OpenRefine is a powerful, free open source tool designed specifically for cleaning and organizing your data with features for fixing errors, data normalization, transforming your data, and tracking your operations.
This guide is created using OpenRefine 3.2.
OpenRefine will automatically run in your default browser and works best in Chrome and Firefox. OpenRefine does not require an internet connection.
If OpenRefine is running, you can also point your browser to http://127.0.0.1:3333. You can use OpenRefine in several browser tabs and windows.