Go to File → Download in Google Sheets and save both versions as CSV or Excel. Then upload the original export on the left and the updated export on the right, and click Find Differences. Changed cells highlight in yellow, added rows in green, removed rows in red.
How to export from Google Sheets
Google Sheets does not provide direct browser-side access to sheet data, so this tool works with exported files. Exporting takes under 30 seconds:
- Open your Google Sheet.
- Go to File → Download.
- Choose Comma Separated Values (.csv) for the current sheet, or Microsoft Excel (.xlsx) to include all sheets.
- Save the file to your computer.
- Repeat for the second version of the sheet.
- Upload both files here and click Find Differences.
If you are comparing a specific sheet in a multi-sheet workbook exported as .xlsx, use the sheet tabs that appear below each panel to select the correct sheet on each side.
How to use this tool
This tool uses the same comparison engine as the Excel & CSV comparison tool - SheetJS runs entirely in your browser to parse the exported files, so nothing is uploaded to any server. Drop each exported file into its panel and click Find Differences.
Yellow cells changed, green rows were added, red rows were removed. The summary bar shows the total counts. Use Copy Diff to copy the full result as tab-separated text.
Use cases
Collaborative spreadsheet auditing
When multiple people have access to a Google Sheet, comparing two snapshots (exported at different times) shows exactly what changed and when. This is useful for auditing data entry, catching accidental deletions, or reviewing changes made by collaborators.
Budget and forecast tracking
Export a budget spreadsheet at the start and end of a period to see every cell that changed - useful for identifying which line items were revised, which were added, and which were removed between planning rounds.
Shared dataset reconciliation
When two teams maintain separate copies of a shared dataset in Google Sheets, exporting both and comparing them reveals every discrepancy - missing rows, conflicting values, or formatting-driven differences that text comparison would miss.
FAQs
Does this connect to my Google account?
No. The tool works with exported files only. No Google login, OAuth, or API access is required. Your sheet data never leaves your device.
Can I compare sheets from the same workbook?
Yes. Export the workbook as .xlsx, upload it on both sides, then use the sheet tabs below each preview to select different sheets for comparison.
What if the sheets have different column orders?
The tool compares columns positionally (column A vs column A). If your sheets have different column orders, sort or reorder the columns to match before exporting, or compare the CSV text directly using the Diff Checker.