CKSource

CKSource is a software company that develops rich text editing components and collaboration tools for web applications. It is best known for CKEditor, a web-based editor that enables developers to add advanced content editing capabilities to websites and web apps.

The company’s flagship products include CKEditor 4 and CKEditor 5. CKEditor 4 has been widely adopted for many years and remains supported and maintained for existing deployments. CKEditor 5 represents a modern, modular rewrite designed to be more extensible and adaptable to contemporary web development needs. CKEditor components are available under open-source licenses as well as commercial licenses for projects that require additional features, support, or services.

Beyond CKEditor, CKSource offers CKFinder, a file manager integration that complements the editor’s media handling capabilities, and CKEditor Cloud Services, a hosted platform that provides hosting, real-time collaboration, autosave, and other collaboration-oriented features. The company also provides professional services, technical support, and enterprise solutions designed to integrate with popular content management systems and web frameworks.

CKSource emphasizes an extensible architecture, enabling developers to customize editors through plugins, widgets, and APIs. The company maintains an active development workflow and contributes to the broader ecosystem through open-source releases and community engagement. CKSource’s products target web-based editorial experiences across industries, including content management, publishing, education, and e-commerce, helping organizations deliver rich, structured content within their applications.