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Excel to CSV Converter

Free Excel to CSV converter — upload an .xlsx/.xls file and get CSV, entirely in your browser. Nothing is uploaded.

Learn more: CSV Files ExplainedThe CSV format, RFC 4180 quoting rules, encodings, common pitfalls, and how CSV compares to TSV, JSON and Parquet.

Choose a file.xlsx,.xls — read locally, nothing uploaded

CSV output

Runs entirely in your browser — nothing you enter is uploaded or stored.

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Excel to CSV Converter

Free Excel to CSV converter — upload an .xlsx/.xls file and get CSV, entirely in your browser. Nothing is uploaded.

All processing happens locally in your browser — your file never leaves the page, which you can confirm from the Network panel or our privacy policy.

Frequently asked questions

How do I use the Excel to CSV Converter?

Choose your file — it is read and converted in your browser, and the CSV appears below to copy or download. Nothing is uploaded.

Is my file uploaded anywhere?

No. The conversion runs entirely in your browser using a library loaded on demand — your file never leaves your device.

Is the Excel to CSV Converter free?

Yes — completely free, no sign-up and no limits.

Excel to CSV Converter

Frequently asked questions

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