CSV Add Prefix and Suffix

Prepend a prefix or append a suffix string to values in selected CSV columns.

How It Works & Processing Standards

Prepend a prefix or append a suffix string to values in selected CSV columns.

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 Add Prefix and Suffix 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 Add Prefix and Suffix

  1. 1
    Paste CSVEnter tabular CSV data.
  2. 2
    Set Prefix / SuffixSpecify the text to prepend and/or append to the target column.
  3. 3
    Get ResultCopy or export the updated CSV dataset.

Examples

Add URL Prefix
Input: slug about pricing contact
Result: Prefix [https://example.com/]: slug https://example.com/about https://example.com/pricing https://example.com/contact

Common Use Cases

  • Turning relative path slugs into absolute website URLs
  • Adding currency symbols ($) or measurement units (kg, ms) to numerical values
  • Adding standardized company or project code prefixes to SKU numbers

Frequently Asked Questions (FAQ)

Are empty cells given prefixes or suffixes?

You can choose whether empty/blank cells should be skipped or modified.

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