[adrianbr]

dlt is a python library that you can probably plug into the OpenRefine java application to enable moving the data somewhere easily and into different formats, making OpenRefine more useful in a connected environment.

I would not say they are similar - rather OpenRefine is made for visual data cleaning, while dlt is made for automation of data movement with structuring and typing to enable crossing different format standards with ease.

Together you should have a good combination of automation and manual tweaking option if needed.