📊 Excel File Comparator SheetJS

100% local Excel diff tool. Highlights modified, added, and removed cells safely in your browser.

📁 File 1 (Old / Baseline)

Click or drag Excel file here

.xlsx, .xls, .csv

📂 File 2 (New / Target)

Click or drag Excel file here

.xlsx, .xls, .csv

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100% local tool. Compare two files and highlight modified cells.

🛡️ Privacy Guarantee: The core processing logic executes entirely locally in your browser. We never log, collect, or upload your private data.