CSV Header Editor
Edit column headers in CSV files
Drop your file here or click to upload
Supports CSV, TSV, TXT files up to 100MB
How to Convert
- Upload your CSV
- Edit header names
- Download with new headers
Features
- Rename headers
- Add headers to headerless files
- Bulk rename patterns
Use Cases
- Fix column names
- Standardize headers for imports
Frequently Asked Questions
Is CSV Header Editor free to use?
Yes, completely free with no limits. No signup or download required.
Is my data private when using CSV Header Editor?
Absolutely. All processing happens in your browser. Your data never leaves your device.
Can I add headers to a CSV that has none?
Yes, you can add a new header row or edit existing headers. Changes are applied instantly.