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 · JSX ·

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).

This free online tool lets you beautify/format your JavaScript code with no side effects.

This site give you a quick and easy way to format (beautifier) the javascript so you can easily read it. It helps to beautify/format your Javascript. JS Prettier allows loading the Javascript Source Code URL to beautify.

JavaScript · TypeScript · Flow · JSX · JSON CSS · SCSS · Less HTML · Vue · Angular GraphQL · Markdown · YAML Your favorite language? Prettier is an opinionated code formatter.

Javascript Beautifier Online helps to Edit, View, Analyse Javascript data along with beautify and formatting Javascript data. It's the very simple and easy way to Edit Javascript Data and Share with others.

Prettify JavaScript code to make it easier to read and analyze minified JavaScript files.

Format and beautify your JavaScript code online. Paste messy JS or load a file, choose indentation, and get clean, readable code instantly.

JSON · YAML · Coding Style · LLVM · Google · Chromium · Mozilla · WebKit · GNU · Indent Width · Column Limit · Format · Code formatter and code beautifier tools are crucial for enhancing the visual appeal and maintainability of source code. These tools can automatically reformat the code to follow consistent styling guidelines, such as indentation, spacing, and alignment, making it easier for developers to read and understand.

Click Format JS button and it will format the javascript code and show in output. Javascript Beautifier/formatter is an online Tool to easily beautify your Javascript code.

More than 83% of respondents to State of JS 2021.

Best JSON Pretty Print tool to Make Pretty JSON and JSON Print in color and Save and Share Online.

Online JavaScript (JS) Formatter - Transform messy JavaScript (JS) code into clean, readable code with this JavaScript Beautifier tool, saving time and effortlessly improving code quality.

Beautify (prettify) your JS data or minify (uglify) it with advanced formatting options. Our site has an easy to use online tool to convert your data.

Javascript Pretty Print Online is easy to use tool to pretty print Javascript String.

February 14, 2024 - Enhance your JavaScript with our online JS Beautifier. Easily format and beautify your code, making it clear and readable. Ideal for developers who demand efficiency and precision. Try our JavaScript formatter today for optimal coding elegance.

July 23, 2025 - This free Online Javascript Formatter/Beautifier allows you to edit, view, analyze, beautify, and format JavaScript codes.

With Code Beautifier, you can pretty-print and syntax highlight source code written in JavaScript, JSON, Python, Google Apps Script, HTML, CSS, PHP and other programming languages.

Online Javascript beautifier takes ugly, minified or obfuscated javascript and make it clean, well-formatted code. It gives the code proper indentation, newlines, spaces to make it easier to read.

Enter your messy, minified, or obfuscated Javascript (JS) into the field above to have it cleaned up and made pretty. The editor above also contains helpful line numbers and syntax highlighting.