offlinewebtools.com — free, watermark-free browser tools that stay on your device with nothing uploading to our servers

CSV Column Picker

Extract only the columns you need from large CSV files. Perfect for creating lightweight exports for spreadsheets, dashboards, or downstream processing.

Free to use, no watermarks, runs in your browser—nothing uploads to our servers

CSV data

Supports header rows, quoted values, and multi-line fields.

Delimiter

Use first row as headers

Add secondary CSV

Report a bug

If this tool misbehaves, share a quick summary so we can investigate. We include the tool URL automatically—no need to copy and paste.