If your project is open source and compatible with GPL, or if you are just developing locally/learning:
If you load CKEditor via CDN, add this before the editor script:
If you are strictly using the version and haven't included any premium plugins in your build, you do not need a license key. However, ensure your project's legal terms comply with the GPL. ckeditor 5 license key
Yes, unless you've enabled the approved hosts whitelisting feature. Production keys without whitelisting have no domain restrictions. With whitelisting enabled, the key is locked to specified domains.
Includes Approved Hosts Whitelisting to prevent unauthorized use of your production key. com/ckeditor-5/builder/">CKEditor 5 Builder ? License key and activation | CKEditor 5 Documentation If your project is open source and compatible
The production license key is what you'll use when your application is live. It functions without any operational limitations. For usage-based billing plans, each editor load counts toward your monthly limit; for custom plans without usage-based billing, no consumption tracking applies.
Once you have your key, you must pass it into the editor's configuration object during initialization. If you do not provide a valid key while using commercial plugins, a watermark or console warning will appear. Vanilla JavaScript Implementation javascript com/ckeditor-5/builder/">CKEditor 5 Builder
Notable legal/compatibility points
| Feature | Details | |---------|---------| | | Opt-in; production keys have no restrictions by default | | Maximum entries | Up to 5 domains or IP addresses | | Wildcard support | *.example.com (subdomains) or 192.168.*.* (IP ranges) | | Key recreation | A new key is automatically created when you update the whitelist |
Understanding CKEditor 5 License Keys: A Complete Guide If you are integrating a modern rich-text editor into your application, you’ve likely come across . It is one of the most powerful WYSIWYG editors available today, but its licensing model can be a bit confusing for newcomers.
CKEditor 5 operates under a dual-licensing model. Choosing the right path depends on your project goals, distribution model, and required feature set. Open-Source Licensing (GPLv2+)