Compare two datasets, column by column.

Compare a reference dataset and a second dataset, e.g. last year's annual release versus this year's. field-match checks the column names and the values inside them, then reports what is verified, renamed, suspect, dropped, or added.

Reference

Reference dataset

CSV, Excel, Parquet, JSON, Stata, or fixed-width — click or drag here

Matched to the reference

Second dataset

CSV, Excel, Parquet, JSON, Stata, or fixed-width — click or drag here

Match threshold 0.50 higher = fewer, more confident matches Weight on names vs. contents 0.40 left = trust the values, right = trust the column names

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Report

Crosswalk

verified review (renamed, suspect) unmatched (dropped, added) suspect

All candidates considered

Reference column	Candidate in second dataset	Type	Name score	Content score	Combined