Compare two spreadsheets, cell by cell

Load a CSV or XLSX file into each side, pick the column that identifies a row, and see every added, removed and changed cell.

File A · original

Drop a CSV or XLSX file here, or click to browse

File B · updated

Drop a CSV or XLSX file here, or click to browse

All file data is read entirely within this browser tab. Nothing is uploaded to any server. Closing this tab discards all loaded data.