Rename column headers in your CSV files in seconds. Everything runs in your browser � your data never leaves your device.
Edit the header names below. Changes apply when you click "Apply Changes".
Renamed CSV will appear here...Load CSV and edit headers to see output
Three simple steps to rename your CSV headers.
Paste your CSV data directly or upload a file. The tool automatically detects columns and displays their headers.
Type new names into the editable input fields for each column header. Preview your changes in real time.
Click "Apply Changes" to see your renamed CSV. Copy to clipboard or download as a file when ready.
A CSV Header Editor is a utility that lets you rename the column headers (the first row) of a CSV file. CSV files use simple comma-separated text, but when column names are cryptic, inconsistent, or poorly formatted, manually editing them can be tedious and error-prone.
This tool lets you rename headers by typing directly into editable input fields for each column, making it easy to standardize or clean up your CSV files. Whether you're preparing data for import, sharing with colleagues, or cleaning up exports, this tool handles it all.
Standardize naming
Rename cryptic or inconsistent headers to clear, readable names.
Remove spaces or special chars
Clean up headers with unwanted spaces, quotes, or special characters.
Match API or database requirements
Ensure column names match the format required by your target system.
Localize column names
Translate or adapt headers for different audiences or regions.
Paste or upload your CSV, and the tool will display each column header as an editable input field. Type your new header name into each field, click "Apply Changes", and the output will show your CSV with the renamed headers.
Yes. You can edit all header fields at once. Simply type a new name in any or all fields, then click "Apply Changes" to rename them all simultaneously.
No. Only the header row (the first row) is modified. All data rows remain exactly as they were. The tool preserves row and column integrity across the entire file.
Yes. The header editor lets you rename, reorder, and standardize multiple headers in one operation. You can also remove duplicate headers and clean up special characters.
For a complete CSV workflow, explore our other free tools:
All processing happens in your browser. Your data never leaves your device.