Overview
Introduction
Sometimes a comma-separated file or list needs to use a different delimiter entirely, like a pipe or semicolon, to work with a particular tool or import format.
Manually finding and replacing every comma in a long piece of text is slow and error-prone to do by hand.
What Is Comma Replacer?
A converter that replaces every comma in your text with a custom string you specify, from a single delimiter character to a full word or empty string.
It runs entirely client-side as part of this site's String Tools collection, so nothing you paste is ever uploaded to a server.
How Comma Replacer Works
The tool splits the input on every comma and rejoins the pieces using your chosen replacement string in place of each comma.
The transformation happens synchronously in JavaScript as you type, with no network round trip involved.
When To Use Comma Replacer
Use it when you need to change a CSV file's delimiter, swap commas for semicolons, pipes, or another separator for a specific import format.
It's also useful for turning a comma-separated list into readable prose by replacing commas with a word like ' and '.
Often used alongside Commas to Spaces Converter, Spaces to Commas Converter and Comma to Newline Converter.
Features
Advantages
- Supports any replacement string, not just a fixed set of alternate delimiters.
- Leaving the replacement blank doubles as a simple 'delete all commas' tool.
Limitations
- It doesn't understand CSV quoting, so a comma inside a quoted field is replaced just like any other comma.
Examples
Best Practices & Notes
Best Practices
- For genuine CSV data with quoted fields containing commas, use a dedicated CSV parser instead of this simple text-replace tool.
Developer Notes
The implementation is `input.split(",").join(replacement)`, a common, allocation-light idiom for a global string replace that avoids constructing a regex for a fixed, non-special character like a comma.
Comma Replacer Use Cases
- Converting a comma-delimited file to use a different delimiter for a specific import tool
- Turning a comma-separated list into readable prose by replacing commas with a connecting word
- Removing all commas from text by leaving the replacement field blank
Common Mistakes
- Using this on quoted CSV data expecting commas inside quotes to be left alone; they aren't, since the tool doesn't parse quoting.
Tips
- Leave the replacement field empty to delete every comma without adding anything in its place.