List ↔ Comma-Separated Converter

Turn a newline list into a comma-separated string, or split a comma-separated string back into lines.

100% freeNo sign-upRuns in your browserNo upload · data stays private

📖 Read the full List ↔ Comma-Separated Converter guide — how it works, examples & FAQ →

How to use this tool

  1. Paste a list or a comma-separated string.
  2. Pick the direction.
  3. Copy the result.

Example

a / b / c → a, b, c

Why it's private

This tool runs entirely in your browser using JavaScript. Whatever you paste is processed on your own device — it is never uploaded to a server, logged, or stored. Built by Calabi, which also strips AI metadata and C2PA signals from images and video.

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