Free Online Comma Separator Tool

Our Online Comma Separator is a high-quality utility that helps you transform vertical lists or Excel columns into a single horizontal string. This tool is completely free, requires no registration, and delivers instant results for developers, data analysts, and marketers[cite: 9].

What the Comma Separator Tool Does

This tool automates the process of data formatting. It converts line-separated data into various formats like CSV, semicolon-delimited text, or custom-spaced strings[cite: 10].

How to Use This Tool

  1. Paste: Drop your list into the first input box[cite: 5].
  2. Select: Choose your delimiter (e.g., Comma or Semicolon)[cite: 5].
  3. Options: Check “Unique Only” to remove duplicate entries automatically[cite: 5].
  4. Result: Copy your formatted text instantly from the output area[cite: 5].

Key Features & Benefits

  • No Registration: Use it immediately without signing up[cite: 9].
  • Data Privacy: All processing happens in your browser; your data is never uploaded[cite: 9].
  • Clean Output: Automatically trims whitespace and removes empty lines.
  • Universal Support: Works across all modern web browsers[cite: 3, 4].

Standards & WCAG Compliance

Requirement Our Tool Standard
Format Accuracy RFC 4180 (CSV Standard) compliant [cite: 10]
Accessibility WCAG 2.1 Accessible labels and buttons [cite: 2, 8]
Data Type Alphanumeric, UTF-8 encoded text [cite: 10]

FAQs: Online Comma Separation

How do I convert an Excel column to a comma-separated list?

Simply copy the column from Excel and paste it here. Our tool automatically handles the newline characters[cite: 10].

Can I remove duplicates while formatting?

Yes, ensure the “Unique Only” checkbox is selected to clean your list while you convert[cite: 10].