New Lines to Comma Separator

Convert multi-line text into comma-separated values instantly. Import text files, choose custom delimiters, and copy the result with one click.

Options

What It Does

This tool takes a list where every item sits on its own line and joins it into a single delimited string. You paste lines, pick a separator — comma, semicolon, pipe, tab or a custom character — and it stitches the items together for you. Along the way it can trim whitespace from each line, drop blank lines, and wrap every item in double quotes so the result is safe to drop straight into a SQL IN clause, a CSV row, a JSON array of strings or a config value. The conversion runs live as you type and happens entirely in your browser using JavaScript, so nothing is uploaded to a server and your text stays private on your own device.

When to Use It

  • You copied a column of IDs or emails out of a spreadsheet and need them as a SQL IN (...) list to run a quick query.
  • You are building a single CSV row from a stack of values and want them comma-joined, with items quoted so embedded commas do not break the columns.
  • You need a JSON array of strings for a config or API payload and want each line quoted and comma-separated, ready to wrap in square brackets.
  • You are filling in a config or environment value that expects a delimited list, such as allowed hosts or feature flags, and need pipe- or semicolon-separated output.

Worked Examples

Washington, DC New York San Francisco Austin

City names where one value contains its own comma. Turn ON Wrap in Quotes so the output becomes "Washington, DC", "New York", "San Francisco", "Austin". Without quotes, a SQL IN clause would read Washington and DC as two separate values and break.

1024 2048 4096 8192

A list of IDs with blank lines scattered through it. Keep Remove empty lines ON and the output is a clean 1024, 2048, 4096, 8192 — the four empty lines are dropped instead of becoming stray commas.

alpha beta gamma delta

Pick the custom separator and type " | " to build a pipe-delimited config value: alpha | beta | gamma | delta. Handy for allowed-hosts lists and other settings that expect pipes rather than commas.

Features

Live conversion as you type
Import text from files with drag and drop
Choose separator: comma semicolon pipe tab or custom
Trim whitespace from each line
Remove empty lines automatically
Wrap items in double quotes
Character and item count display
Copy result with one click
Works entirely in your browser
Supports large text files

How to Use

1. Paste or type your multi-line text in the input area or click Import from File to load a text file. 2. The output updates live as you type. 3. Choose your separator character and toggle options like trim whitespace or remove empty lines. 4. Click Copy to copy the result. 5. Click Clear to reset everything.

Common Mistakes

  • Forgetting to quote items that contain the separator. A value like Washington, DC silently splits into two when pasted into a SQL IN clause or CSV — turn on Wrap in Quotes whenever items may contain commas or spaces.
  • Leaving blank lines in the input. Without Remove empty lines, each empty line becomes an empty item, producing trailing or doubled separators like a,,b that break SQL and JSON parsing.
  • Assuming a trailing separator is fine. A list that ends in a stray comma — often from a blank final line — is invalid inside SQL IN (...) and JSON arrays; remove empty lines or trim the input first.
  • Skipping the trim option on pasted data. Copied lines often carry leading or trailing spaces, so " apple" and "apple" become different values — enable Trim whitespace to normalise them before joining.

Frequently Asked Questions

All processing happens locally in your browser. No data is sent to any server. Your text remains completely private.

Explore related topics

#Generator #Utilities