tools · csv converter

CSV → Excel · JSON

Drop a CSV. Download Excel or JSON. Nothing leaves your browser.

Drop your CSV here

or click to browse

When to convert CSV to Excel or JSON

Excel for stakeholders

Accountants and managers prefer Excel. Our .xls opens in Microsoft Excel, Apple Numbers, and LibreOffice without plugins.

JSON for developers

APIs, databases, and scripts consume JSON natively. Convert once, import everywhere.

CSV for universal compat

Sometimes you just need a clean, standards-compliant CSV with proper quoting and consistent delimiters.

Privacy-first by design

Your CSV may contain personal or financial data. The entire conversion happens inside your browser — nothing is uploaded to a server. No account, no tracking, no data retention.

No upload No storage No login required

Frequently asked questions

Is there a row limit?

No. Because everything runs in your browser, the only limit is your device's memory. We've tested with CSVs containing over 100,000 rows.

What encoding is supported?

UTF-8 is preferred. The parser will also handle Windows-1252 and ISO-8859-1 in most cases.

Does it handle quoted fields and commas inside cells?

Yes. The parser follows RFC 4180-style rules: quoted fields can contain commas and line breaks, and double-quotes are escaped correctly.

Can I convert back from Excel to CSV?

Use our CSV Cleaner tool — it can re-export any CSV into a perfectly clean, normalized CSV file.

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