Comma Separating Tool
Convert newline lists into comma-separated text (CSV), SQL in-clause strings, or custom delimited arrays instantly.
Free Online Comma Separating & List to CSV Tool
Convert newline lists into comma-separated text (CSV), SQL in-clause strings, or custom delimited arrays instantly.
Quick Answer & Overview
The Comma Separating Tool converts vertical column lists into horizontal comma-separated values (CSV) or custom delimited strings. It enables developers, marketers, and database administrators to format lists for SQL queries, Excel imports, and Google Ads keyword campaigns in milliseconds.
Paste Column List
Paste your list of items, email addresses, keywords, or SKU numbers into the input area.
Choose Delimiter & Quotes
Select commas, semicolons, pipes (|), spaces, or wrap entries in single or double quotes for SQL.
Deduplicate & Clean Data
Optionally remove duplicate lines, trim whitespace, and sort entries alphabetically.
Copy Delimited String
Copy your formatted comma-separated string to your clipboard for database queries or spreadsheets.
Transform Column Lists into Clean CSV Strings
Copying a column of 500 email addresses or database IDs from Excel and manually adding commas between each entry takes forever. Our Comma Separating Tool transforms vertical newline lists into clean, formatted comma-separated text, SQL IN-clauses, or custom-delimited strings with a single click.
SQL Query Formatting
Wrap entries in single quotes ('id1', 'id2') ready for pasting directly into SQL statements.
Custom Delimiters
Choose between commas, pipes (|), semicolons, tabs, or custom prefix/suffix strings.
Deduplication & Trim
Automatically clean out trailing spaces, blank lines, and duplicate entries in one pass.
Delimited String Transformations Reference
| Output Mode | Transformation Syntax | Typical Use Case |
|---|---|---|
| Standard CSV | apple, banana, cherry, orange | Email recipients, spreadsheets, and tags. |
| SQL Quoted IN List | 'apple', 'banana', 'cherry' | Database WHERE column IN (...) clauses. |
| Pipe Delimited | apple | banana | cherry | Regex alternation patterns and bash piping. |
Frequently Asked Questions
Can I wrap each item in quotes for SQL queries?
Yes. You can select "Single Quotes" or "Double Quotes" to format items for SQL `WHERE id IN ('item1', 'item2')` clauses effortlessly.
Does this tool work in reverse (converting comma-separated text into a column list)?
Yes. You can switch to "CSV to List" mode to split comma-separated or tab-separated text back into vertical line-by-line columns.
Can I remove duplicates while formatting the list?
Yes. Check the "Remove Duplicates" box to automatically strip repeated entries and clean up large data sets.
What is the maximum number of lines I can convert?
The tool runs entirely in your local browser JavaScript engine, effortlessly converting lists with over 50,000 items in milliseconds.
Is my data stored or uploaded to your servers?
No. All formatting executes locally in your browser memory. Your confidential lists and data are never sent across the internet.
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