You might also be interested in recline.js (http://okfnlabs.org/recline/ http://okfnlabs.org/recline/), a fork of Google refine, initially created by @maxogden,

You might also be interested in recline.js (http://okfnlabs.org/recline/ http://okfnlabs.org/recline/), a fork of Google refine, initially created by @maxogden, now maintained by the Open Knowledge Foundation (okfn). How their data processing features differ from openRefine is not clear to me though...