OpenRefine

date: '2017-07-21T16:56:12+10:00'

OpenRefine (formerly Google Refine) is a powerful tool for working with messy data: cleaning it; transforming it from one format into another; and extending it with web services and external data.

Importantly, OpenRefine also includes an array of plugins that helps users sort out data, then update it and work with data in an RDF format