CKEditor 4 and CKEditor 5 are distributed under three copyleft Open Source license options: GPL, LGPL and MPL.
If you need more flexibility you can purchase a license that allows special license terms and a dedicated support. For details on commercial licenses please visit the pricing pages of CKEditor 4 and CKEditor 5. If you wish to use CKEditor in SaaS products / OEM / applications, please contact us for a quote.
We operate in a subscription-based licensing model with monthly payments.