Upload two files.
See what matches and what doesn't.
Stop wasting hours on VLOOKUP gymnastics. SheetPair compares your CSV or Excel files row by row and tells you exactly what matched, what's different, and what's missing. Right in your browser.
Free for files up to 1,000 rows. No signup required.
What you'll see
Results in seconds, not hours
Instant matching
Upload two files and see matched rows, differences, and missing records in seconds.
Cell-level diffs
Every difference is highlighted at the field level so you can spot exactly what changed.
One-click export
Download results as CSV or Excel — filtered by matched, diffs, or unmatched.
How it works
Three steps. That's it.
Upload two files
Drop your CSV or Excel files. Your data stays in your browser — nothing gets uploaded to a server.
Map your columns
Tell SheetPair which columns to match on (like Invoice # or Account ID) and which to compare (like Amount or Date).
Review the results
See matched rows, differences, and missing records instantly. Export the results to CSV or Excel.
Use cases
Built for people who compare spreadsheets
Bank reconciliation
Compare your internal ledger against bank statements. SheetPair matches transactions by reference number or amount and flags discrepancies \u2014 missing deposits, duplicate charges, amount mismatches. What used to take an afternoon now takes minutes.
ledger.csv vs. bank_statement.csv
847 matched · 12 differences · 3 unmatched
Invoice matching
Cross-reference vendor invoices against purchase orders. Catch overbilling, duplicate invoices, and missing line items before they become problems.
Inventory audits
Compare physical count sheets against your inventory system. Find discrepancies fast, whether it's a warehouse with 50 SKUs or 50,000.
Your data never leaves your browser
SheetPair processes files entirely on your device using Web Workers. Your spreadsheets are never uploaded to our servers, never stored in a database, and never seen by anyone but you. Close the tab and the data is gone.
For files over 50K rows that need server-side processing, data is encrypted in transit and auto-deleted within 24 hours.
Done reading? Try it.
Upload two files and get results in seconds. No signup, no credit card, no catch. Free for files up to 1,000 rows.