Anyone who works with SQL databases, spreadsheets, or email marketing knows the pain of formatting data. You often get a huge vertical column of emails or IDs that need to be formatted into a single, comma-separated line (CSV) before you can use them. I built this tool to automate that exact process.
Paste your vertical list into the box, choose your delimiter (like a comma, semicolon, or pipe), and the tool will instantly string it all together. It saves you from manually typing commas at the end of hundreds of lines.
Yes. When you are converting lists of customer emails or internal database IDs, security is critical. This tool is built entirely with client-side JavaScript. Your list is processed by your own computer's memory and is never transmitted to my server.