Convert COLUMN to COMMA, Free
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How to convert COLUMN to COMMA
When you copy a column of values from Excel, Google Sheets, or any text editor, each item sits on its own line. Many tools, SQL queries, and APIs expect those same values in a single comma-separated string instead: item1, item2, item3. Doing this manually by adding commas after each line is tedious and error-prone on long lists. This converter takes your newline-separated column and joins the items with commas instantly in your browser using a simple JavaScript split-and-join operation.
The conversion is straightforward: split the input on newline characters, strip any leading or trailing whitespace from each item, filter out blank lines, then join with ', '. You can also customize the separator (semicolons for European CSV conventions, pipe characters for certain database imports) and control whether items are quoted. The result is ready to paste into SQL IN clauses, spreadsheet formulas, form fields, or configuration files.
Paste your column of values
Copy a list from a spreadsheet or any text source and paste it into the input box. Each item should be on its own line.
Choose a separator
Select comma (default), semicolon, pipe, or a custom character. Optional: wrap each item in quotes for SQL or CSV compatibility.
Click Convert
The tool joins the lines with your chosen separator, removing extra blank lines and trimming whitespace automatically.
Copy the output
Click the copy button to grab the comma-separated result and paste it wherever you need it.
Frequently asked questions
What is this useful for?
SQL IN clauses are the most common use case: SELECT * FROM users WHERE id IN (1, 2, 3, 4). It is also handy for joining email lists, building config arrays, and generating test data.
Does it handle blank lines?
Yes. Empty lines in your input are automatically skipped, so you do not get empty entries in the output.
Can I add quotes around each item?
Yes. Enabling the 'quote items' option wraps each value in single or double quotes, which is required for SQL string comparisons: WHERE name IN ('Alice', 'Bob', 'Carol').
What if my values already have commas in them?
If your source values contain commas, enable the quote option so the output can be parsed correctly as a delimited list.
Can I reverse this and turn a comma-separated list back into a column?
Yes. Use the reverse mode (comma-to-column) which splits on the delimiter and puts each item on its own line.