JS Formatter Online – Debug & Format js formatter

Beautify and format JavaScript code for better readability.

Raw JS / TS
Beautified Output
function hello(name) {
  console.log("Hello, " + name);
  if (name === "World") {
    return true
  } else {
    return false
  }
}
hello("metatool.in");

Online JavaScript Formatter

Our JavaScript Formatter (also known as a JS beautifier) is a powerful, client-side tool that takes any JavaScript or TypeScript code and applies consistent formatting. It's especially useful for making sense of minified code or cleaning up projects with inconsistent coding styles.

We use the industry-standard js-beautify engine, ensuring high-quality results while keeping all processing entirely in your browser for 100% privacy.

Why Format Your JS?

  • Easier Debugging: It's nearly impossible to debug code that is all on one line.
  • Code Auditing: Quickly understand what a script is doing before including it in your project.
  • Clean Diffs: Using a consistent formatter prevents "whitespace noise" in your version control history.

Frequently Asked Questions

A JavaScript formatter (or beautifier) takes minified, obfuscated, or poorly formatted JS code and reorganizes it with proper indentation, line breaks, and bracket placement to make it human-readable.
Yes, it handles most TypeScript syntax correctly as it shares the same structural patterns as JavaScript.
No, it only changes the visual structure of your code. It will not fix syntax errors or logic bugs.

Related Free Tools

  • JS Minifier — Minify JavaScript code to optimize performance and reduce size.
  • HTML Formatter — Beautify and indent HTML code for better structure and readability.
  • CSS Formatter — Beautify and format CSS code with proper indentation.