How we handle your data

Your lists

The comparison happens locally in your browser. Closing or refreshing the page clears the lists and results from this tool.

Analytics

When analytics is enabled, it receives only aggregate integers such as list sizes and near-match counts, and a small set of fixed action labels such as which result column was copied. It never receives any text from your lists.

Analytics helps us understand whether the tool works as intended. It cannot be used to reconstruct a list.

Storage and tracking