Contact us


If you are a licensed user of one of CKSource products and require technical support, please use your token number provided in our purchase confirmation e‑mail. Otherwise, please leave your question on Stack Overflow. Most support questions can be answered by visiting our Support page.

If you believe you have found a bug, or have a feature request, please fill in a request at corresponding GitHub issue tracker: CKEditor or CKFinder.

Looking for a license?

If you require a license with standard support, visit each product’s page for more details. If your project requires custom solutions, e-mail our Sales department using the form on the left or call us:

Toll-free (US/CAN): +1 800 643 7519 Internationally: +1 650 353 3268

Working hours: 1am-3pm PST, 4am-6pm EST, 10am-12am CET

If you have trouble reaching us over the phone, please leave your contact details using the contact form. We will contact you as soon as possible.


CKSource sp. z o.o. sp.k.

ul. Slominskiego 15/508

00-195 Warsaw

Poland, Europe
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