# @ckeditor/ckeditor5-collaboration-core > Base utilities used by CKEditor 5 collaboration features to support multiple users working together in a rich text editor. Latest version **48.5.1** (published 2026-09-16) · SEE LICENSE IN LICENSE.md license · 194.1K weekly downloads ## Install ```sh npm install @ckeditor/ckeditor5-collaboration-core pnpm add @ckeditor/ckeditor5-collaboration-core yarn add @ckeditor/ckeditor5-collaboration-core bun add @ckeditor/ckeditor5-collaboration-core ``` ## Health **Score 80/100 (A)** — status: active. Positive: moderate downloads; has types; esm support; no vulnerabilities; recently updated; high maintenance score. ## Facts | | | |---|---| | Version | 48.5.1 | | Published | 2026-09-16 | | First published | 2018-11-19 | | Weekly downloads | 194.1K | | License | SEE LICENSE IN LICENSE.md | | TypeScript types | bundled | | Module format | ESM + CommonJS | | Dependencies | 13 | | Unpacked size | 421.9 KB | | Known vulnerabilities | 0 | | Install scripts | no | | Author | CKSource | | Maintainers | ckeditor | | Keywords | CKEditor, ckeditor5, ckeditor 5, WYSIWYG, WYSIWYW, text, rich-text, richtext, editor, editing, html, operational transformation, ot, collaboration, collaborative, real-time, realtime, real time, framework | ## Links - npm: https://www.npmjs.com/package/@ckeditor/ckeditor5-collaboration-core - Homepage: https://ckeditor.com/collaboration/ - Issues: https://support.ckeditor.com/hc/en-us/requests/new - npm.io page: https://npm.io/package/@ckeditor/ckeditor5-collaboration-core ## Dependencies (13) - [luxon](https://npm.io/package/luxon.md) 3.6.1 - [@types/luxon](https://npm.io/package/@types/luxon.md) 3.6.2 - [@ckeditor/ckeditor5-ui](https://npm.io/package/@ckeditor/ckeditor5-ui.md) 48.5.1 - [@ckeditor/ckeditor5-core](https://npm.io/package/@ckeditor/ckeditor5-core.md) 48.5.1 - [@ckeditor/ckeditor5-link](https://npm.io/package/@ckeditor/ckeditor5-link.md) 48.5.1 - [@ckeditor/ckeditor5-list](https://npm.io/package/@ckeditor/ckeditor5-list.md) 48.5.1 - [@ckeditor/ckeditor5-icons](https://npm.io/package/@ckeditor/ckeditor5-icons.md) 48.5.1 - [@ckeditor/ckeditor5-utils](https://npm.io/package/@ckeditor/ckeditor5-utils.md) 48.5.1 - [@ckeditor/ckeditor5-engine](https://npm.io/package/@ckeditor/ckeditor5-engine.md) 48.5.1 - [@ckeditor/ckeditor5-widget](https://npm.io/package/@ckeditor/ckeditor5-widget.md) 48.5.1 - [@ckeditor/ckeditor5-comments](https://npm.io/package/@ckeditor/ckeditor5-comments.md) 48.5.1 - [@ckeditor/ckeditor5-html-support](https://npm.io/package/@ckeditor/ckeditor5-html-support.md) 48.5.1 - [@ckeditor/ckeditor5-track-changes](https://npm.io/package/@ckeditor/ckeditor5-track-changes.md) 48.5.1 ## Alternatives - [ext-list](https://npm.io/package/ext-list.md) — 6.3M weekly downloads - [@lexical/selection](https://npm.io/package/@lexical/selection.md) — 3.8M weekly downloads - [@lexical/text](https://npm.io/package/@lexical/text.md) — 3.6M weekly downloads - [@lexical/clipboard](https://npm.io/package/@lexical/clipboard.md) — 3.0M weekly downloads - [@tiptap/extension-mention](https://npm.io/package/@tiptap/extension-mention.md) — 3.0M weekly downloads ## Recent versions - 48.5.1 (latest) — 2026-09-16 - 47.7.4 (lts-v47) — 2026-09-16 - 0.0.0-nightly-20260916.0 (nightly) — 2026-09-16 - 0.0.0-nightly-next-20260907.0 (nightly-next) — 2026-09-07 - 48.5.0-alpha.7 (alpha) — 2026-09-02 - 0.0.0-internal-20260224.0 (internal) — 2026-02-24 - 38.0.0-rc.1 (rc) — 2023-05-16 - 0.0.0-nightly-20260915.0 — 2026-09-15 - 0.0.0-nightly-20260914.0 — 2026-09-14 - 0.0.0-nightly-20260913.0 — 2026-09-13 - 0.0.0-nightly-20260912.0 — 2026-09-12 - 0.0.0-nightly-20260911.0 — 2026-09-11 - 0.0.0-nightly-20260910.0 — 2026-09-10 - 0.0.0-nightly-20260909.0 — 2026-09-09 - 0.0.0-nightly-20260908.0 — 2026-09-08 - … 1785 more at https://npm.io/package/@ckeditor/ckeditor5-collaboration-core/versions ## README CKEditor 5 Collaboration core ================================== [![npm version](https://badge.fury.io/js/%40ckeditor%2Fckeditor5-collaboration-core.svg)](https://www.npmjs.com/package/@ckeditor/ckeditor5-collaboration-core) CKEditor 5 collaboration core is a low-level API that provides base features to support multiple users working together in a rich text editor. It is used in collaborative features such as [comments](https://ckeditor.com/collaboration/comments/), [track changes](https://ckeditor.com/collaboration/track-changes/), or [real-time collaboration](https://ckeditor.com/collaboration/real-time/) in CKEditor 5. This is a premium feature. Sign up for a [free non-commitment 14-day trial](https://portal.ckeditor.com/checkout?plan=free), or see: [https://ckeditor.com/pricing](https://ckeditor.com/pricing) for more information. ## Installation This plugin is part of the `ckeditor5-premium-features` package. Install the whole package to use it. ```bash npm install ckeditor5-premium-features ``` ## Create free account If you want to check full CKEditor 5 capabilities, sign up for a [free non-commitment 14-day trial](https://portal.ckeditor.com/checkout?plan=free). ## Documentation For more information about collaboration features visit [CKEditor 5 collaboration features overview documentation](https://ckeditor.com/docs/ckeditor5/latest/features/collaboration/collaboration.html). Also, make sure you visit the [CKEditor 5 changelog](https://github.com/ckeditor/ckeditor5/blob/master/CHANGELOG.md) whenever a new version of the package is released. ## Getting support CKEditor 5 collaboration core comes with outstanding support from a dedicated team of customer care specialists, QA engineers and CKEditor 5 developers. The team will gladly assist you in all aspects from setting up your account to integrating CKEditor 5 collaboration features with your application. As a licensed CKEditor 5 collaboration features user you can report bugs and request features directly through the CKEditor Ecosystem customer dashboard. ## License **CKEditor 5 Collaboration core**
Copyright (c) 2003–2026, [CKSource Holding sp. z o.o.](https://cksource.com) All rights reserved. CKEditor 5 Collaboration core is licensed under a commercial license and is protected by copyright law. For more information, see: [https://ckeditor.com/pricing](https://ckeditor.com/pricing). ### Trademarks **CKEditor** is a trademark of [CKSource Holding sp. z o.o.](https://cksource.com) All other brand and product names are trademarks, registered trademarks or service marks of their respective holders. --- _Source: https://npm.io/package/@ckeditor/ckeditor5-collaboration-core · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._