I have long known about OpenRefine (previously Google Refine) which is a tool for working with data, manipulating and cleaning it. As of version 3.0 (May 2018), OpenRefine included a Wikidata extension, allowing for extra reconciliation and also editing of Wikidata directly (as far as I understand it). You can find some documentation on this topic on Wikidata itself.
This post serves as a summary of my initial experiences with OpenRefine, including some very basic reconciliation from a Wikidata Query Service SPARQL query, and making edits on Wikidata.
In order to follow along you should already know a little about what Wikidata is.
I tried out OpenRefine in two different setups both of which were easy to set up following the installation docs. The setups were on my actual machine and in a VM. For the VM I also had to use the
-i option to make the service listen on a different IP.
refine -i 172.23.111.140