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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):
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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: — 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).
People also ask

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.
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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.
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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.
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codeshack.io
codeshack.io › home › tools › javascript formatter
JavaScript Formatter - Beautify and Format JS Code Online
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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
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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 ...
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CodeShack
codeshack.io › home › tools › 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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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 ...
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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.
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Code Beautify
codebeautify.org › jsviewer
Best Javascript Beautifier tool work as JavaScript Formatter, Viewer and Prettier
Javascript Beautifier is easy to use tool to beautify, format and prettier JavaScript data. Copy, Paste, and Beautify. Welcome to the online Javascript formatter and beautifier at codebeautify.org.
Find elsewhere
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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.
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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.
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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.
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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.
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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
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Oxidation Compiler
oxc.rs › blog › 2026-02-24-oxfmt-beta
Oxfmt Beta | The JavaScript Oxidation Compiler
Oxfmt is a Rust-powered, Prettier-compatible code formatter built for the JavaScript ecosystem.
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Monsterlessons-academy
monsterlessons-academy.com › posts › formatting-code-with-prettier-in-javascript
Prettier - Best Code Formatter for Javascript, React, Vue, Html, Css
Prettier is the best code formatter for lots of languages like Javascript, React, Vue, Html, Css. With the tools like Eslint you spend a lot of time tuning rules and config files.
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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.
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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.
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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.
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OpenReplay
blog.openreplay.com › using-prettier-with-vscode-to-write-javascript
Using Prettier with VSCode to write JavaScript
Prettier is a powerful code formatting tool that can help improve the consistency, readability, and maintainability of your JavaScript codebase.