CKEditor 4
WYSIWYG HTML editor JavaScript library for web pages, published by CKSource.
ckeditor.com/ckeditor-4/repositorydocsplugins
CKEditor 4 is a WYSIWYG HTML editor loaded as a JavaScript file on a web page. The script comes from npm, a CDN or a manual download, and a call with the id of an element turns that element into a rich-text area. The README lists a plugin repository and localizations with right-to-left support.
The project states that CKEditor 4 reached end of life. The homepage says it is considered end-of-life software, and the README names CKEditor 5 as the upgrade route. The newest releases are a long-term support line available under commercial terms, with a license key.
Worth knowing
The open source terms end with the last open source release. The LICENSE file for the older versions names the GPL, LGPL and MPL, at the choice of the user. The newest line is available only under the Extended Support Model terms.
Identity
Rendering and deploy
Releases
Adoption
Sources
- 2026-11-04: Status, First release, Categories, Install with, Multilingual, links, Plugins
github.com/ckeditor/ckeditor4/blob/master/README.md - 2026-11-04: Status, links
ckeditor.com/ckeditor-4/ - 2026-11-04: links
ckeditor.com/docs/ckeditor4/latest/index.html - 2026-11-04: links
github.com/ckeditor/ckeditor4 - 2026-11-04: Maintainer, License, License model
github.com/ckeditor/ckeditor4/blob/master/LICENSE.md - 2026-11-04: Headquarters
ckeditor.com/legal/ - 2026-11-04: Install with
ckeditor.com/docs/ckeditor4/latest/guide/dev_installation.html - 2026-11-04: Current major version
registry.npmjs.org/ckeditor4/latest - 2026-11-04: Last release
registry.npmjs.org/ckeditor4 - 2026-11-04: GitHub stars
api.github.com/repos/ckeditor/ckeditor4 - 2026-11-04: Contributors
api.github.com/repos/ckeditor/ckeditor4/contributors - 2026-11-04: npm downloads a week
api.npmjs.org/downloads/range/2026-10-26:2026-11-01/ckeditor4 - 2026-11-04: Dependent packages, Dependent repositories
packages.ecosyste.ms/api/v1/registries/npmjs.org/packages/ckeditor4