Guide

How to Rename CSV Column Headers

By FinancialDataTools.com Team  ·  March 2026  ·  8 min read  ·  Last updated March 18, 2026

✏️ Open the CSV Column Renamer to try every feature described in this guide.

Open CSV Column Renamer →

What Is the CSV Column Renamer?

The CSV Column Renamer lets you edit the header row of a CSV file without touching any data rows. Upload a file, type new names for any or all headers, and export the result. All processing is browser-based.

Try the CSV Column Renamer — free, private, no install.

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When to Use It

Privacy

Your files are never uploaded anywhere. All processing happens locally in your browser tab.

For a step-by-step walkthrough see the CSV Column Renamer tutorial.

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