CKEditor 4 is a WYSIWYG HTML editor that provides rich text editing capabilities with extensive customization options through plugins and configuration.
The tool solves the problem of embedding a full-featured rich text editor into web applications. It offers a browser-based interface for editing HTML content with visual formatting controls, allowing users to create and modify formatted text without writing HTML directly. The editor is highly customizable, supporting numerous plugins and configuration options to adapt to different use cases and design requirements.
Developers considering adoption should be aware that CKEditor 4 reached end of life on June 30, 2023. The open source version, available through tags 4.22.1 and below, no longer receives security updates, creating potential security risks for applications using it. A commercial Long Term Support edition is available under an Extended Support Model with guaranteed security updates and critical bug fixes through December 2029. For new projects or those requiring ongoing security coverage, the README recommends evaluating CKEditor 5, which is a completely new editor with different architecture and licensing terms. Upgrading from CKEditor 4 to CKEditor 5 requires substantial migration work rather than a simple folder replacement. Projects with GPL-incompatible licenses may qualify for CKEditor 5 under a free open source program. Developers must weigh the security implications of using an unmaintained version against the effort required to migrate to a newer solution or the cost of commercial support.
Work in the issue tracker is dominated by confirmed bugs and feature requests, indicating ongoing triage and categorization of reported issues.
