
CKEditor 4
Proven, enterprise-grade WYSIWYG HTML editor with wide browser compatibility, including legacy browsers.
- Paste from Word and Excel, spell check, accessibility checker, tables.
- Autocomplete, @mentions, widgets, code snippets, emoji 😊 plugins.
- Full control over content: HTML filtering, view source mode.
- Great accessibility: WCAG 2.0 AA and Section 508 compliant.
- Long-term support (LTS) until 2023.
CKEditor 5
Modern JavaScript rich text editor with a modular architecture. Its clean UI and features provide the perfect WYSIWYG UX ❤️ for creating semantic content.
- Written in ES6 with MVC architecture, custom data model, virtual DOM.
- Responsive images and media embeds (videos, tweets).
- Custom output format: HTML and Markdown support.
- Boost productivity with auto-formatting and collaboration.
- Extensible and customizable by design.


Collaboration
With CKEditor 5, every application can become online collaboration software. Boost your productivity with faster review and instant delivery.
- Real-time collaborative editing for documents.
- Track changes (coming soon).
- Comments, discussions, users panel with avatars.
- Comment-only mode for text suggestions.
- Support for all rich-text features, including tables or media.
Image upload
Flexible image upload and file manager tools for adding responsive images, videos or PDF files to your content.
- One-click hassle-free drag&drop file upload support.
- Top-notch security with granular user permissions.
- File and folder management: upload, delete, move, categorize.
- Built-in image editor with image crop and resize or filters.
- Multiple storage options: local file server, FTP and cloud support.

Why CKEditor?
20000+ Customers that already trusted us. This gives us a solid foundation on which we can develop the editor.
12.000+
Automated, manual, unit and integration tests for CKEditor 4 and CKEditor 5. Software quality is in our DNA. We know that delivering rock-solid components to external applications and being a reliable partner is crucial. We spend over 50% of our time on writing tests and documentation.
25M+
The number of CKEditor downloads. The number of users exceeds hundreds of millions. With such a huge user base, we receive a lot of valuable feedback — issues, feature requests or requests for documentation clarification. A large number of users helps us evolve and improve every day.
400+
Articles in the documentation (+6000 pages with API documentation). CKEditor is not just the interface that one can use to write. It is a component with rich, well-documented API that allows developers to write custom features on top of it. The community created over 400 publicly available plugins for CKEditor 4 thanks to such approach.
21.000+
The number of Stackoverflow questions related to CKEditor. You are in good company! If it happens that you cannot find an answer in the documentation, there is a huge chance that you will find it already on StackOverflow. Oh, and we are active there, too :)