Can I use a custom separator?

Yes, type any separator, including escapes like \n for a newline or \t for a tab.

Are quotes inside my values escaped?

Yes, matching quote characters and backslashes are escaped so the output stays valid.

Can I produce a SQL IN list?

Choose the SQL IN wrapper with single quotes and the output is ready to paste into a query.

Is my data uploaded to a server?

No. This tool runs entirely in your browser using standard web APIs, so your input never leaves your device and nothing is logged or stored on our servers.

Does it work offline and on mobile?

Yes. Once the page has loaded it keeps working without a network connection, and the layout is responsive so it stays usable on phones and tablets.

Lines to String Converter

Turn newline-separated lines into a quoted, comma-joined string.

Support

Works Offline

Privacy First

No Login

No API

Quotes

Separator

Wrap as

Trim

Remove empty

Dedupe

One item per line

Lines

One value per line

String output

Items

Chars

"apple", "banana", "cherry", "date"

About the Lines to String Converter

Paste a list with one value per line and get a single string back: choose the quote style, separator and wrapper (array, braces, parentheses, SQL IN list or a JS const array), and optionally trim, dedupe and drop empty lines first.

Examples

Quoted CSV

apple
banana

Output

"apple", "banana"

SQL IN list

SQL1
2
3

Output

SQLIN ('1', '2', '3')

Keyboard shortcuts

Copy the main outputCtrl / ⌘ + Shift + C
Download the resultCtrl / ⌘ + S
Share this toolCtrl / ⌘ + Shift + S
Reset the inputsAlt + R
Open the tool search paletteCtrl / ⌘ + K

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Frequently asked questions

Version 1.0.0 · Updated 2026-08-24 · Runs entirely in your browser