Is Excel to CSV Converter free to use?

Yes, Excel to CSV Converter is completely free. No account, no sign-up, and no hidden fees required.

Is my data safe when using Excel to CSV Converter?

Your data never leaves your device. All processing happens locally in your browser — nothing is uploaded to any server.

Data & Spreadsheet

Convert XLSX and XLS Excel files to CSV format — no upload, runs in your browser via SheetJS

Trusted by 10k+ developers

Drop an Excel file here or click to upload

Supports .xlsx, .xls, .ods

• Uses SheetJS (xlsx) to parse Excel files entirely in your browser — no upload to any server.
• All sheets are converted — you can pick which one to download, or download all at once.
• Supports .xlsx, .xls, and .ods formats.

View, sort, filter, and inspect CSV files as an interactive table — all in your browser

Render JSON arrays of objects as a sortable, searchable HTML table with column filtering

Pick specific columns from a CSV file and download the result — great for cleaning large datasets

Run SQL SELECT queries directly on uploaded CSV files — no server needed

Merge multiple CSV files into one — reorder, deduplicate rows, and handle headers automatically

Generate realistic fake data — names, emails, addresses, UUIDs, dates, and custom fields — and export as JSON, CSV, or SQL INSERT statements

Split a large CSV file into smaller files by row count or by unique values in a column

Convert JSON arrays of objects to Excel (.xlsx) or CSV — powered by SheetJS, runs in your browser

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