We are sorry to inform you that CKEditor 5 does not support Internet Explorer 11 yet.

Don't worry - we have it on our roadmap.

Browser compatibility section

Complete solutions, ready to use

Unlike many other editors, CKEditor 5 is not just “collaboration ready”. CKEditor 5 and Letters come with everything you need to make your software a truly real-time collaborative application.

The collaboration server required for propagating real-time collaboration changes is available as a service (SaaS) and as a ready-to-use solution for installation on your servers (on-premise). The on-premise installation is a fully scalable solution that can run in your own data center or in your private cloud.

CKEditor 5 collaboration features

Customize any CKEditor 5 build to include selected collaboration features such as real-time collaboration, comments and track changes.

Find out more

Not sure which solution to choose?

Do you have any other questions? We will be happy to answer them!

Startup Program

Want to have the best rich text editor in your startup project? We offer free development plans, flexible support models and licensing systems tailored to your business needs.

Find out more

Enterprise Offer

Looking for an enterprise-grade rich text editor that can boost productivity? We offer rock-solid software with premium technical support and custom development services.

Find out more

Trusted and approved by


Subscribe to our newsletter