Free Lines to Comma Converter Turn Vertical Lists into Strings

list conversion

Convert a list of lines into a comma-separated (or any separator) string — and back. Supports quoting, trimming, deduplication, and all languages with RTL/LTR.

Mode

• Lines → Sep
• Sep → Lines

Sep

• commapipetabspacesemislash

Quote

• none
• '
• "
• `

Trim

• Remove empty
• Remove duplicates
• Sort A–Z

LTRRTL

Lines

• 0 items

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Separated

• 0 items

Copy Download Use as Input

• 0

Input items

• 0

Output items

• 0

Unique items

• 0

Removed

• 0

Avg item length

Item Preview

• 0 items

Convert to see items here

Features

Bidirectional

Convert lines to a separated string or split a separated string back to lines — one tool for both directions with a single mode toggle.

Any Separator

Presets: comma, pipe, tab, space, semicolon, slash. Or type any custom separator — multi-character separators work too.

Quote Wrapping

Wrap each item in single quotes, double quotes, or backticks — ideal for SQL IN clauses, JavaScript arrays, or shell commands.

Clean Options

Trim whitespace, remove empty items, deduplicate, and sort A–Z — all independently toggleable so you get exactly the list you need.

Item Preview

Every output item appears as a numbered chip so you can review the list visually before copying — perfect for spotting duplicates or empty items.

All Languages + RTL/LTR

Full Unicode support for Arabic, English, Chinese, Hebrew, Japanese, and all other scripts. Toggle text direction per panel for correct display.

Common Use Cases

• SQL IN clause
  Lines → comma + single quotes → paste into WHERE id IN ('a','b','c')

• JS Array
  Lines → comma + double quotes → paste as ["a","b","c"]

• CSV Row
  Lines → comma → single CSV row for spreadsheet import

• Email Recipients
  Lines of emails → semicolon → paste into Outlook To: field