Compare Two Google Sheets — See Exactly What Changed
Works with Google Sheets, Excel, and CSV. No setup needed.
File A (original)
Drop file or click to upload
Excel, CSV, or Google Sheets • max 5,000 rows
File B (updated)
Drop file or click to upload
Excel, CSV, or Google Sheets • max 5,000 rows
Google Sheets has no compare feature
No built-in way to diff two sheets. Version history works within a single file, but can’t compare two separate spreadsheets.
Workarounds break at scale. VLOOKUP and conditional formatting work for small tables, but not hundreds of rows.
Most add-ons require broad access. Not ideal when comparing budgets, payroll, or anything sensitive.
How it works
Export your Google Sheets as .xlsx or .csv — or import directly with Google Sheets Picker.
Drop both files. Key column is auto-detected.
See every difference. Export to Excel or Google Sheets.
All processing happens in your browser
Files never leave your device. Nothing is uploaded.
Common use cases
Budget revisions
See which line items changed between months.
Price list updates
Find every price change from your supplier instantly.
Data migration checks
Verify nothing was lost when moving between systems.
Employee lists
Who joined, who left, what changed between HR exports.
Frequently asked questions
Does Google Sheets have a built-in compare feature?
No. It has version history for a single file, but no way to compare two separate spreadsheets.
Can I compare a Google Sheet to an Excel file?
Yes. Any combination of .xlsx, .csv, and Google Sheets exports works.
Do I need to install an add-on?
No. The web tool works without installation. A Sheets add-on for comparing tabs directly is coming soon.
ChangeCheck vs common workarounds
| ChangeCheck | Formulas | Other add-ons | |
|---|---|---|---|
| Setup time | None | 15–30 min | 5–10 min |
| Added/removed rows | Yes | Hard | Varies |
| Cross-format | Yes | No | No |
| Privacy | Client-side | In-sheet | Needs account access |
Or compare tabs without leaving Google Sheets
Read-only access only — your data stays in Google Sheets.
Coming soon to Google Workspace Marketplace
Sheets add-on
Compare two tabs in the same Google Sheet
Coming soon