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Compare two CSV or Excel files side by side. Highlight added, removed, and changed rows. 100% free, processed in your browser.
Upload the original file and the updated file. Supports CSV and Excel formats.
Choose which column to use as the unique key for matching rows between the two files.
Added rows are highlighted in green, removed rows in red, and changed cells in yellow. Download the diff report.
Yes, 100% free with no sign-up or hidden costs.
CSV (.csv, .tsv) and Excel (.xlsx) files are supported.
All processing happens locally in your browser. Nothing is uploaded to any server.
Yes. Columns are matched by header name, regardless of their position in each file.
Yes. You can download the diff report as a CSV file with status indicators for each row.