Ckeditor 5 License Key __link__ -
CKEditor 5 is dual-licensed, requiring a valid license key for both commercial use and open-source projects . Starting with version 44.0.0 licenseKey property is mandatory in the editor configuration. 1. Types of License Keys
Depending on your project's environment and needs, different keys are available: Production License Key
: Provides unrestricted access to all subscribed features for live end-users. On cloud-hosted plans, these keys track and consume "editor loads". Development License Key
: Intended for local work, CI/CD, and testing. These keys are restricted to specific domains like and display a "development" banner. Trial License Key ckeditor 5 license key
: A 14-day evaluation key that grants access to all premium features. It is not authorized for production and may have functional limitations on session time. GPL License Key
: For open-source projects compliant with the GPL 2+ license, the value must be entered into the licenseKey 2. Pricing and Plans
Commercial plans are categorized by the number of editor loads and distribution methods: Monthly Editor Loads Monthly Price (Approx.) Support Level Free Commercial Starting at $45 Professional (2 requests) Professional Starting at $30 Professional (4 requests) Enterprise/LTS Contact Sales Dedicated Enterprise CKEditor 5 is dual-licensed, requiring a valid license
Note: Overage for usage-based plans typically ranges from $30 to $60 per 1,000 additional loads depending on the tier. License key and activation | CKEditor 5 Documentation
5. Test without a key in CI/CD pipelines
For automated tests, you can omit the key if you are not testing premium features. But for end-to-end tests that involve, say, the PDF export button, you need a valid key.
What If You Don’t Provide a Key?
CKEditor 5 will still work for free, open-source features. However: What If You Don’t Provide a Key
- Console warnings will appear (visible in dev tools).
- Premium features will be disabled or show watermarks.
- You may violate the license terms if using the editor in a closed-source commercial product.
Error: "License key not found" or "Invalid license key"
- Cause: Typo in the key string, extra spaces, or using an expired key.
- Solution: Copy-paste the exact key from your dashboard. Check your subscription expiration date.
Part 5: Common Errors and Troubleshooting
Even with a valid key, you might encounter issues. Here are the most frequent problems:
Q2: Does the license key phone home?
Yes, but only for validation. CKEditor 5 checks the license key against CKEditor's servers occasionally. It does not send your user data or content—only the key and the domain. This verification can be disabled for offline environments via the verifyLicense: false config (though you must ensure compliance).
Part 5: Common CKEditor 5 License Key Errors (& How to Fix Them)
Even with the correct key, things can go wrong. Here are the most frequent issues: