CSV Swap Columns
Swap two columns in CSV data by specifying their positions. Runs entirely in your browser.
How does CSV column swapping work?
You specify two column positions (using 1-based indexing), and the tool swaps all values between those columns across every row in your CSV data.
What happens if a column position is out of range?
If a row doesn't have the specified column, that row remains unchanged. The tool only swaps columns that exist in each row.
Is my CSV data safe with this tool?
Yes, completely safe. All processing happens locally in your browser. Your data is never uploaded to any server.
Can I swap more than two columns at once?
No, this tool swaps exactly two columns at a time. For multiple swaps, you can run the tool multiple times or use a more advanced CSV editor.
Does this tool work with different CSV delimiters?
Yes, you can specify any delimiter (comma, semicolon, tab, pipe, etc.) to match your CSV format.
What is CSV format?
CSV (Comma-Separated Values) is a plain text format for storing tabular data. Each line represents a row, and values are separated by delimiters (usually commas).
Can I swap non-adjacent columns?
Yes, you can swap any two columns regardless of whether they are adjacent or far apart in the CSV structure.
Does the tool preserve the header row?
Yes, if your header is in the first row and you include it in the swap, it will be swapped along with the data. You can exclude the header by starting your data from row 2.
What if my CSV has quoted fields with commas?
The tool uses simple delimiter-based splitting. For complex CSV with quoted fields containing delimiters, you may need to preprocess your data or use a more sophisticated CSV parser.
Can I use this tool offline?
Yes, once the page loads, all operations happen locally in your browser. You don't need an internet connection after the initial load.
Is there a file size limit?
The tool can handle large CSV files, but performance depends on your browser's memory. For very large files (100MB+), consider splitting them first.
Can I swap columns in TSV or other delimited formats?
Yes, just change the delimiter setting to match your file format (tab for TSV, semicolon for European CSV, etc.).
How to Use CSV Swap Columns
Exchange any two columns in a CSV by their positions. The swap happens instantly in your browser and the data stays on your device.
- Paste your CSV into the input area, e.g. the sample 'name,age,city John,30,NY'.
- Under 'Separator:', set the delimiter your data uses, such as a comma or semicolon.
- In 'Column A:', enter the position of the first column to swap (1 is the leftmost).
- In 'Column B:', enter the position of the second column.
- Copy the rearranged CSV from the output area.
Positions count from 1 at the left edge, and the header row is swapped along with the data, so the table stays aligned.
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