Convert single quotes into double quotes in code

This tool converts single quotes in your code into double quotes. It processes your input code and replaces single quotes according to the chosen conversion mode. You can choose a basic conversion (replace every single quote), convert only unescaped single quotes (ignoring those preceded by a backslash), convert only single quotes that delimit string literals, or apply a custom format to each conversion. Simply enter your code, select the conversion mode below, and click the process button.

Input Code

Converted Code

Conversion Modes:

Basic Conversion
Replaces every single quote with a double quote.

Unescaped Conversion
Replaces only single quotes that are not preceded by a backslash.

Delimited Quotes Conversion
Converts only single quotes that serve as string delimiters by matching paired quotes.

Custom Format Conversion
Converts single quotes to double quotes and applies a custom format. Use {quote} as a placeholder for the converted quote.

Examples:

Basic Conversion

Converts every single quote to a double quote.

Before:

const greeting = 'Hello world';

After:

const greeting = "Hello world";

Unescaped Conversion

Converts only unescaped single quotes, leaving escaped ones intact.

Before:

const contraction = 'Don\'t worry, be happy';

After:

const contraction = "Don't worry, be happy";

Delimited Quotes Conversion

Converts only those single quotes that form complete string delimiters.

Before:

let path = '/usr/local/bin';

After:

let path = "/usr/local/bin";

Custom Format Conversion

Converts single-quoted string literals and wraps the converted result in a custom format.

Before:

const message = 'Custom';

After (Format "[Converted: {quote}]"):

const message = [Converted: "Custom"];