OpenRefine

OpenRefine is a free, open source tool for working with messy data, available to anyone at no cost.

What it does

OpenRefine helps users clean and transform data from one format to another, and extend it with web services and external data.

It provides features such as faceting, clustering, and reconciliation to make data cleaning and transformation more efficient.

Key features

• Faceting: drill through large datasets using facets and apply operations on filtered views of your dataset
• Clustering: fix inconsistencies by merging similar values thanks to powerful heuristics
• Reconciliation: match your dataset to external databases via reconciliation services
• Infinite undo/redo: rewind to any previous state of your dataset and replay your operation history on a new version of it
• Wikibase: contribute to Wikidata, the free knowledge base anyone can edit, and other Wikibase instances
• Privacy: your data is cleaned on your machine, not in some dubious data laundering cloud

Who it's for

OpenRefine is for anyone who works with data, including researchers, data analysts, and scientists.

Pricing

Pricing isn't publicly listed, but OpenRefine is free and open source.