Beautifier
beautifier.io
Online JavaScript beautifier
Chrome, in case the built-in CSS and javascript formatting isn't enough for you: — Quick source viewer by Tomi Mickelsson (github, blog), — Javascript and CSS Code beautifier by c7sky, — jsbeautify-for-chrome by Tom Rix (github), — Pretty Beautiful JavaScript by Will McSweeney — Stackoverflow Code Beautify by Making Odd Edit Studios (github).
FreeFormatter
freeformatter.com › javascript-beautifier.html
Free Online Javascript Beautifier / Formatter - FreeFormatter.com
This free online tool lets you beautify/format your JavaScript code with no side effects.
Videos
11:20
How to Format Code Automatically with Prettier and VS Code - YouTube
01:32
The BEST Way To Format Lists in JavaScript - YouTube
10:21
Formatting Is So Easy With The Intl JavaScript API - YouTube
06:02
JavaScript #12 Comments and Prettier Code Formatter - YouTube
20:35
Create Your Own JSON Formatter with JavaScript (Prettify/Minify) ...
What is a JavaScript Beautifier?
A JavaScript Beautifier is a tool that takes unformatted or poorly formatted JavaScript code and applies formatting rules to make it more readable and organized. The tool typically adds white space, indentation, and line breaks to the code.
lambdatest.com
lambdatest.com › home › free tools › javascript formatter & beautifier
JavaScript Formatter & Beautifier Online | LambdaTest
Why is JavaScript Beautifier important?
JavaScript Beautifier is important because it makes code more readable and easier to understand. It can also help to enforce consistent code formatting across a team of developers, which improves collaboration and reduces the risk of errors.
lambdatest.com
lambdatest.com › home › free tools › javascript formatter & beautifier
JavaScript Formatter & Beautifier Online | LambdaTest
Can a JavaScript Beautifier help prevent errors in code?
Yes, JavaScript beautifiers can help prevent errors in code by analyzing it for potential issues and suggesting improvements. This can help catch errors early in the development process, improving the overall quality of your JavaScript code.
lambdatest.com
lambdatest.com › home › free tools › javascript formatter & beautifier
JavaScript Formatter & Beautifier Online | LambdaTest
JSON Formatter
jsonformatter.org › jsbeautifier
Best JSBeautifier to beautify / format JavaScript
Javascript Beautifier Online helps to Edit, View, Analyse Javascript data along with beautify and formatting Javascript data.
Static.app
static.app › js-formatter
Online JS Formatter
Format JavaScript code online with our free JS Formatter. Organize and clean up your JavaScript files for better readability and easier maintenance.
Webinovers Web Tools
webinovers.com › web-tools › online-javascript-beautifier
Online JavaScript beautifier | Webinovers Web Tools
Online JavaScript beautifier takes ugly and minified javascript and make it clean, well-formatted code. It gives the code proper indentation, newlines, spaces to make it easier to read.
GeeksforGeeks
geeksforgeeks.org › utilities › javascript-formatter
Online Free JavaScript Formatter and Beautifier - GeeksforGeeks
July 23, 2025 - This free Online Javascript Formatter/Beautifier allows you to edit, view, analyze, beautify, and format JavaScript codes.
Prettier
prettier.io
Prettier · Opinionated Code Formatter · Prettier
Try It OnlineInstall Prettier · Limited edition tshirts are now available to buy! $10 per tshirt goes to maintain the project. An opinionated code formatter · Supports many languages · Integrates with most editors · Has few options » · Your code is formatted on save · No need to discuss style in code review · Saves you time and energy · And more » · JavaScript ·
Toolsina
toolsina.com › js-formatter
JavaScript Formatter - Beautify JS Code Online
Format and beautify your JavaScript code online. Clean and readable JS output instantly with our free JS formatter.
Jsontotable
jsontotable.org › javascript-formatter
JavaScript Formatter Online - Free JS Beautifier & Code Formatter | JSON to Table Converter
Format and beautify JavaScript code online with proper indentation. Free JS formatter with instant results.
LambdaTest
lambdatest.com › home › free tools › javascript formatter & beautifier
JavaScript Formatter & Beautifier Online | LambdaTest
This free online takes unformatted or poorly formatted JavaScript code and applies formatting rules to make it more readable and organized.
Code Beautify
codebeautify.org › jsviewer
Best Javascript Beautifier tool work as JavaScript Formatter, Viewer and Prettier
Secure JavaScript Beautifier, Viewer, Editor, Minify, Formatter, Obfuscator - Convert JS/Javascript Strings to a Friendly Readable Format.
Textmagic
freetools.textmagic.com › source-code-formatter
Source code formatter & beautifier - Textmagic
Use our free source code formatter to instantly transform, beautify, and format HTML, XML, CSS, JavaScript, PHP, or JSON code.
roxunlimited
roxunlimited.com › js-beautifier
Beautify JavaScript Code Online | Free JS Beautifier - roxunlimited
Use our free online JavaScript beautifier to quickly clean and format your messy JS code. Whether you're debugging, reviewing, or preparing code for production, our online code formatter helps you beautify JavaScript with just one click.
ConvertSimple
convertsimple.com › javascript-formatter
JavaScript Formatter Online - ConvertSimple.com
October 22, 2020 - Format your JavaScript online with this simple online JavaScript Formatter tool.
Labnol
labnol.org › beautifier
Online Code Beautifier for JavaScript, JSON, HTML, CSS and PHP
The beautifier can understand and format source code of all the popular languages including JavaScript, JSON, Python, HTML, XML, CSS, and PHP.
WebUtility
webutility.io › home › javascript formatter online
JavaScript Formatter Online - WebUtility.io
April 29, 2025 - Clean up messy JavaScript instantly with our free online JavaScript formatter. Customize indentation and style for perfectly readable code.
10015
10015.io › tools › javascript-formatter
JavaScript Formatter: Beautify JavaScript Code Online | 10015 Tools
Enter unformatted Javascript code that you need to beautify in input text area. Indentation size may be changed if you need a spacing other than 2-spaces. Options are available from 1 to 5. Click the "Format" button to end the process. Formatted JS code will be shown on output field.
HTML Cleaner
html-cleaner.com › js
JavaScript Cleaner - Free online JS Beautifier
End script and style with new line Detect packers and obfuscators Space after conditional "if" Support XML-like syntax Comma-first list style Sustain array indentation Break lines on chained methods Unescape encoded printable chars Use JSLint formatting Indent <head> and <body> ... Always keep a backup and verify your code before publishing! We use cookies to collect anonymous visitor analytics and to show personalized ads. This website doesn't send your code to the server and doesn't save it. We use cookies to improve user experience. Please report if you find an error or you have any suggestion. This free online JavaScript code beautifier and cleaner tool allows you to tidy and optimize your code.
Minifier
minifier.org › javascript-beautifier
Best Online JavaScript Beautifier / Formatter
Use our online JavaScript Beautifier to clean, format, and structure your code. Improve readability, fix indentation, and beautify JS quickly.
CodeShack
codeshack.io › javascript-formatter
JavaScript Formatter - Beautify and Format JS Code Online
Format and beautify your JavaScript code online. Paste messy JS or load a file, choose indentation, and get clean, readable code instantly.