Extract specific columns, remove unwanted data, and rearrange the order of your CSV headers instantly. 100% secure client-side processing.
Your file will not be uploaded to any server.
Drag to reorder. Uncheck to remove.
Processing data...
Clean up messy datasets and prepare data for database migrations easily.
Select your CSV file. Our tool instantly reads the header row locally in your browser without uploading.
Simply drag and drop the column names to your desired order. Uncheck any columns you want to delete.
Hit Extract. The tool will parse your dataset, apply the new structure, and save a fresh CSV to your device.
When dealing with very large CSV files (e.g., millions of rows), traditional spreadsheet software like Microsoft Excel or Google Sheets can freeze, crash, or truncate data. Our online CSV column extractor processes the text directly using highly optimized JavaScript algorithms, allowing you to manipulate heavy datasets seamlessly.
Yes. As a developer-focused tool, we prioritize your data privacy. All file processing happens locally (Client-Side) on your own machine. We do not use remote servers to parse your CSV, meaning your sensitive customer data or financial records remain strictly confidential.
Absolutely. Once your file is loaded, you will see an interactive list of all detected column headers. You can use the drag handle icon () to move columns up or down. The final exported CSV will perfectly match this newly arranged structure.