Free Online Tool
JavaScript Formatter
Format JavaScript online with this free JavaScript Formatter. Turn compact code into clean, readable and properly indented JavaScript instantly.
Format JavaScript Code Online
JavaScript Formatter is a free online tool for turning compact or difficult-to-read JavaScript into clean, properly indented code. Paste your JavaScript into the input box above and the formatter automatically organizes the code into a more readable structure.
It can format functions, conditional blocks, loops, arrays, objects, and other common JavaScript structures while preserving the contents of strings and template literals.
If you’re working with structured data rather than JavaScript code, use the JSON Formatter to format and inspect JSON.
How to Use the JavaScript Formatter
Paste or type your JavaScript code into the input box above. The tool processes the code and displays the formatted version in the result area.
You can review the formatted JavaScript and then copy, download, or print the result. Use the Clear button when you want to format another piece of code.
Everything runs directly in your browser, so there is no software to install and no account required.
JavaScript Formatting Example
For example, compact JavaScript such as:
function greet(name){if(name){console.log(“Hello, “+name);}else{console.log(“Hello!”);}}
becomes easier to read:
function greet(name) {
if(name) {
console.log(“Hello, “+name);
}
else {
console.log(“Hello!”);
}
}
The underlying code remains recognizable while its indentation and layout become much easier to inspect.
Why Format JavaScript?
JavaScript is often compressed into a small amount of space when it is copied from a source, generated automatically, or written quickly. Although the code may still work, reading nested functions, conditions, loops, and objects can become difficult.
Formatting adds visual structure so you can follow different code blocks more easily. This can be useful when reviewing code, debugging a snippet, studying JavaScript, or preparing code for editing.
For plain-text cleanup rather than source-code formatting, try Strip Markdown to remove common Markdown syntax from text.
Format JavaScript Without Changing Strings
The JavaScript Formatter is designed to improve indentation and code layout without modifying the contents of strings or template literals. This is important when your JavaScript contains text values where spaces, punctuation, or other characters need to remain intact.
You should still review formatted code before using it in a production project, especially when working with complex or unusual JavaScript syntax.
Free Browser-Based JavaScript Formatter
TextNivo’s JavaScript Formatter works directly in your browser. Paste your code, review the formatted output, and copy or download the result when you’re finished.
There is no account required, making it useful for quickly formatting JavaScript snippets whenever you need a cleaner view of your code.
Questions
Frequently asked questions
What is a JavaScript Formatter?
A JavaScript Formatter turns compact or difficult-to-read JavaScript into cleaner, properly indented code, making its structure easier to review and edit.
How do I format JavaScript online?
Paste your JavaScript into the input box above. The formatter automatically organizes the code and displays the formatted result, which you can copy or download.
Does the JavaScript Formatter change my code?
The tool is designed to improve formatting and indentation while preserving the contents of strings and template literals. You should still review formatted code before using it in a production project.
Can I format minified JavaScript?
You can paste compact JavaScript into the formatter to make its structure easier to read. Results can vary with highly complex or unusual JavaScript syntax.
Is the JavaScript Formatter free?
Yes. TextNivo's JavaScript Formatter is free to use and works directly in your browser without requiring an account.
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