CSV Converter — Convert CSV Files Online Free

Convert CSV files to and from 50 formats. Free online CSV converter with no signup required.

Quick Answer

ChangeThisFile supports 50 conversion routes involving CSV files — 21 conversions from CSV and 29 conversions to CSV. All conversions are free with no signup required.

CSV Format Details

Full NameComma-Separated Values
DeveloperVarious / RFC 4180
Year Introduced1972
MIME Typetext/csv
File Extension.csv
Typical File Size1KB - 100MB
Max Supported SizeNo limit (browser)
Open StandardYes (RFC 4180)

Convert From CSV

21 formats you can convert CSV files to

Convert To CSV

29 formats you can convert to CSV

Frequently Asked Questions

CSV (Comma-Separated Values) is a plain text file format that stores tabular data. Each line represents a row, and values are separated by commas. CSV is the most universal data exchange format, supported by every spreadsheet application and programming language.

Go to the CSV to XLSX converter page and drop your CSV file. The conversion runs in your browser using SheetJS — your data never leaves your device. The result is a properly formatted Excel workbook.

Yes. The CSV to JSON converter turns each row into a JSON object using the header row as keys. The conversion runs in your browser for complete privacy.

Yes. The converter correctly handles quoted fields, escaped commas within quotes, double-quoted values, multi-line fields, and various delimiter styles.

Yes. Go to the XLSX to CSV converter page. The conversion extracts the first sheet of your Excel workbook as a CSV file, all within your browser.

Yes. All CSV conversions run entirely in your browser using JavaScript (PapaParse and SheetJS). Your data files are never uploaded to any server.

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