CSV Tools

Convert CSV to Fixed Width

Convert CSV data into fixed-width column format

CSV Input

Try a sample:

Fixed Width

Fixed-width output will appear here...

Options

CSV Format

Fixed Width Output

How to Use This Tool

This tool converts CSV data into fixed-width column format directly in your browser. No data is uploaded or sent to any server.

You can provide CSV input in three ways: paste it directly, upload a file, or fetch it from a URL. The fixed-width output updates in real time as you make changes.

  1. Provide your CSV — Paste CSV text into the input area, drop a CSV file onto the File tab, or enter a URL on the URL tab to fetch remote data.
  2. Configure options — Open the Options panel to adjust CSV parsing settings (delimiter, quote character, headers) and set the separation character between columns.
  3. Get your output — Copy the fixed-width text to your clipboard or save it as a .txt file using the buttons above the output preview.

FAQ

4 questions
Does this CSV to Fixed Width converter upload my data?
No. All conversion happens entirely in your browser using JavaScript. Your CSV data never leaves your device — no server receives, stores, or processes it.
How are column widths determined?
Each column is automatically sized to fit its longest value. All values are left-aligned and padded with spaces on the right to match the column width.
Can I change the character between columns?
Yes. Use the Separation character setting in the Options panel. It defaults to a single space, but you can use any character or string.
What if my CSV has no headers?
Uncheck 'Use headers' in the Options panel. All rows will be treated as data and formatted to fixed-width columns.

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