Compare two tabs. See every difference.
Pick two sheets, choose a key column, click Compare. SheetDiff shows what's added, changed, and missing.
Free · No sign-up · Works inside Google Sheets
1. Pick two tabs
Select a key column like ID, email, or invoice number.
2. Compare
Get a color-coded report of every difference in seconds.
3. Reconcile
Review changes and write approved updates back safely.
Built for sheet comparison workflows
Use SheetDiff when you need to compare two Google Sheets tabs, find missing rows, review changed values, and reconcile spreadsheet versions without rebuilding lookup formulas every time.
Compare two sheets
Find what is only in one tab, what changed, and what still matches.
Google Sheets diff tool
Generate a clear spreadsheet diff report inside Google Sheets.
Reconcile sheets
Review differences and prepare approved updates before writing back.
VLOOKUP alternative
Compare tabs by key column without rebuilding lookup formulas.
Finance checks
Compare transaction exports and find missing or changed rows.
Duplicate review
Flag duplicate keys before matching, merging, or writing back.
Free includes
Diff report, key detection, 5 compares/day, up to 500 rows.
Pro — $29 one-time
Unlimited rows, side-by-side view, merge review, highlighting, CSV export, saved presets, duplicate resolution.
Stop scanning rows manually.
Install SheetDiff and run your first comparison in under a minute.