Change Header Case
Switch headers between camelCase, snake_case, kebab-case, and more
CSV Input
Try a sample:
Drop a CSV file here or
Only the first file is used if multiple are dropped.
The request is made directly from your browser. No proxy is used.
Case Format
Example: "First Name" → first_name
CSV Output
CSV with reformatted headers will appear here...
More Options
CSV Format
Input
How to Use This Tool
Convert your CSV column headers to a different case format. Choose from UPPER CASE, lower case, Sentence case, Proper Case, camelCase, snake_case, or kebab-case. Only the header row is affected — all data rows remain unchanged.
- 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.
- Choose a case format — Select the target case from the options panel.
- Get your output — Copy the CSV with reformatted headers to your clipboard or save it as a .csv file.
FAQ
3 questionsDoes this tool upload my data?
No. It runs entirely in your browser using JavaScript. Your CSV data is never sent to a server.
What case formats are supported?
UPPER CASE, lower case, Sentence case, Proper Case, camelCase, snake_case, and kebab-case.
Does this change the data rows?
No. Only the header row is modified. All data rows remain exactly as they are.