Convert Lines to Comma List

Combine a multi-line list of items into a clean comma-separated single-line string.

How It Works & Processing Standards

Combine a multi-line list of items into a clean comma-separated single-line string.

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

Current Limits

  • Maximum input length: 2,000,000 characters

Convert Lines to Comma List 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 Convert Lines to Comma List

  1. 1
    Paste LinesEnter lines of text.
  2. 2
    CombineLines join with commas.
  3. 3
    CopyCopy your comma-separated string.

Common Use Cases

  • Formatting a column of copied spreadsheet cells into an SQL IN (...) clause
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