Comma Separating Tool

Comma Separating Tool — a free online tool.

Turning a list into a comma-separated line

This is a common step when preparing data for a spreadsheet formula, a CSV import, a SQL "IN" clause, or just a tidy comma-separated sentence built from a bullet list. Paste your items one per line - it also works if they're separated by spaces instead - and optionally wrap each one in quotes, which matters when the target you're pasting into expects quoted string values rather than bare words.

Why the quote and spacing options matter for different destinations

A SQL "IN" clause typically needs each value quoted - IN ('apple', 'banana', 'cherry') - so the quote-wrapping option produces exactly that format directly. A plain comma-separated sentence for running text usually reads better with a space after each comma, which is the default here, while some strict machine-read formats (certain CSV-style imports) expect no space at all between values.

How input is parsed

The tool first tries splitting your pasted text on line breaks, since that's the most common way people paste a list (one item per line, copied from a spreadsheet column or a bulleted list). If there are no line breaks at all in what you paste, it falls back to splitting on spaces instead, so a single line of space-separated words still works without needing to reformat it first.

Why blank lines are automatically removed

Empty or whitespace-only lines are silently skipped during parsing, which matters because pasted content - especially copied from a spreadsheet or a formatted document - very commonly includes stray blank lines that would otherwise turn into empty, awkward double-commas in the output.

Často kladené otázky

Can I paste items separated by spaces instead of new lines?

Yes - if there are no line breaks in what you paste, the tool falls back to splitting on spaces instead.

Does it remove blank lines?

Yes - empty or whitespace-only lines are skipped so you don't end up with stray commas in the output.

Why would I need to wrap each item in quotes?

Many programming contexts - like a SQL "IN" clause - require each value to be individually quoted, so this option produces output ready to paste directly into that kind of code.

How do I get an actual, valid JSON array out of this?

Check "Wrap in [ ]" - it adds the enclosing square brackets and automatically quotes (and properly escapes) each item as a JSON string, producing a complete, valid JSON array rather than just a quoted, comma-separated line.

What if some of my items already contain commas?

This tool doesn't escape commas within an item, so an item that already contains a comma will produce output that reads as more items than intended when the result is parsed elsewhere - review the output if your source items might contain commas.

Can I use this to prepare a list for a spreadsheet's IMPORTDATA or similar function?

Yes - generating a clean comma-separated line from a column of pasted values is a common way to quickly build input for spreadsheet functions that expect CSV-style data.

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