Back to all tools

JavaScript Beautifier | JS Code Formatter Online

Format and beautify JavaScript code instantly with customizable indentation, brace style, and line length settings. Works with ES6+, JSX, and modern JS syntax. Free and private. Designed specifically for developers and professionals, this free online formatter runs entirely in your browser to process tasks quickly and securely. Enjoy unlimited usage with no data tracking and no registration required.

Also known as: javascript beautifier online free · js formatter online · format javascript code · javascript code formatter · js beautify online · prettier javascript online · javascript code indenter tool · javascript beautifier · javascript indenter

Liked this tool?

DevToolLab is free to use. If this formatter saved you some time today, please consider supporting our work.

Buy us a coffee ☕

Frequently asked questions

What is JavaScript Beautifier used for?

Format and beautify JavaScript code instantly with customizable indentation, brace style, and line length settings. Works with ES6+, JSX, and modern JS syntax. Free and private.

Is JavaScript Beautifier free to use?

Yes. JavaScript Beautifier is completely free with no usage limits, and there is no paid tier required to use it.

Do I need an account to use JavaScript Beautifier?

No. JavaScript Beautifier works immediately in your browser with no signup, login, or email address required.

Related Tools

Format, validate, and beautify JSON data with instant results and error highlighting. Supports nested objects and arrays. Free, browser-based, no signup required.

json tools
code formatters and minifiers

Parse, validate, and format JSON strings with detailed error reporting and line number highlighting. Instantly detect syntax errors in malformed JSON. Free online tool, no signup needed.

json tools
text tools

Format and beautify SQL queries with proper indentation. Supports multiple SQL dialects including MySQL, PostgreSQL, and SQLite.

sql and database tools
code formatters and minifiers

More Tools You Might Like

Share code snippets, logs, and text with a shareable link. Syntax highlighting for 30+ languages, expiration controls, and password protection for Pro users.
Create short, trackable URLs with detailed click analytics. Track visitor location, devices, referrers, and more. Password protection & QR codes included.
Generate a unique URL to easily test, receive and inspect HTTP webhooks in real-time. View request headers, query parameters, JSON payloads, and more.