CSV Header Renamer
Rename one or more CSV headers using a simple mapping format.
What this tool helps you do
This tool renames one or more CSV headers using a simple mapping format. It is useful when you need to standardize column names before importing data into another tool or workflow.
Common use cases
Part of these categories
Related guide
How to Rename CSV Headers
Learn how to rename CSV headers to standardize field names before sharing, importing, or cleaning your dataset.
What this tool does
This tool renames one or more CSV headers using a simple mapping format. It is useful when you need to standardize column names before importing data into another tool or workflow.
How to use it
- Upload your CSV file.
- Enter the header changes using this format: oldName=newName.
- Use commas to separate multiple changes.
- Click the "Run tool" button and download the updated CSV.
Example
Input:
name,age,country Maca,30,Brasil Ana,25,Chile Jose,28,Peru
Output:
full_name,age,location Maca,30,Brasil Ana,25,Chile Jose,28,Peru
Common use cases
- Standardize column names before import.
- Rename technical headers to simpler labels.
- Prepare CSV files for clients or reports.
- Adapt exported files to another system format.
Important notes
- Use this format: oldName=newName.
- Separate multiple changes with commas.
- Headers that are not renamed remain unchanged.
FAQ
How do I rename multiple headers?
Use commas to separate each mapping. Example: name=full_name,country=location.
Do I need to rename every column?
No. You can rename only the columns you want to change.
What happens if a header does not exist?
The tool will show an error and stop until you use valid header names.