIT License

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.
Pickr

Copyright (c) 2018 - 2020 Simonwep

MIT License

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.
html2canvas

Copyright (c) 2012 Niklas von Hertzen

MIT License

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.
jsPDF

Copyright (c) 2010-2021 James Hall, yWorks, and other contributors

MIT License

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.
docx

Copyright (c) 2017 Volkan Ozcelik and others

MIT License

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.
Paper.js

Copyright (c) 2011, Juerg Lehni & Jonathan Puckey

MIT License

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.
KaTeX

Copyright (c) 2013-2023 Khan Academy and other contributors

MIT License

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.
markdown-it-texmath

Copyright (c) 2018 Stefan Goessner

MIT License

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.

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