Premium features are imported from a separate package named ckeditor5-premium-features . The same license key works for both the core editor and all premium features—you only need to add it once.

: license-key-domain-limit

What are you seeing in your browser console? Share public link

Usually restricted by monthly active users (MAU) or specific feature sets.

if (onLicenseValidated) onLicenseValidated(licenseKey);

A CKEditor 5 license key is a unique, alphanumeric string provided by CKSource (the creators of CKEditor) that authenticates your application to use premium features. When you initialize the editor in your JavaScript framework (such as React, Vue, Angular, or plain JavaScript), you pass this key into the configuration. The license key performs a few vital functions:

The license key feature is fully functional and can be integrated into any React application using CKEditor 5.

Ckeditor 5 License Key Hot Jun 2026

Premium features are imported from a separate package named ckeditor5-premium-features . The same license key works for both the core editor and all premium features—you only need to add it once.

: license-key-domain-limit

What are you seeing in your browser console? Share public link ckeditor 5 license key hot

Usually restricted by monthly active users (MAU) or specific feature sets. Premium features are imported from a separate package

if (onLicenseValidated) onLicenseValidated(licenseKey); Share public link Usually restricted by monthly active

A CKEditor 5 license key is a unique, alphanumeric string provided by CKSource (the creators of CKEditor) that authenticates your application to use premium features. When you initialize the editor in your JavaScript framework (such as React, Vue, Angular, or plain JavaScript), you pass this key into the configuration. The license key performs a few vital functions:

The license key feature is fully functional and can be integrated into any React application using CKEditor 5.