CSV Column Selector

Select and extract only specific columns from CSV data, discarding unwanted fields.

How It Works & Processing Standards

Select and extract only specific columns from CSV data, discarding unwanted fields.

Your input data is never sent to any server and is securely processed on your device.

Current Limits

  • Desktop max file size: 50MB
  • Mobile max file size: 20MB

CSV Column Selector is a 100% free, browser-based online utility. All calculations and file conversions run locally inside your browser (Local-First) without sending data to remote servers, keeping your documents and inputs strictly private.

How to Use CSV Column Selector

  1. 1
    Input CSVPaste CSV text or upload a file.
  2. 2
    Pick ColumnsCheck the column names or enter column indices to keep.
  3. 3
    ExtractDownload or copy the trimmed CSV containing only the chosen columns.

Examples

Select Columns
Input: id,name,age,email,address 1,Alice,30,alice@example.com,Seoul
Result: Selected [id, email]: id,email 1,alice@example.com

Common Use Cases

  • Removing sensitive columns (passwords, PII, internal IDs) before sharing datasets
  • Extracting key identifiers and metrics for statistical analysis
  • Reducing CSV file size for faster web application uploads

Frequently Asked Questions (FAQ)

Can I reorder columns during selection?

Yes, columns are output in the exact order you select or specify them.

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