Google Sheets comparison

Compare two sheets in Google Sheets

SheetDiff compares two tabs in the same spreadsheet by a key column, then shows rows only in A, rows only in B, changed rows, and matching rows.

When to use it

Use SheetDiff when you have two versions of the same data in Google Sheets and need to find differences without writing VLOOKUP, XLOOKUP, INDEX MATCH, or conditional formatting formulas again.

How the comparison works

Pick the original tab, pick the tab to compare against, and choose a key column such as invoice number, order ID, SKU, email, employee ID, or customer ID. SheetDiff matches rows by that key and builds a report of missing rows, changed values, and matches.

What you get

The add-on creates a SheetDiff Report tab in your spreadsheet. The report groups differences so you can quickly answer: what is only in the first sheet, what is only in the second sheet, and which fields changed.

Install from Marketplace Reconcile Sheets