Office & Data Tools

Convert between Excel, CSV and JSON spreadsheet and data formats entirely in your browser, with nothing uploaded. Free to use, no signup needed.

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CSV to Excel Converter

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Convert a CSV file to an Excel (.xlsx) spreadsheet in your browser. No upload required.

Excel to CSV Converter

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Convert an Excel (.xlsx/.xls) spreadsheet to CSV in your browser. No upload required.

Excel to JSON Converter

Convert an Excel (.xlsx/.xls) spreadsheet to JSON in your browser. No upload required.

JSON to Excel Converter

Convert a JSON array of objects to an Excel (.xlsx) spreadsheet in your browser. No upload required.
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