Tools
Convert Excel workbooks to CSV in your browser, with sheet, delimiter, and header controls.
Upload an Excel file to preview
This Excel to CSV Converter reads an .xlsx or .xls workbook, lists every sheet it contains, and previews the data before you export. Pick the sheet to convert, choose a comma, semicolon or tab delimiter, and mark whether the first row is a header. The file is parsed in your browser, and the CSV downloads with UTF-8 encoding so accented and non-English characters come out intact.
See all sheets in your workbook and convert any one you choose.
Choose comma, semicolon, or tab as your separator.
Works with both modern .xlsx and legacy .xls Excel formats.
All processing happens in your browser. Your data never leaves your device.
Click the upload area or drag in an .xlsx or .xls file.
If the workbook has more than one sheet, choose which one to convert.
Check the first rows in the preview table before exporting.
Pick comma, semicolon or tab, and mark whether row one is a header.
Click Download CSV to save the converted sheet to your device.
The workbook is read and converted entirely in your browser using JavaScript. Nothing is uploaded to a server, and closing the tab discards the file.
Free online tool to convert CSV files to Excel (XLSX) format. Features include data preview, auto encoding detection, custom sheet names. No signup required, 100% private.
Free online tool to format, beautify, and validate JSON. Features include syntax highlighting, minification, error detection, and customizable indentation. No signup required, 100% private - all processing happens in your browser.
Free online tool to encode and decode Base64. Supports text, files, and images. URL-safe encoding option. No signup required, 100% private - all processing happens in your browser.
Developed by MadMVP
Book a call to build your vision into reality