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 ·
Blog
Prettier, a JavaScript code formatter, has seen an incredible adoption thanks to its careful handling of the very, very, long tail of ways people can write code.
Options · Prettier
Also Prettier doesn’t unquote numeric properties for Vue (see the issue about that). Use single quotes instead of double quotes in JSX. ... Print trailing commas wherever possible in multi-line comma-separated syntactic structures. (A single-line array, for example, never gets trailing commas.) ... "all" - Trailing commas wherever possible (including function parameters and calls). To run, JavaScript code formatted ...
Configuration File
You can configure Prettier via (in order of precedence):
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).
Videos
12:11
How To Setup Prettier - YouTube
08:18
How to use Prettier in VS Code - Code Formatting - YouTube
10:29
Formatting your code is a waste of time - use Prettier instead ...
11:02
Prettier Javascript for Best Code Formatting | Prettier vs Eslint ...
02:06
Install Prettier on VSCode | Set Up and configure Prettier - ...
16:26
Formatting JS code with prettier - part 1: the editor - YouTube
What does a JavaScript Formatter / Beautifier do?
A JavaScript Formatter (or Beautifier) takes JavaScript code, regardless of its initial spacing or indentation, and automatically rewrites it to follow consistent style rules. This involves adjusting indentation, line breaks, spacing around operators, and other stylistic elements to make the code neat and easy to read without changing its functionality.
codeshack.io
codeshack.io › home › tools › javascript formatter
JavaScript Formatter - Beautify and Format JS Code Online
Can I choose the indentation style?
Yes, you can select your preferred indentation using the "Indentation" dropdown. Options include 2, 4, 6, or 8 spaces, or using tab characters.
codeshack.io
codeshack.io › home › tools › javascript formatter
JavaScript Formatter - Beautify and Format JS Code Online
Does this tool check for errors or bugs in my JavaScript?
No, this is primarily a code formatter, not a linter or debugger. While the formatting process might fail or highlight obvious syntax errors (like a missing bracket), it will not find logical errors, runtime bugs, or potential code quality issues. Its goal is to make syntactically valid code look clean and consistent.
codeshack.io
codeshack.io › home › tools › javascript formatter
JavaScript Formatter - Beautify and Format JS Code Online
GitHub
github.com › prettier › prettier
GitHub - prettier/prettier: Prettier is an opinionated code formatter. · GitHub
JavaScript · TypeScript · Flow · JSX · JSON CSS · SCSS · Less HTML · Vue · Angular GraphQL · Markdown · YAML Your favorite language? Prettier is an opinionated code formatter.
Author prettier
Prettier
prettier.io › docs
What is Prettier? · Prettier
Prettier is an opinionated code formatter with support for: JavaScript (including experimental features) JSX · Angular · Vue · Flow · TypeScript · CSS, Less, and SCSS · HTML · Ember/Handlebars · JSON · GraphQL · Markdown, including ...
Visual Studio Marketplace
marketplace.visualstudio.com › items
JavaScript Prettier - Visual Studio Marketplace
Extension for Visual Studio - Prettier is an opinionated JavaScript formatter inspired by refmt with advanced support for language features from ES2017, JSX, and Flow. It removes all original styling and ensures that all outputted JavaScript ...
Jlongster
archive.jlongster.com › A-Prettier-Formatter
A Prettier JavaScript Formatter
Today I am announcing prettier, a JavaScript formatter inspired by refmt with advanced support for language features from ES2017, JSX, and Flow. Prettier gets rid of all original styling and guarantees consistency by parsing JavaScript into an AST and pretty-printing the AST.
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.
JS Beautify
prettifyjs.net
JS Beautify and Minify - Online
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.
DebugBear
debugbear.com › tool › beautify-js
Online JavaScript Beautifier: Format JS Code
Prettify JavaScript code to make it easier to read and analyze minified JavaScript files.
GitHub
github.com › esbenp › prettier
GitHub - esbenp/prettier: Prettier is an opinionated JavaScript formatter.
Prettier is an opinionated JavaScript formatter inspired by refmt with advanced support for language features from ES2017, JSX, and Flow. It removes all original styling and ensures that all outputted JavaScript conforms to a consistent style.
Author esbenp
Oxidation Compiler
oxc.rs › docs › guide › usage › formatter.html
Oxfmt | The JavaScript Oxidation Compiler
It is built on the Oxc compiler stack and avoids architectural bottlenecks common in existing formatter implementations. Our benchmarks show Oxfmt to be approximately 30x faster than Prettier and 2x faster than Biome. Oxfmt includes built-in features that typically require external Prettier plugins: ... Oxfmt integrates into existing Prettier-based workflows. The oxfmt CLI behaves similarly to Prettier by default, allowing adoption with minimal changes to scripts and tooling. Oxfmt matches Prettier’s JavaScript formatting.
Biome
biomejs.dev
Biome, toolchain of the web
Biome is a fast formatter for JavaScript, TypeScript, JSX, TSX, JSON, HTML, CSS and GraphQL that scores 97% compatibility with Prettier, saving CI and developer time.
Scaler
scaler.com › home › topics › javascript › 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.
npm
npmjs.com › package › prettier
prettier - npm
Prettier is an opinionated code formatter. Latest version: 3.8.1, last published: a month ago. Start using prettier in your project by running `npm i prettier`. There are 20147 other projects in the npm registry using prettier.
» npm install prettier
Published Jan 21, 2026
Version 3.8.1
Author James Long
Repository https://github.com/prettier/prettier
Homepage https://prettier.io