Compare software

OpenRefine vs Tableau Prep: catalog facts
OpenRefine	Tableau Prep
Free Free and open source.	Paid Commercial product with a free trial.
macOS	macOS, Web
Faceting and clustering to find and fix inconsistent values Reconciliation against external databases and Wikidata	Visual flow showing every cleaning step Over 100 built-in data connectors
Not a spreadsheet or database; aimed at batch cleanup Learning curve for facets and transformation expressions	Paid after the trial Most useful alongside other Tableau products
Downloadable app	Downloadable app, Hosted service
Open source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.