(macOS) to view your 10-digit serial number, which support can use to verify your license. 4. Consider Free Alternatives
: 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. endnote x6 product key free free
: The trial is currently offered for the latest version, EndNote 2025 , rather than the older X6 version. 2. EndNote Online (Free Version) (macOS) to view your 10-digit serial number, which
It is not possible to legally obtain a free product key for EndNote X6 An X6 key will not work for newer versions, and vice-versa
There are several official ways to use EndNote without purchasing a full commercial license immediately:
Storing PDFs and references in a searchable library.
: Introduced 5GB of cloud backup via EndNote Sync (though these legacy sync services may now be unsupported).