CKEditor 5CKEditor 5 is licensed under the terms of GNU General Public License Version 2 or later. If you are running an Open Source project with an OSS license incompatible with GPL please contact us and we will be happy to support your project with a CKEditor 5 license. CKEditor 4As announced in 2018, CKEditor 4 reached its End of Life (EOL) in June 2023. A special edition, CKEditor 4 LTS (Long