Google Sheets add-on
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
Only in A
3
Only in B
3
Changed
6
Matching
6
Order ID
Status
Amount
ORD-018
Pending → Paid
$420
ORD-021
Shipped
$125 → $148
ORD-026
Missing in B
$92
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.
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.