3.3 KiB
Software License Agreement
CKEditor 5 (https://github.com/ckeditor/ckeditor5)
Copyright (c) 2003–2025, CKSource Holding sp. z o.o. All rights reserved.
Licensed under a dual-license model, this software is available under:
- the GNU General Public License Version 2 or later (see COPYING.GPL),
- or commercial license terms from CKSource Holding sp. z o.o.
For more information, see: https://ckeditor.com/legal/ckeditor-licensing-options.
If you are using CKEditor under commercial terms, you are free to remove the COPYING.GPL file with the full copy of a GPL license.
Sources of Intellectual Property Included in CKEditor 5
Where not otherwise indicated, all CKEditor 5 content is authored by CKSource engineers and consists of CKSource-owned intellectual property. In some specific instances, CKEditor 5 will incorporate work done by developers outside of CKSource with their express permission.
The following libraries are included in CKEditor 5 under the ISC license:
- hast-util-from-dom - Copyright (c) Keith McKnight keith@mcknig.ht.
- rehype-dom-parse - Copyright (c) 2018 Keith McKnight keith@mcknig.ht.
- rehype-dom-stringify - Copyright (c) 2018 Keith McKnight keith@mcknig.ht.
The following libraries are included in CKEditor 5 under the MIT license:
- @types/color-convert - Copyright (c) Microsoft Corporation.
- @types/hast - Copyright (c) Microsoft Corporation.
- blurhash - Copyright (c) 2018 Wolt Enterprises.
- color-convert - Copyright (c) 2011-2016 Heather Arthur fayearthur@gmail.com and Copyright (c) 2016-2021 Josh Junon josh@junon.me.
- color-parse - Copyright (c) 2015 Dmitry Ivanov.
- emojibase-data - Copyright (c) 2017-2019 Miles Johnson.
- es-toolkit - Copyright (c) 2024 Viva Republica, Inc.
- fuzzysort - Copyright (c) 2018 Stephen Kamenar.
- hast-util-to-html - Copyright (c) Titus Wormer tituswormer@gmail.com.
- hast-util-to-mdast - Copyright (c) Titus Wormer tituswormer@gmail.com and Copyright (c) Seth Vincent sethvincent@gmail.com.
- hastscript - Copyright (c) Titus Wormer tituswormer@gmail.com.
- is-emoji-supported - Copyright (c) 2016-2020 Koala Interactive, Inc.
- Regular expression for URL validation - Copyright (c) 2010-2018 Diego Perini.
- rehype-remark - Copyright (c) Titus Wormer tituswormer@gmail.com.
- remark-breaks - Copyright (c) 2017 Titus Wormer tituswormer@gmail.com.
- remark-gfm - Copyright (c) Titus Wormer tituswormer@gmail.com.
- remark-parse - Copyright (c) 2014 Titus Wormer tituswormer@gmail.com.
- remark-rehype - Copyright (c) Titus Wormer tituswormer@gmail.com.
- remark-stringify - Copyright (c) 2014 Titus Wormer tituswormer@gmail.com.
- unified - Copyright (c) 2015 Titus Wormer tituswormer@gmail.com.
- unist-util-visit - Copyright (c) 2015 Titus Wormer tituswormer@gmail.com.
- vanilla-colorful - Copyright (c) 2020 Serhii Kulykov iamkulykov@gmail.com.
Trademarks
CKEditor is a trademark of CKSource Holding sp. z o.o. All other brand and product names are trademarks, registered trademarks or service marks of their respective holders.