WorkbookDiff
Free in-browser Excel & CSV tools: compare, CSV/Excel to JSON, JSON to Excel, merge, split.
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About WorkbookDiff
WorkbookDiff is a set of free browser-based spreadsheet tools. Compare two Excel files cell by cell, convert CSV or Excel to JSON, convert JSON to Excel, merge workbooks and split large Excel files into ZIP. Files are processed locally in your browser and never uploaded.