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Format and beautify source code in JavaScript, HTML, CSS, JSON, and SQL.
Formatted code will appear here
A code beautifier is an automated formatting tool that transforms messy, inconsistent, or minified source code into clean, well-structured, and readable format. It applies consistent rules for indentation, spacing, line breaks, bracket placement, and overall code organization without changing the functionality. Whether you are working with HTML, CSS, JavaScript, or JSON, a code formatter ensures your code follows best practices and is easy to read, review, and maintain.
In modern development workflows, code formatting is not optional — it is essential. Research consistently shows that developers spend significantly more time reading code than writing it. Poorly formatted code slows down code reviews, increases bug rates, and creates friction in team collaboration. Our free online code formatter at Jayax.dev provides instant, client-side formatting using the same industry-standard engines trusted by millions of developers worldwide.
Formatting your code takes just seconds with our intuitive tool. Follow these steps:
Properly indents nested HTML elements, organizes attributes consistently, adds appropriate line breaks between block elements, and handles inline elements correctly. Great for cleaning up auto-generated or template HTML.
Organizes CSS rules with consistent indentation, aligns properties within declaration blocks, formats selectors and media queries clearly, and handles complex stylesheets with nested rules and variables.
Applies consistent brace placement, proper semicolon handling, organized import statements, formatted object and array literals, and clean function declarations. Follows widely accepted JavaScript style conventions.
Converts compressed JSON into properly indented, human-readable format. Ideal for inspecting API responses, configuration files, and data payloads. Validates JSON syntax and highlights errors.
Use a code beautifier when you need to read minified production code for debugging, format code copied from Stack Overflow or documentation, clean up auto-generated code from tools and frameworks, prepare code for code reviews, maintain consistent style across a team project, or recover readable code from compressed files. For ongoing development, consider integrating a formatter like Prettier directly into your code editor for automatic formatting on save.
A code beautifier (also called a code formatter) is a tool that automatically reformats source code to follow consistent styling rules — proper indentation, spacing, line breaks, and bracket placement. Developers need code beautifiers because consistently formatted code is easier to read, review, debug, and maintain. Manual formatting is tedious and error-prone, especially in team environments where different developers have different formatting habits.
Our code beautifier supports HTML, CSS, JavaScript, JSON, and XML formatting. These are the core web technologies that benefit most from consistent formatting. The tool uses industry-standard formatting engines to ensure the output follows best practices and widely accepted style conventions for each language.
Simply paste your unformatted or minified code into the input area, select the language type (HTML, CSS, JS, or JSON), and click Beautify. The tool instantly reformats your code with proper indentation, consistent spacing, and organized structure. You can then copy the beautified output with one click.
Code beautifying adds whitespace, indentation, and formatting to make code readable by humans. Code minifying does the opposite — it removes all unnecessary whitespace, comments, and formatting to make the file as small as possible for production deployment. Beautifying is for development; minifying is for production performance.
Yes, our code beautifier is specifically designed to handle minified code. It parses the compressed code and reconstructs it with proper indentation and line breaks, making it easy to read and understand code that has been processed by a minifier for production.
No, the code beautifier only changes the formatting (whitespace, indentation, line breaks) without altering the logic, variable names, or functionality. The beautified code is functionally identical to the input — it just looks cleaner and follows consistent style conventions.
Our tool uses established formatting libraries including js-beautify for HTML, CSS, and JavaScript, and custom JSON formatting for JSON data. These are the same engines used by popular code editors and build tools worldwide, ensuring reliable and consistent formatting results.
Consistent formatting eliminates style debates in code reviews, reduces merge conflicts caused by different formatting preferences, makes the codebase look uniform regardless of who wrote it, and helps new team members understand the code faster. Many teams enforce formatting through tools like Prettier to maintain consistency automatically.
The tool provides common formatting options including indent size (2 or 4 spaces), brace style, and line wrap settings. These options let you match the formatting to your team style guide or personal preference while still automating the formatting process.
No, all code formatting happens entirely in your browser using JavaScript-based formatting engines. Your code is never transmitted to any server, making it safe for proprietary or sensitive source code. The formatting is instant because it runs locally on your device.
