Is this a cell-by-cell Excel diff?

No. Rows are matched by the key column you select (SKU, ID, part number, and similar). That is the right model when exports reshuffle order. For grid position compares, use a cell-diff tool instead.

Does a changed row order count as a change?

No. If the same key has the same compared field values, the row is unchanged even when it moved to a different line number.

Do you recalculate Excel formulas?

No. The tool compares the values read from the file (cached/displayed values from the spreadsheet export). Macros, formatting, and formula audit are out of scope.

What happens with duplicate SKUs?

Duplicate keys are reported under Key issues. The first occurrence can still participate in matching; extras are not silently merged.

Are my files uploaded to a server?

No. Parsing and comparison run in your browser. Avoid closing the tab until you have downloaded any export you need.

Can I print new price tags from the differences?

Export the difference CSV, keep the rows you care about, then open Price Tag Maker or Excel to Labels with that list. This page stays focused on the compare step.

Free, privacy-first keyed Excel / CSV compare

Compare Excel Files by SKU or ID

Upload two spreadsheets, pick a match key, and see what was added, removed, or changed. Row order alone does not count as a change. Privacy-first: files are processed locally in this browser.

Compare files

Try sample catalogs

Best for price lists, inventory exports, and product catalogs where the same SKU may appear on different row numbers.

Compare Excel files by SKU or ID — free keyed spreadsheet diff

Browser-local Excel / CSV compare

Compare two spreadsheets by SKU or ID

Load a baseline and a current file, choose the match key, select columns to compare, then export added, removed, and changed rows as CSV.

Baseline (A)

Trusted / older export

Drop .xlsx / .csv or click to browse

Current (B)

Newer export to review

Drop .xlsx / .csv or click to browse

Match key & columns

Rows are aligned by the key you choose. Row order alone does not count as a change. Duplicate or empty keys are listed separately.

Match key

Trim keysIgnore key case

Columns to compare

Load both files to choose compare columns.

How it works

Three steps to a keyed Excel diff

This is not a cell-by-cell grid compare. Records are matched by the ID column you choose.

Upload baseline and current

Drop two .xlsx or .csv files. Pick the worksheet if a workbook has more than one sheet.

Choose the match key

Use SKU, part number, customer ID, or barcode. Map which columns to compare for changes.

Review and export

See added, removed, and changed fields with old vs new values. Download a difference CSV for your next step.

Common spreadsheet compare jobs

Use a keyed diff when the same entity can move to a different row between exports.

Supplier price lists

Spot new SKUs, discontinued items, and price changes before you update tags.

Inventory exports

Compare stock snapshots when ERP or POS exports reshuffle row order every time.

Customer or asset lists

Find who was added or removed between two mailing or asset roster exports.

What this Excel compare tool does

Designed for catalog and operations reviews — not full workbook auditing.

Keyed row matching

Align records by SKU or ID even when sort order and blank rows differ.

Duplicate key warnings

Repeated or empty keys are listed separately so you do not silently trust a bad match.

Local browser processing

Spreadsheets stay on your device. Close the tab and the rows are gone.

Exportable difference CSV

Download status, key, field, before, after, and approximate source row numbers.

Excel compare FAQ

Clear limits so you know when this tool fits — and when it does not.

Still have questions?

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Compare your next price list or inventory export

Load two files, match by SKU or ID, and download the difference CSV — without sending the spreadsheet through a server workflow.

Open compare tool

Start with the sample catalogs if you want to see added, removed, changed, and duplicate-key behavior first.

Compare Excel Files by SKU or ID — Free Online Excel Diff