Instantly identify added, deleted, and modified rows or columns in Excel and CSV files. See exactly what changed between versions with our Myers diff algorithm.
Try It Now - FreeCompare your spreadsheets in three simple steps and get instant visual results
Select your baseline file
Choose the updated version
See changes highlighted
Upload your Excel or CSV files below to see the differences
A powerful, privacy-focused spreadsheet comparison tool that works entirely in your browser
Uses the same Myers diff algorithm trusted by developers worldwide. See added (+), deleted (-), and unchanged rows or columns with precision highlighting.
All processing happens locally in your browser. Your files never leave your device. No uploads, no cloud storage, no data retention.
Compare large spreadsheets in seconds. No waiting for server processing. Works offline after first load.
Works with .xlsx, .xls, and .csv files. Automatically detects file format and handles different encodings.
Toggle between row-by-row and column-by-column comparison modes. Perfect for different types of data analysis.
No sign-up required. No usage limits. No premium features hidden behind paywalls. Completely free to use.
Trusted by professionals across industries for accurate spreadsheet comparison
Track changes in financial reports, sales data, and business metrics between reporting periods.
Verify data integrity, audit spreadsheet changes, and reconcile discrepancies in financial statements.
Compare datasets before and after transformations, validate data migrations, and ensure accuracy.
Diff test data, compare configuration files, and validate data exports from databases or APIs.
Track changes in project schedules, budgets, and resource allocations across versions.
Compare experimental results, validate data collection, and track changes in research datasets.
SheetDiff solves real-world problems across diverse workflows
Track changes between versions of your Excel files. See exactly what was added, removed, or modified, just like git diff for code.
Verify that data was correctly migrated from one system to another. Quickly identify missing or corrupted records.
Compare expected vs. actual test results. Validate that data exports match specifications and requirements.
Reconcile financial statements, identify discrepancies in accounting records, and audit spreadsheet changes.
Compare database exports over time. Identify new records, deleted entries, and track database changes.
Review changes made by team members. See who added or removed what data in shared spreadsheets.
Compare inventory lists over time. Track additions, removals, and changes to product catalogs or stock levels.
Maintain audit trails for regulatory compliance. Document and verify all changes to critical business data.
Start comparing Excel and CSV files in seconds - no signup required
Try SheetDiff Now