List-to-Comma-Separated Values Converter

Free online List-to-Comma-Separated Values Converter that runs directly in your browser.

Secure (SSL)

Client-Side Processing

100% Free

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Instructions

1

Enter data
Enter content, paste text or load a file from disk.
2

Click the button
The tool will immediately process your data in the browser.
3

Get the result
Copy the finished text or save the file to your device.

                                                function runTool() {

                                                  return "Result ready in 0.1s";

                                                }

Settings

Input separator

Choose how to split the list into individual values.

Result separator

By default, values are joined by a comma.

Sorting

Optionally sort the cleaned values.

Input data

90 characters

Trim whitespace Removes spaces and line breaks from the beginning and end of a value.

Skip blank items Does not add empty items after splitting the text.

Remove duplicates Leaves the first occurrence of the same value.

Quote values Surrounds values with quotation marks and escapes them according to CSV.

Add a space after the separator Works for single-line separators, e.g. "a, b, c".

Result

Set the parameters and click \"Process\" to see the result.

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List to CSV converter – one row or entire table in a second

CSV (Comma-Separated Values) is a common format for exchanging data between spreadsheets, databases and applications. The tool turns a simple list of rows (or multi-column tabular text) into a valid CSV file with the selected separator and encoding.

list to CSV converter list to CSV text to CSV online replace list with commas

Input and output formats

Input: list of rows (each row = 1 CSV record), text with space/tab separated columns, JSON array of objects. Output: CSV with separator: comma (,), semicolon (;) - standard in Excel PL, tab (\t) - TSV, pipe (|). Output encoding: UTF-8 (recommended), UTF-8 BOM (Excel Windows), Windows-1250 (older PL systems).

Handling quotation marks and special characters

RFC 4180: fields containing a separator or newline character must be enclosed in quotation marks: "field, with comma". Quotation marks inside the field: doubled ("" instead of "). The tool automatically quotes (quote) fields when needed or always - selectable. Field with a new line: "" after quoting - allows multi-line cells in CSV.

Header and metadata

Option to add a header row: manually entering column names or auto-detection from the first row. Number of columns: automatically detected from the first record. Incompatible number of columns in rows: blank fill or error warning.

Use cases

Import to Excel/Sheets: Download CSV → Database Seed: INSERT bulk from CSV file (extract-transform-load).

FAQ

Why does Excel fail to open CSV with Polish characters?

Excel Windows defaults to ??? or bushes Solution: save CSV as UTF-8 BOM or open via Data → From Text/CSV (Excel 365) and select encoding.

What is RFC 4180 and is it a standard?

RFC 4180 (2005): informal CSV standard defining separator (,), quotation marks, newline (CRLF), encoding (ASCII/UTF-8 by default) Not an ISO standard - many implementations violate it. Excel generates CSV with semicolons (;) instead of commas in European locales.

How to import CSV to Google Sheets?

File → Import → Separator type: automatic or specify Excel. Alternatively: paste data directly from the clipboard - Sheets will detect the table structure.

What is TSV (Tab-Separated Values)?

TSV uses a tab as a separator instead of a comma editing. Used by bioinformatics (BED, VCF format), export from databases.

How to handle CSV with multi-line fields?

Multi-line field: must be in quotation marks: "line1\nline2". for proper parsing, use a library (Python csv module, papaparse.js), never manual split!

Related tools: CSV to JSON converter, JSON to CSV converter and CSV validator.