WikiBlame is an independent online tool that is able to find the authors of good, questionable, or even dangerous (e.g. copyrighted) passages of a page in any wiki of any language version on any project of the Wikimedia Foundation (WMF). This could be useful if or when asking users about their contributions, or in order to fulfil the terms and conditions of GNU Free Documentation License (GFDL) or Creative Commons Attribution-ShareAlike license (CC-BY-SA) when copying parts of a page (particularly when released under an unknown or incompatible license).

WikiBlame integrated into the English Wikipedia, (En.Wp, December 2012, CC-BY-SA 3.0)

This tool is directly integrated into the English Wikipedia (En.Wp), and is linked into the revision history of every article.

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