Even if you find a working key, you won’t receive security patches or compatibility fixes for newer operating systems (EndNote X6 is not officially supported on macOS Ventura or Windows 11).
: You can sign up for a free account at Clarivate . 3. Try the 30-Day Free Trial
: Product keys are version-specific. An X6 key will not work for newer versions, and vice-versa. If you previously owned X6 but lost your key, you may be able to retrieve it by contacting Clarivate Support with proof of purchase.
: Available for free to users at institutions with specific Clarivate database subscriptions. 2. Institutional and Student Access
Some researchers sell their perpetual licenses when they retire or switch software. Check legitimate marketplaces like eBay, but ensure the seller transfers the license registration officially through Clarivate. Avoid any listing offering just a “key” without transfer documentation.
If you're looking for ways to access EndNote or similar software without spending money, consider the following: