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CSV Formatter

Your data never leaves your device

How to Use

  1. 1. Add your CSV — Upload a file or paste CSV text directly.
  2. 2. Configure options — Choose delimiter, whitespace trimming, and other fixes.
  3. 3. Format — Click Format to apply all selected fixes.
  4. 4. Download or copy — Get your cleaned CSV as a file or clipboard text.

Frequently Asked Questions

Is my data safe?
Yes. All formatting happens in your browser. Your CSV data never leaves your device.
What does "Fix quoting" do?
It ensures all fields that contain delimiters, newlines, or quotes are properly enclosed in double quotes according to the CSV standard (RFC 4180).
Can I change the delimiter?
Yes. Upload a CSV with any delimiter (auto-detected) and output it with your choice of comma, semicolon, tab, or pipe.
What is BOM and why remove it?
BOM (Byte Order Mark) is an invisible character at the start of some files. It can cause issues with CSV parsers and data tools. Removing it ensures compatibility.