Comma Separator

The Comma Separator converts a list of items into a comma-separated line — and back into separate lines — with options to choose the separator and wrap each item in quotes. Turn a spreadsheet column into inline CSV, build an SQL IN list, or reformat data in seconds. Free, private, and processed in your browser.

Reformat Lists Without the Tedium

Manually adding commas (and quotes) to a long list is slow and error-prone. This tool does it instantly: paste a column of values and get a clean comma-separated line, or paste a comma-separated line and get it split back into rows. It's the small utility that saves you from fiddly hand-editing every time you need to move data between formats.

How to Use It

1. Paste your list — one item per line.
2. Choose your options — separator and quotes.
3. Copy the result.

Column to Inline CSV

The most common task: you've copied a column from a spreadsheet — each value on its own line — and you need it as a single comma-separated line. Paste it in and the tool joins everything with commas, ready to drop into a config value, a query, or your code. No manual comma-wrangling required.

Quotes for Code and SQL

A favorite feature for developers: wrap each item in quotes as it's separated. A plain list becomes 'apple', 'banana', 'cherry' — exactly what you need for an SQL IN clause or a string array in code. Choosing single or double quotes and letting the tool handle them saves real time and prevents the typos that creep in when you quote dozens of items by hand.

Any Separator, Both Directions

Despite the name, you're not limited to commas. Pick semicolons, spaces, pipes, tabs, or a custom character to match your destination's format. And it works both ways: paste a delimited line and split it back into a clean column, one item per row — handy when you receive inline data and need to read or edit it line by line.

Clean As It Converts

Source lists are often messy, so the tool can trim extra spaces and skip blank lines as it converts, giving you a tidy result with no stray gaps or spacing around items. That cleanup is especially welcome when your data was copied from somewhere untidy.

Where People Use It

• Spreadsheet to CSV — turn a column into an inline list.
• SQL & code — build quoted IN lists and arrays.
• Reformatting — switch between line and comma-separated forms.
• Cleanup — tidy lists for import or pasting.

Free and Private

The conversion runs in your browser, so your data stays on your device. Paste, convert, and copy — free, with no signup.

Comma Separator FAQs

What does a comma separator tool do?

It converts a list of items into a comma-separated line — and back again. Paste a column of values (one per line) and it joins them with commas; or paste a comma-separated line and it splits it into separate lines. It also handles other separators and can wrap each item in quotes, making it easy to reformat lists for code, spreadsheets, or databases.

How do I convert a column of data into a comma-separated list?

Paste the column with each item on its own line, and the tool joins them into a single line separated by commas. This is exactly what you need when you've copied a column from a spreadsheet and want it as inline CSV — for a database query, a config value, or pasting into code.

Can it wrap each item in quotes?

Yes, that's a key feature for developers. You can wrap each item in single or double quotes as it's separated — turning a plain list into something like 'apple', 'banana', 'cherry'. This is perfect for building an SQL IN clause or an array of strings in code, saving you from adding quotes by hand.

Can I use a separator other than a comma?

Typically yes. Beyond commas, you can usually choose other separators — semicolons, spaces, pipes, tabs, or a custom character — to match whatever format your destination needs. The 'comma separator' name describes the most common case, but the tool reformats lists with whichever delimiter you pick.

Can it go the other way and split a list into lines?

Yes. Paste a comma-separated (or otherwise delimited) line and the tool splits it back into separate items, one per line. This reverse direction is handy when you receive inline data and need it as a clean column to read, edit, or process row by row.

Will it remove extra spaces or blank lines?

Many versions offer to trim whitespace and skip empty lines as they convert, so you get a clean result without stray spaces around items or gaps from blank rows. This tidying is especially useful when your source list was copied from a messy place.

What are common uses?

Turning a spreadsheet column into inline CSV, building SQL IN lists or code arrays with quoted items, reformatting data between line-separated and comma-separated forms, and cleaning up lists for import or pasting. It's a small tool that saves a surprising amount of manual editing.

Is the tool free and private?

Yes, it's free with no signup, and the conversion runs in your browser, so your data stays on your device. Paste, convert, and copy.