Drop two CSV files and get a clear diff — which rows were added, removed and changed, down to the cell. Match by a key column (like id) or by row position. Everything stays in your browser.
Comparing two exports in a spreadsheet is painful. Drop both here, pick a key column, and get a row-by-row diff: additions, removals and the exact cells that changed.
Dataset A and Dataset B — CSV or Excel. Each is parsed locally.
By a shared key column (recommended) or by row position if there's no stable key.
Added, removed and changed rows are color-coded, with changed cells shown as old → new.
Cell-level differences between two files, the moment both are loaded.
Match on a column like id for a true record diff, or by row order when there's no key.
Changed rows show exactly which columns changed and their old → new values.
Rows only in B (added) and only in A (removed) are listed and counted separately.
Both files are compared in your browser. Nothing is uploaded.