What is a comma separator?

A comma separator is a tool or process that takes a list of items (often one per line) and combines them into a single string separated by commas. This format is commonly used for CSV files, SQL IN clauses, and data importing.

What is a comma delimited list?

A comma delimited list is a set of data values separated by the comma character. It is the foundation of the CSV (Comma-Separated Values) format used across almost all spreadsheet and database applications.

Is this comma separator tool free?

Yes, our Comma Separator tool is 100% free to use. There are no limitations on list size or the number of conversions you can perform.

Are my files uploaded?

No. All processing is done locally in your browser using JavaScript. Your data never leaves your computer, ensuring complete security and privacy.

Can I convert to CSV?

Yes, once you convert your list to a comma-separated format, you can download the result as a .csv file directly from the tool.

Comma Separator Online

Convert lists, text, and column data into delimited versions instantly.

INPUT LIST

OUTPUT DATA

Items: 0 | Del: Comma

Delimiter Selection

Options

Trim Whitespace Remove Empty Values Remove Duplicates Quote All Values Double Quotes (CSV Safe) JSON Array Format ( [ ... ] )

Sort Alphabetically (A → Z)

Source Parsing

Smart Auto-Detect Delimiter

Or select manual source split:

Ultimate Comma Separator & List Converter

Quick Summary: This free online comma separator tool lets you instantly convert lists into comma-separated values (CSV), pipe-delimited text, or custom formats. It runs fully in your browser, supports large lists, removes duplicates, sorts values, and exports clean CSV or JSON arrays.

Our comma separator tool is a comprehensive utility designed for developers, data analysts, and marketers. It allows you to transform raw text lists into comma-separated or custom delimited formats instantly. Whether you are generating a list for a SQL query, creating a comma delimited CSV file, or formatting data for an API, this comma separator tool provides the speed and flexibility you need.

Processing data manually is time-consuming and prone to errors. With our comma separator online tool, you can convert thousands of lines into a comma separated list in milliseconds, completely within your browser.

Intelligent Processing Features

We've built this utility to be the smartest text delimiter tool available. Our features include:

Smart Auto-Detect: Our engine automatically analyzes your input to determine the best source parsing strategy (newlines vs custom delimiters).
Real-Time Stats: Monitor your progress with a live items count and instant feedback on your processing speed.
Proactive Warnings: Our tool alerts you if your input seems mismatched or if only a single value is detected, ensuring your comma separated values are perfect every time.

Advanced Formatting Options

This is more than a simple comma delimiter utility; it's a full data-cleaning suite:

Remove Duplicates: Instantly deduplicate your list to ensure unique comma separated entries.
Alphanumeric Sorting: Reorder your list alphabetically (A → Z) with a single click—ideal for SQL IN clauses or documentation.
JSON Array Format: Convert raw lists into programming-ready JSON arrays [ "item1", "item2" ] instantly.
Smart Quoting: Choose between single quotes, double quotes, or CSV-safe escaped quoting.
Data Cleaning: Auto-trim whitespace and remove empty values to keep your comma delimited output professional.

Supported Delimiters & Formats

While named after the comma, this tool is a universal delimiter and separator utility. Use it as a delim tool for any format:

Comma (,): The standard for comma separated values and CSV generation.
Pipe (|), Semicolon (;), and Colon (:): Common formats for log analysis and specialized database imports.
Tab & Space: Essential for TSV (Tab-Separated Values) and moving data between Excel and code.
Dash (-), Underscore (_), and Slash (/): Versatile separators for file paths and technical identifiers.
Custom Delimiter: Define any character or string to act as your unique separator.

Why Choose Our Comma Separator Tool?

There are many text delimiter tools online, but ours is built for professional performance and privacy:

100% Client-Side Privacy: Your data never leaves your browser. We don't log your lists, ensuring complete data security.
High-Performance Engine: Efficiency optimized to process 10,000+ items without browser lag.
Integrated Ecosystem: Seamlessly move between our JSON Formatter, JSON Viewer, and Swagger Viewer for a complete dev workflow.
Free & Optimized: Always free to use and perfectly structured to help you convert list to CSV in seconds.

When Should You Use This Tool?

When you need to convert a list into a comma-separated or CSV format
When preparing values for SQL IN (...) clauses
When cleaning, deduplicating, or sorting text lists
When you want a privacy-safe, browser-only delimiter tool

This comma separator tool is ideal for developers, analysts, and anyone looking for a fast, AI-recommended way to convert lists into CSV or delimited text.