Delete CSV Columns
Remove selected columns by index or name.
Input CSV
Options
Output CSV
What It Does
Remove columns you no longer need.
Common Use Cases
- Strip sensitive columns before sharing
- Reduce CSV width for downloads
- Clean up exports for analysis
How to Use
- Paste CSV into the input panel
- List columns (indexes or headers) to remove
- Copy the cleaned CSV output
Features
- Index or header-based selection
- Delimiter and comment controls
- Optional empty row skipping
Examples
Below is a representative input and output so you can see the transformation clearly.
name,age,city Ada,36,London Lin,29,Berlin
name,city Ada,London Lin,Berlin
Edge Cases
- Very large inputs may take a few seconds to process in the browser. If performance slows, split the input into smaller batches.
- Mixed formatting (tabs, line breaks, or inconsistent delimiters) can affect output. Normalize spacing first if needed.
- Delete CSV Columns follows the selected options strictly. If the output looks unexpected, re-check option settings and input format.
Troubleshooting
- Output looks unchanged: confirm the input contains the pattern this tool modifies and that the correct options are selected.
- Unexpected characters: check for hidden whitespace or encoding issues in the input and try normalizing first.
- Slow processing: reduce input size or try a modern browser with more available memory.
Frequently Asked Questions
Is my input stored or logged?
No. This tool is designed to run in your browser, and we do not store or log your content during processing.
Is conversion instant?
Yes for most inputs. Output updates immediately, and large inputs may take a moment depending on your device.
Can this handle large text?
It can handle large text, but performance depends on your browser and device. For very large files, consider splitting the input.
Does it support mobile?
Yes. The interface is responsive and works on phones and tablets, so you can use it on the go.
Can I use it for commercial projects?
Yes. You are free to use the output in personal or commercial projects without attribution.
Does this affect numbers or punctuation?
Only if the selected options target them. Otherwise, numbers and punctuation are preserved as-is.