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Beautifier
beautifier.io
Online JavaScript beautifier
Chrome, in case the built-in CSS and javascript formatting isn't enough for you: โ€” Quick source viewer by Tomi Mickelsson (github, blog), โ€” Javascript and CSS Code beautifier by c7sky, โ€” jsbeautify-for-chrome by Tom Rix (github), โ€” Pretty Beautiful JavaScript by Will McSweeney โ€” Stackoverflow Code Beautify by Making Odd Edit Studios (github).
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FreeFormatter
freeformatter.com โ€บ 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.
Discussions

[AskJS] What do you think about online Javascript beautify tools?
Use Prettier and ESLint. If you can't, use a VSC built in function (if they have one), or a plugin. You should not need to use an online tool. More on reddit.com
๐ŸŒ r/javascript
17
0
March 25, 2021
JSON.fr : an online JSON Validator and formatter
My fav is still jsoneditoronline.org ( source ), but always good to have alternatives. More on reddit.com
๐ŸŒ r/javascript
2
10
February 27, 2014
Online Javascript Code Formatter : r/javascript
๐ŸŒ r/javascript
FracturedJson - a JSON formatter that produces human-readable but fairly compact output
3 years have passed. We now have linting and minifiers for the numerous JSON formatting libs that have been released. There are now 8 competing standards on how best to format JSON so it's pretty. Joking aside, great idea. I've rarely had problems reading formatted JSON, but lining it up as though it's columns is definitely a lot easier on the eyes and for comparing data in arrays. More on reddit.com
๐ŸŒ r/javascript
23
183
January 31, 2021
People also ask

What is JavaScript Minification?
Minification, or minimization, of JavaScript source code is the process removing all characters that aren't required for proper execution. These unnecessary characters usually include formatting characters, like: whitespaces, linebreak characters, comments, and in some cases block delimeters and end-of-line characters. After minification is applied, JS code is supposed to keep its functionality.
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minify-js.com
minify-js.com
Minify JS Online. JavaScript Minification tool that works in ...
How does JavaScript Minification work?
Minification process is performed by a software or utility that analyzes and rewrites source code to reduce its size. Usually, minification process includes removal of whitespaces, shortening of variable names, and verbose functions replacement. Minification is performed on the server side and only when the source file is changed.
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minify-js.com
minify-js.com
Minify JS Online. JavaScript Minification tool that works in ...
Why is Minification used?
Minification allows to reduce JavaScript file size that has a positive impact on load times and bandwidth usage. As a result, site speed and accessibility is higher compared to sites that don't use minification. Other words, minification tangibly improves user experience.
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minify-js.com
minify-js.com
Minify JS Online. JavaScript Minification tool that works in ...
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Toptal
toptal.com โ€บ developers โ€บ javascript-minifier
JavaScript Minifier & Compressor | Toptalยฎ
Use our JavaScript Minifier & Compressor tool to reduce JavaScript code size and make your website load faster. Get started for free now.
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JSON Formatter
jsonformatter.org โ€บ jsbeautifier
Best JSBeautifier to beautify / format JavaScript
Javascript Beautifier Online helps to Edit, View, Analyse Javascript data along with beautify and formatting Javascript data.
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Minify JS
minify-js.com
Minify JS Online. JavaScript Minification tool that works in ...
Minify-JS.com is an online tool that allows you to reduce the size of JavaScript code up to 80%. The minify js tool uses the Terser utility that is compatible with the ES6+ standard.
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Prettier
prettier.io
Prettier ยท Opinionated Code Formatter ยท Prettier
Try It OnlineInstall Prettier ยท Limited edition tshirts are now available to buy! $10 per tshirt goes to maintain the project. An opinionated code formatter ยท Supports many languages ยท Integrates with most editors ยท Has few options ยป ยท Your code is formatted on save ยท No need to discuss style in code review ยท Saves you time and energy ยท And more ยป ยท JavaScript ยท
Find elsewhere
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TextCompare
textcompare.org โ€บ javascript
Online Javascript Compare Tool
Secure: All the data is encrypted and sent over 128-bit SSL/TLS secure connection for online saved data. No Installation: This is a web based tool, no software installtion required. It works on any modern browser like Firefox, Chrome, Edge etc on Windows, Mac or Linux based computer. Unlimited: There is no limit on number of comparisons you can do. You can compare as many Javascript files as you want.
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Static.app
static.app โ€บ js-formatter
JS Formatter - Static.app
Format JavaScript code online with our free JS Formatter. Organize and clean up your JavaScript files for better readability and easier maintenance.
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Quarto
quarto.org
Quarto
Quarto includes native support for Observable JS, a set of JavaScript enhancements created by Mike Bostock (the author of D3).
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Videojs
videojs.org
Video.js | Open Source Video Player
The open-source video player for React and HTML. Lightweight, accessible components built for performance and streaming.
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BeautifyTools
beautifytools.com โ€บ javascript-beautifier.php
Online Javascript Beautifier - Javascript Formatter - BeautifyTools.com
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.
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Project Jupyter
jupyter.org
Project Jupyter | Home
The Jupyter Notebook is a web-based interactive computing platform. The notebook combines live code, equations, narrative text, visualizations, interactive dashboards and other media.
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Scaler
scaler.com โ€บ home โ€บ topics โ€บ javascript โ€บ javascript formatter
Online JavaScript Formatter and Beautifier
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.
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Site24x7
site24x7.com โ€บ tools โ€บ js-beautifier.html
JavaScript Beautifier: Site24x7 Tools
Free tool to convert your minified and messy JavaScript code into readable code format.
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GeeksforGeeks
geeksforgeeks.org โ€บ utilities โ€บ javascript-formatter
Online Free JavaScript Formatter and Beautifier - GeeksforGeeks
1 week ago - This free Online Javascript Formatter/Beautifier allows you to edit, view, analyze, beautify, and format JavaScript code.
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CodeShack
codeshack.io โ€บ home โ€บ tools โ€บ 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.
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roxunlimited
roxunlimited.com โ€บ 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.
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DebugBear
debugbear.com โ€บ tool โ€บ beautify-js
Online JavaScript Beautifier: Format JS Code
Prettify JavaScript code to make it easier to read and analyze minified JavaScript files.