What is this newlines-to-CSV tool?
A free, browser-based tool that turns a newline-separated list into a CSV row or column. Paste a vertical list — emails, SKUs, tags, names — pick a delimiter and layout, and get clean CSV you can copy or download. It handles quoting for you: values containing commas, quotes, or newlines are escaped correctly, so the output imports cleanly into spreadsheets. Everything runs locally in your browser, so your data is never uploaded.
How to use it
- Paste your list into the box on the left — one value per line.
- Choose a delimiter (comma, tab, semicolon, or pipe) and a layout (single row or single column).
- Pick a quoting mode — 'auto' quotes only when needed, 'always' wraps every field.
- Copy the CSV or download it as list.csv.
Common use cases
- Turning a pasted list of emails or SKUs into a CSV header row for a spreadsheet.
- Building a single-column CSV for import into a CRM or ad platform.
- Safely escaping values that contain commas, quotes, or line breaks.