JavaScript Beautifier

JavaScript Beautifier Online – Free JS Formatter Tool

JavaScript Beautifier Online is a free web-based tool that allows you to format and beautify messy or minified JavaScript code directly in your browser, without installing any software. It organizes JavaScript code with proper indentation, spacing, and line breaks, making it more readable and easier to maintain.

This tool is ideal for developers, students, and content creators who work with JS code and want to improve readability, debug scripts, or prepare code for deployment.

Maximum Input Size

The JavaScript Beautifier Online tool supports large JS input, allowing you to format long scripts or snippets without limitations. You can safely beautify small pieces of code or entire JavaScript files without performance issues.

Input Options

You can beautify JavaScript using the following methods:

• Paste unformatted or minified JS code directly into the input box

• Use the Sample button to display an example JavaScript code only, so users can understand what kind of input is required and how beautifying works
  (The Sample button is only for demonstration. It does not beautify the code.)

How to Beautify JavaScript Online

1. Paste your JavaScript code into the input field
   or click the Sample button to view an example JS snippet

2. Click the Convert / Beautify button to format the JavaScript code

3. View the beautified, readable JS output instantly

4. Use the Reset button to clear all input and output fields

Available Buttons

• Convert / Beautify – Formats and beautifies the JavaScript code into readable structure

• Reset – Clears all input and output data

• Sample – Shows a sample JavaScript code only for guidance, helping users understand what to enter. No beautifying is performed by this button.

Why Use JavaScript Beautifier Online

Messy or minified JavaScript code is hard to read, debug, and maintain. Beautifying JS improves readability, helps identify errors, and makes scripts easier to manage for development and collaboration.

Using a JS beautifier enhances productivity, reduces mistakes, and ensures clean, organized JavaScript code for any project.

Key Features

• Beautify JavaScript online instantly

• Supports large JS code input

• Convert, Reset, and Sample buttons included

• Fast and accurate formatting

• No software or plugin required

• Works on all devices and browsers

Security and Privacy

Your data is completely safe. All JavaScript formatting is performed instantly in your browser. No input text is stored, logged, or shared, ensuring full privacy and security.

Editorial Staff

About the Editorial Staff

Editorial Staff at Spot Web Tools is a team of specialized content writers that strives to share quality and unique content. Our Writer's main objective is to cover the different aspects of technology and to help you use the internet more effectively.